Wireless Joint

Currently there are known issues with the ATT $65/$75 plans not working in modems.
You can find some alternative carriers here which should work in your router.
https://wirelessjoint.com/viewtopic.php?p=5790#p5790


TY Bill, I believe that was the missing key to my puzzle. My only options are AT ...

An alternative is to tether a phone via usb to the router flashed with OpenWRT firmware such as GoldenOrb or WiFix, in order to be able to set the TTL and bypass ATT's imei restrictions.

I am new to all of this and quite desperate atm.. I have the WE826-t2 currently flashed to openwrt 18.06 ...