Hi have issues about RUT955 too.
I updated firmware to latest available (I downloaded it today from server).
- when I get registered on 4G I get private IP from operator (TIM, APN ibox.tim.it) but I can't ping 220.127.116.11
- if I force network to 2G or 3G I correctly get public IP and ping works
Is there something I can do to check this, or can I only send troubleshoot file?