Backup to remote time machine in mountain lion

[holytexas123456]

I used to back up my mac to a remote time machine over the internet by using back to my mac in lion. Now in mountain lion GM I can no longer get this feature to work. I see the airport express under the shared section but when I run a time machine backup it says the backup disk is not available. I even tried mounting the dmg in the backups folder manually but that did not work. Is anybody else facing this problem?

 

[T-Will]

I'm having a similar issue not being able to backup to a USB drive connected to my Airport Extreme (on the local network not over the internet). Any ideas?

 

[Weaselboy]

I'm having a similar issue not being able to backup to a USB drive connected to my Airport Extreme (on the local network not over the internet). Any ideas?

Time Machine to an external on an Airport Extreme has never beed supported by Apple. Some report it works well, while others user say it can be sporadic.

 

[T-Will]

Time Machine to an external on an Airport Extreme has never beed supported by Apple. Some report it works well, while others user say it can be sporadic.

It was working well for me without any issue before Mountain Lion. Anyway, somehow I got it to work again by selecting a different "disk" in Time Machine (it's just a different folder on the same network USB drive).

 

[elistan]

ML seems to have some issues dealing with some Lion based Time Machine backups. Not sure if these issues are all related, or just coincidental.

https://forums.macrumors.com/threads/1411297/