I've started having issues with my Archer C2300 router where it periodically prompts me to create an admin password when logging in instead of prompting me for my bound e-mail address and password.  Entering a password here has no effect, and things return to normal after a hard reboot via the power button on the router since I can't access the web config.  The last month or two, this has been occurring every couple of weeks.  One of the times, I also lost WiFi access until rebooting (although wired still worked).  Firmware is the latest available, and no config changes have been made lately.  After my last reboot yesterday, I reset the router to factory setttings, but then I restored my saved settings, so perhaps that won't make any difference.

Has anyone else experienced this?  I access my home network remotely frequently, so reliabilty over extended periods when I don't have physical access to the router is important to me.