Both an Archer D2 (no longer made) and my recent Archer C3200 have an issue. At some point, for unknown reasons, they reset to defaults. When I get them re-configured, they work but the web pages on the remote management interface no longer work. We can access the configuration from the LAN, but any attempt to log into the router remotely will succeed but the page after the login screen is a partial white box and no way to touch any of the configuration items. Resetting the router and re-flashing firmware does seem to bring it back.