I have a Verizon mifi 6620L tethered to a SOHO router and use it as my home internet source. This setup worked great for many months, but recently it has become very spotty.
If I disconnect the MiFi from the SOHO and connect directly to the mifi via wifi, it works without issue. When I reconnect the mifi to the SOHO and tether it barely works.
The 6620L can tether and shut off it’s internal wifi, and it also allows tethering while broadcasting it’s own wifi. I have tried both modes, and neither work. Interestingly, although the mifi wifi network is fine when untethered, if I select the option that allows tethering and having the mifi broadcast its wifi, both the soho network, and the mifi wifi do not work.
I believe the problem started when I upgraded to 6.3 firmware on the SOHO, and has steadily become worse. It is now at the point that it is unusable.
Any tips are appreciated.