I have a problem with an MTCBA-G-EN-F1 router vs 1.10. I want to ppp into Vodafone Italy network. It seems the network does not need or allow pap/chap authentication. But if I leave username / password blank the router does not make a connnection.

Please upgrade your firmware to the latest 1.14. You can find the firmware here:

https://webfiles.multitech.com/wireless/mtcba-x-en