In case anyone else has been wondering why mume is suppoesdly back up but I was still unable to connect - mmapper's server setting defaulted to mume.pvv.org - which no longer works! You need to change it to mume.org, then close and re-open mmapper.
I think there's been a mmapper update more recently than mine, but it was working perfectly so I didn't want to mess with it.
Mmapper unable to connect - need to update configuration
Re: Mmapper unable to connect - need to update configuration
MMapper 2.0.4 Final will automatically adjust the address to the correct, updated one. If you are uncertain how to do this, just upgrade.