You should consider filing a support ticket and attach the debug_logs for WD tech support.
Please follow the link to ‘Clear Device Settings’ if you have ‘server error’, but read the caveats and know that at least in one incident, there has been reported loss of one guest user account upon ‘Clear Device’.
It may not be possible to access the ‘Clear Device Settings’ if you have intermittent connection with the browser webapp but you can try a few times.
