The problem I'm seeing appears to be different.
My 110 drops off the network. It just happened again.
My 110 has always been plugged into my Netgear 6300 WiFi router and worked fine with GV.
These are the things I've tried.
1. Changed Ethernet cable.
2. Disabled SIP ALG on the R6300.
3. Changed the 110 from using DHCP to use a static address.
I just tried the following, which I doubt will make any difference.
4. Plugged into a switch instead of directly into the R6300.
I can't imagine why switching from GV to SIP providers would cause the 110 to drop off the network after a few hours of working fine. I power cycle it and it works fine for a few more hours, then drops off the network again.
The only next step I can think of is to replace the 110.