A firmware reflash seems to have done the trick. I can now log in from multiple machines on the LAN including the Tether app. I have unbound the admin to my cloud account for now. EDIT: Not sure if...

I also tried binding it and it still stops me from logging in. I have reset the router a couple of times already, its basically the only way to get in. I might try reflashing the firmware if it will...

No. Password changes to something else. I have tried lots of different combinations but it never logs me in. I have to reset the router. It then works for about 5 minutes and after that I can no...

My admin password on my C1900 keeps getting changed for some reason. I am on the latest firmware for my model.