After recently undating my (free) version of 3cx, it has been working well for months. Today I got several "stun resolution error" messages. I tried to log into the management console to look at logs but the default username and password dont' work anymore. It isn't like me at all to have changed them without writing the new ones down. Can this be reset? I have a backup made usingthe backup tool, but I haven't tried a restore. Does the restore require the mystery username and password? Thank you!