usb modem for failover

Hello everyone, I've searched around the forum but didn't find something that match my need (If someone already has this needs, sorry for the doublon). Let me recap the situation: For like a month now I have a strange issue with my ISP. Everyday, starting to 9 PM (21h) I have like...

Thinking about trying to setup a secondary WAN connection using Verizon USB Modem for failover, the primary connection to WAN is Cable. Looking at the modems supported on the ASUS website @ http://www.asus.com/event/networks_3G4G_support/ and it appears that there are 2 devices supported for...