Hi I am thinking of buying a Vigor 2925s but as I also have terrible ADSL reliability I also need to use a 4G Modem to provide a WAN backup.

I have looked at the compatibility list and it all seems to be low end old 4g dongles, I want to use a 150MBPS capable CAT4 device to the WAN backup but I am having trouble finding one and there don't seem to be any listed.

Has anyone managed to setup a 2925 with a CAT4 4G device providing WAN backup and is so how?

Thanks