MyBB Community Forums

So, my users are getting the "authorization code mismatch" error when trying to log in.  I've read all about this error, what causes it, etc.  But it's happening on the default theme (which shouldn't be possible) and is only happening for mobile users, desktop can log in just fine. 

Any ideas?

Is that specific to mobile data (rather than Wi-FI)? It may be related to changing IP addresses, which should be fixed in the next version: https://github.com/mybb/mybb/issues/3912

Interesting. Thanks for that! I have been able to reproduce the problem on WiFi with mobile data turned off. So, probably not that. But it could be somehow related. Seems promising.