Finally I've solved. I'm still using UIPEthernet sincee my problem was the use of DHT library (last rev) with UIPEhernet lib.
I was having a restart of teh ETH port each time I was reading Temp/hum. I've changed into SimpleDHT lib and now it's working fine. I'm using a mix of W5100 and ENC28J60.
You're right. Updated codebender library just now to the most recent on github/master
Not sure if codebender autodetects this if you already cloned it to your local account.
