After I updated router to latest firmware on official website I can't access web menu from any device and any browser. Configuration from Tether mobile app works fine but website can't be accessed because of Unsupported browser! error. Network works/connects fine. Everything I found on Internet won't help, so I'm writing here. As last resort I tried flashing it again but with TFTP. This didn't help. (I know it flashed successfuly. Don't write something like refresh your browser data... Thanks in advance!)

Tried every major browser on many different devices with no luck.