@neverdie Does it have compression or checksum of the payload? I'm not used to that library, but it seems some processing is done. First try with plain repeating characters or numbers to discard encoding issues.

@neverdie On platformio, what do you use for programming? A black magic probe?

And about the 255 payload, have you looked for a wrong sized variable or type? If you want me to give it a go on visual studio+resharper just send me a sample. I still don't have a programmer and still haven't received my nrfs so I would only look for programming errors.

I was thinking more on a service that also could monitor temperatures and control power. But for being able to do that, it must be running while the computer is down. And also, should be impossible to use the existing networking. So a complete node would be preferred. I guess the nrf52 dongle could be a nice candidate for this. Inserted on an internal USB port and perhaps also connected to the MB switches and LEDs port.

I just had this idea where I thought about adapting the Linux GW code for acting as a computer service for sharing to the mysensors network the internal sensors and/or PW consumption or on/off/sleep features of a headless server.
What I don't like is the fact that as the coms would be easier through the existing lan, as opposed to implementing a radio, it would be in fact a new independent gateway.
What do you guys think about? Perhaps someone already thought about this.

Do you think this board could be used for a wifi gateway?
https://es.aliexpress.com/store/product/Nrf52840-development-board-ESP32-development-board-Mini/2956052_32921001572.html

@NeverDie Thanks for your time and good work!
I was thinking on start fiddling with the nrf52, but after the reading I don't know if I would handle it.

In fact, I had updates blocked using a group policy, and it worked for a while. But someday I noticed that the PC was turning itself on while I was not there. I thought it was the cat hitting the keyboard so I deactivated mouse and keyboard wake up and powering while off. But it didn't help. I also discarded wake on lan because the PC was doing it even without lan cable.
One day I saw that updates where happening and I realized that windows was turning the computer on for it. And then this message saying "we'll run updates when we find your computer is so behind on them" appeared below the one indicating that I blocked then by group policy, in updates screen. And last week, the computer was up to date.
So that's the way it is.

Even if you create firewall rules, I think they'll surpass them for their sake. I have opnsense as router/firewall, and I saw that now mistersoft uses thirty party cdns for their updates, so blocking them may be also a problem.

If anyone is interested, that was my channel scan when I decided to migrate to 108

Starting Poor Man's Wireless 2.4GHz Scanner ...

Channel Layout
|0         1         2         3         4         5         6         7         8         9         10        11        12    |
|012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345|
|   +RRWRRWRWRWRWWWWWW+.                                                      ....                                             | 27
|   WWWWRWWWWRWRWWRWWW                                           ..      .........                                             | 26
|  .RWWWRWWWWWWRWRWWRW*                           .                      .......                                               | 26
|   +RRWWWRWWWWWWRWWWW*.                                                 .......                                               | 27
| ...RWRWRaRRWRWRRWRRRR..                                                      ...                                             | 29
|   aWWRWRWRRWRWRWWWWR-                                                 .....                                                  | 26
|   =WWWWWWRWWWWRWRWRWR                                                  ......                                                | 26
|   RWRWRWWWWRWRWWWWRW.                                                   . ......                                             | 27
|   *aRRRWRWRWRRWRWRWW-.                                                     ....                                              | 28
|...RWWRWRWRRWRWRWRRWRW..  .                                                 .....                                             | 29
|   WWRWRWWWWRWRWWRWRWW                                                 .........                                              | 26
|   WRWWWWRWRWWRWRWRRRa  .                                                   .....                                             | 27
|   RWRRWRWRWWWWRWWWWRW     .                                                .....                                             | 27
|   RWRWRWRRWRWRWRRWRWR.. .                                                      .                                             | 27
|0         1         2         3         4         5         6         7         8         9         10        11        12    |
|012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345|
|...WRWWRWRWRWWRWRWRWRR...                                               .........                                             | 29
|   RWRRRRWRWRRWRWRWRWW                                                  ...                                                   | 27
|   WRWWRWRWRRRRWRWRRWR                                                  .......                                               | 28
|   RWWRWRWRRWRWRWRRWRW                                                  ..   ....                                             | 27
|   RRRWRWRRWRWRWRRWRWR                                                  .........                                             | 28
|...*aWaWRWWRWaWRWWRWaa.. .                                              ....                                                  | 31
|   aWRWRRRRWRWRRWRWRWa    ..                                           ..........                                             | 27
|   WRWRWWRWRWRRWRWRWRR                                                 ..........                                             | 27
|   RWRRRRWaWRRRaWaWRRR                                                   ...... .                                             | 28
|   WRWWRWRWWWWRWRWWRWR.                                                 ..   ....                                             | 27
|...RWRRWaWRWRRWRWWWWRW... ..                                           ....    ..                                             | 30
|   WRRRRWRWRRWRWRWWRWR                                                  .........                                             | 27
|   RWWRWRWRRWaWRWRRWRW                                                 .. ....                                                | 27
|   WWRWRWRRWRWRWRRRaWa                                                  .........                                             | 28
|0         1         2         3         4         5         6         7         8         9         10        11        12    |
|012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345|
| ..RRWRWRRWRRaRaaWRRRR  .               .  .. .. .. ... ...   .  .  .. ... .. ...                                             | 29
| ..RRaRRWRRRaWRWRaRaWa..                  .  ..  .     . .      .  ..  ......... .                                            | 33
|   aRRRWRWRRWRWRWWRWRW   .                                              ..... ..                                              | 28
|  .RRaRaWaRRaWRWRRWRWR                                                        ...                                             | 28
|   RRWRWRWRaWRWRWWRWRW                                                     .....                                              | 27
|   WWRWRWRRRRWRWRRWRWR                                                 ...                                                    | 27
|   RRWRWRWRRWRWRRRaWRW                                                     ......                                             | 28
|   WRRWRWRWRRWRWRWWRWR                                                     ......                                             | 27
| . RRRaWaWRRRaWRWRRWRW                                                                                                        | 28
|   WWRWRWRWRRWRWRWWRW* ..                                                .......                                              | 27
|   RWRRWRWRRRRWRWRRRR- .                                                ..    ...                                             | 28
|   WRRWRWRWRRWRWRRRaR                                                      ......                                             | 28
|   +RRRWaWRRRRWRWRRRa- .     .                                          ........                                              | 28
|   +RWRRWRWRRWRWRWWaa.                                                  ..                                                    | 28
|0         1         2         3         4         5         6         7         8         9         10        11        12    |
|012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345|
|   aaRaWRWRaWRWRWRRWRW.                                                 .... ....                                             | 28
|   aRRWaWRWRRWaWRWWRWa ..                                              .       ..                                             | 29
|  .RWRRWRWRWRRWRWRWWRW  ..                                             .......                                                | 26
|  .WRWRRWRWRWRRWRWRRWaa  .                                                 ...                                                | 28
|   aWRWRRWRWRWRRWaWRRRa                                                .     ....                                             | 28
|   RRWaWRRRRWRWRRWRWRRW                                                     .....                                             | 28
|   RRaWRWRaRaWRWRRWRWRW   .                                                ......                                             | 28
|   RWWRWRWRRWRWRWRRWRWR.                                                       ..                                             | 27
|  .WRWRRWRWRRWRWRWaaWaW...   ..                                            .. ...                                             | 28
| ..RWRWRRWRWRWRRWRWRRWR   .  .                                         .....                                                  | 28
|   RaWaWRaWRWRWRRWaWRR*.                                                     .....                                            | 29
|   RRRWRWaaRaWRWRRWRWRa      .  .                                       .........                                             | 28
|   RRWRWRWRRRaWRRRaWRW.                                                    ......                                             | 27
|.. WRRWRWRWRaWaWRRRaWa.                                                                                                       | 28
|0         1         2         3         4         5         6         7         8         9         10        11        12    |
|012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345|
|   RRWRWRWWRWRWRRWRWR .                                                     ....                                              | 27
|   RWRWRWRRRaWRRRaRaW.                                                 .......                                                | 28
|   aRRRWRWRRWRWRWWRWRa..                                                .......                                               | 28
|   aaaRaWRRRRWRWWWWaW=.                    ..                          ......  ..                                             | 29
|   aWWRWRWRRRaWRWRRWa=.                         .                      ..                                                     | 30
|   WRWWRWRWRRRaWRWRRWR    .                                            ... .. ...                                             | 27
|   RWWRWRWRWRaRaWRRRaR .                .      . .                     ....                                                   | 28
|   WRWRRWRWRWWRWRWRRRa                     .                           ......                                                 | 29
|   aWaRRaRRWRRRRWRWRRW  .                                               ..                                                    | 28
|   WRWRRRaRaWRRWRWRWRR                                                 .........                                              | 28
|   RWRWRRRRWaWRRWRWRWR    .                                              . .....                                              | 27
|   WRWRWRRWRWRRRaWRWRR .                                                .........                                             | 28
|   RWRWRWWRWRWRRRRWaWR     .                                                ....                                              | 28
|   RRWRWRRWRWRWWRWRWR+                                                     ......                                             | 27
|0         1         2         3         4         5         6         7         8         9         10        11        12    |
|012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345|
|   *WRWRRWaWRWRRWRRRR+.   .                                                .......                                            | 29
|  .aaRaRaRRRWaWWaWWWaW. .               . ...  .  .  .. .. ..  . .  ..  ..  . ...                                             | 31
| . WRRRaWaRaaWRWaWRaWR  .                 .   .  .  .. .. .  .. ..  .  ..  . ....                                             | 30
|   RWRRWRWRWRRWRWRRWRW  ..                                                    ...                                             | 26
|   WRRWRWRWRRRaWRRRaWa.                                                     .....                                             | 29
|  .aWRRWRWRWRRWRWRWWRW+                 .. .                                 ..                                               | 27
|  .*aa*a*a**a*a*aaaaaaa      . ...........::-++WWWWRaa=:.               .. ....   ...... ... .......                          | 37
|. .*a*aa*a*aaaaaRaaa*Ra    ..............:-*RWWR*=:..                           ..    .........:-:::..                        | 33
|  .RWRWWRWRRRRRRWRWWRWR .  ..............::-+aRWW*+--::.                    ... .        ...........                          | 27
|  .WRWRWRaRaWRRaaRaRaRR                                                                                                       | 29
|  -RWRWRWWRWRWRRWRWRWRR                                                  . ...                                                | 27
|  -RWWWWRWRWWWWWWRWWRWW.......:.::........-++a+=-:....                     ......   ..... ..::=*+-.                           | 27
|  :****a*a*a*aa*aaaa*Ra   ..............::=+aRWWa*=:...                     ..    .... .......                                | 35
|  :RWRWWRWRWRWWRWRWRRWR..... .......:....::--:=----::...     .  ...........::::-..:....::.                                    | 27
|0         1         2         3         4         5         6         7         8         9         10        11        12    |
|012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345|
| .-WaWRWRaWRWRWWaWRWRRW     .                                              ....                                               | 28
|  -WWRWRWRRWRWRRWRWRWRR                                                                                                       | 27
|   RRWRWRRWRWRWWRWRWRR.                                                    .....                                              | 27
| ..RRaWRWRRWRWWWWRWRWR-.                                                   ...                                                | 30
|  .aaWaWRRRRWRWWWWRWRW-...                                                                                                    | 30
|   RRaRaRaRRaWaRRRRRWRa                                                  ......                                               | 29
| ..*WWRWRWRRWRWRWWRWRW.                                                        .                                              | 27
|  .=RRWaWRRRaWaRRRRRWa                                                       ..                                               | 28
|   -RWRWRWRRWRWRRRaWRR                                                    ....                                                | 28
|   aRaRaWaaRaWRWRaWRWR.. .............    .                              . ....                                               | 29
|   RaRaWRRRaWRWRRWRWRW:            .             ..                          ..                                               | 28
|   aWRWRWRRRRWRWRRWRWW+..     .                                          .....                                                | 27
| . aWWRWRWWRWRWRRRRWRW-                                  .                ......                                              | 27
|   RRRWRWRWWRWRWRRRaWa=                                                   .    .                                              | 28
|0         1         2         3         4         5         6         7         8         9         10        11        12    |
|012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345|
|   =RWRWRWWRWRWRRRRWRR:...                                               . ...                                                | 28
|   RRRWRWWRWRWRWRRWaWR-                      .                           ......                                               | 28
|   aRRRWRWRRWRWRWWRWRW   .                 .                             . .                                                  | 27
|   aRaRaWRRRaWRWRRWRWR.                                                    .....                                              | 28
|   *WWRWRWRRWRWRWWRWRW.       .                                                                                               | 26
|  .*RRWRWWRRRWRWRRWaWR*.        .                                          .                                                  | 28
|   =WWRWRWRWWRWRWRRWRW.       ..                                                                                              | 27
|  .*aaRaWaRRaRaWRRRRWR..                                                 .....                                                | 29
|  .aWRRRaWRWRRWRWRWWRWR      .                                                                                                | 28
|  .aRWWRWRWRWRRWRWRRWa=                                                  . ....                                               | 27
|  .-RRWWRWRWWWWRWRWR==:                                                                                                       | 27
|  .RaWRRRaWRWRaRaWRRR*-                                                  ....                                                 | 29
|   RWRWRRWRWWWWRWRWWWW:                                                    ....                                               | 27
|  :RaRaWRaWaWRRRaWRWRRa                                                    .....                                              | 28
|0         1         2         3         4         5         6         7         8         9         10        11        12    |
|012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345|
|..RaWRWRRRaWRRRaWaWRRRa                                                   ....                                                | 29
| .aRRWaWRWRRWaWRRRRWRWa..      .                                               .                                              | 27
| ..WRRRaWRWRaRaRaRRaRaW .  .            .  .  .. .. ..  . .  ..  .  .  ..  .....  .                                           | 29
| .:aWRWRaRRWRWaaWRRRRRR.  .               .  .. .. .. .. .. ..  :  .. .. ..  ..  .                                            | 30
|  +RaWRWRWRRWRWRRWRWRWR                          ..                      ......                                               | 28
| ..WRRWaWRWRRWRWRWWRWRW                                                    .....                                              | 28
|  .RWRRRRWRWRRWRWRWWRWa         .                                              .                                              | 27
|  .WRWRWRRWRWRRWRWWWRR+        .   .             ..                     .. .                                                  | 27
|  -aWRWRWRaWRWRRRRWRRa+                                                  .....                                                | 28
|  -RRWRWRWWRWRWRWRRWaWR                                                 ..                                                    | 28
|..-WRWWRWRWRRRRWRWRRWRR                                                  ....                                                 | 28
|  -RWRWRaWRWRWRRWRWRWWR                                                  .     .                                              | 27
|  =RRWRWRRRRWRWRRRRWRWR                                                  ....                                                 | 27
|  -WRRWRWRRRRWRWRaWaWRR                              .                  ... .....                                             | 28
|0         1         2         3         4         5         6         7         8         9         10        11        12    |
|012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345|
|  :RRWRWRWRaRaWRWRRWRWR                                                 ........                                              | 28
|. .WRRWRWRWRRWRWRWRaWaW                                                 ......                                                | 28
|  -RWRWWRWRWRWWRWRWRaWa.                                                ........                                              | 28
|  .RaWaWRaRaWRWRRWRWRRR.                                              .........                                               | 28
| .:WRaWaWRRRaWRWRRWRWRW   ..                                        .                                                         | 28
|  -RWRRWRWRRRRWRWRRWRWR                                          .     . .......                                              | 27
|...WRWRRWRWRWaaWaRaRRaR..                                               ..                                                    | 31
|  :aWRWRWRRWRWRRRRWRWRa                               .                       ..                                              | 28
|  :aaRaWaWRaWRWRWRRWRWR. .                     . .                       . ..... .                                            | 29
| .:WaWRaRaRaWRRWRWRRWRW   ..                                                   ...                                            | 28
| ..RWRWRRWRWRWRaWRWRWR=   ..                                                   ..                                             | 27
|...WRWRWRWRaWaRaaRaRaR    ..   ...                                            ....                                            | 30
|  :WRRWRWRWRRWaWRRRaWa:  ...                                              ........                                            | 28
| .:RWRRRRWRWRRWRWRWRRWa. ..                                                ......                                             | 28
|0         1         2         3         4         5         6         7         8         9         10        11        12    |
|012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345|
| ..WRWRRRRWRWRRWaWRRRa*  ...                   ..  .                       .......                                            | 28
|   RWRWRRRRWRWWRWRWRWW:  .               ..      ...                       ......                                             | 27
|  -RaWaWWRRRWRWRRWRWRWR  ...                                             ......                                               | 30
|  =WWRWRWRWRRWaWRRRRWRW  ...                                                   ...                                            | 27
|   -*RRWRWRWWRWRWRRRa=.                                                    .......                                            | 27
|  .RRWRRWRWRWWRWRWRRWa-  ...                                               ...                                                | 28
|  .aRaWRaWaWRRRRWRWRRR*  ...                                             .  ....                                              | 29
|..*RRWRWaaRRWRWRaWRWRWR  ...                                            ..       .                                            | 28
|  aWRRWRWRWRaWRWRRWRWRW   ..                                             .      ..                                            | 27
|..=aWWRaaRRWWWWRWRWWRWa......                                .....  ..  . ............. .                                     | 32
|   aaWRWRWRaWRWRRRaWaR.  ...                                             .........                                            | 29
|  .aRaRaWRRRRWRWRRWRWR-  ...                                               .... ..                                            | 28
|...RWaRRRWRWRRWRWRWRaW=  .. .                                            . ... ...                                            | 30
|   WaWRRRaWaWRRRaWRWRR=  ...                                             ..     ..                                            | 28
|0         1         2         3         4         5         6         7         8         9         10        11        12    |
|012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345|
|  :aWRWRaWaRRWRRWRWRWW*   .                                    ..    .. ..                                                    | 28
|  :WRWRWWRRaWRWRRWRWRWW                                                       ..                                              | 27
|  *WRRWRWRWRRWRWRRWRWRR                                                                                                       | 28
| .+aWaRRRWRWaaWaWRWRaR*.  .            .  .   .  .  .     .  .  .. .. .. ...  .                                               | 31
|. -*a**R*Ra*RRWRWRaWaR*....... ....       .  .  .  .. .. .. .. .. .. ..........  .                                            | 36
|  -*RaWRRaaWRWRRRaWRWWR....:...:::.:::-::::::.:::...::::::.::::::...............   ......  .......... ........ ...... .    . .| 30
|. =aWRRRRWRWRRWRWRRRWWR... .::..:.............            . ......        .........                                           | 30
|..-aRWRWaWRRWRWRRRRWaWW..  .                                                 ...                                              | 33
|..:aRWWWWWRRWWWRRWRWRRa.....:.::....:::...::::..::::::...:::..............                                                    | 34
| ..RWWWWRWRWRRWRWWWWRWa.......................                .. ... ..     ...         .....                                 | 29
|...RaWRWWWRRWRWRRWaWRW+... ............  ... ..    ....            ..      ...                                                | 31
|.. WRWRaWRWRRWRWRWRRWR.                                                     ....                                              | 28
| ..RRRWWWWWWWWRWRWWWWR....::::...:----:...::::................ ....... ........                                               | 30
| ..RWRWRRRaWaWRRRaWaRR.  .                                               ......                                               | 28
|0         1         2         3         4         5         6         7         8         9         10        11        12    |

And that's the worse I get today:

|012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345|
|                             .  aRaRRRWRWaa ..                                                                                | 28
|                               .RRaRWWWWRRR                                                                                   | 26
|                                WRWWWWWRWWW   .                                                                               | 25
|                                RRWWWWRRRWR                                                                                   | 24
|                                :WWWWRRRWWW                                                                                   | 25
|                             ....WWWRWRRWWa .                                                                                 | 25
|                                :WWWWRWWWW-                                                                                   | 27
|                                +WWWRWWWWWR                                                                                   | 25
|                                WWRRRWWWWRR  .                                                           ..                   | 25
|                            ....aWRWRWRRRRR....                                                                               | 26
|                            ..:.RWRRWWWWRRW.:..                                                                               | 30
|   ...     . ...   .....    :...+WRRRRaRWWW....     ...     ..   ..   ..   ..                                                 | 29
|                            :...WWWWRaaRRaW-:..     ..                                                                        | 32
|                                RWWRRRRRWWR                                                                                   | 27

I'm using a new device so still I may have something to adjust in the scanner as I don't get the band being so clean. I've changed the old wifi AP for an ubiquity thou.

@gerard-van-seventer Thanks Gerard for the hint on version. I wonder how you manually choose betwenn drives in windows. I guess you simply uninstall the existing when the device is present and then install the wanted one?

@yveaux Thanks! Good point. I'll first give another go to the scanner and try with a lower channel.