Buffalo Forums

I recently purchased my new router and discovered that my Back-to-My-Mac no longer works.  I checked to ensure uPnp is in fact turned on, which should allow all Back-to-My-Mac features to work.

Has anyone else had this issue with this router?

Thank you for any assistance.

Another thing I have noticed is that under iCloud setting in system preferences, the Back to My Mac setting is telling me that uPNP is turned off on my router.  I went to the router and unchecked the uPNP setting and clicked apply, then when it came back up, I checked the box and clicked apply and Back to My Mac is still reporting that uPNP is not on.  The System Status does not show the state of the uPNP setting.  I do see where the log shows that uPNP was configured both times when I clicked apply.

Thanks again for any help.

I guess this forum is either a lurker's forum, or this is quite a unique issue.  No matter, I solved it.

Situation:  My Apple TimeCapsule (TC) has a dying wifi radio, and I wanted to upgrade to a newer AC router that has a guest network and expansion capability (meaning NAS).  The Buffalo WZR-1750DHP seemed to fit the bill quite nicely and a lot less expensive than another TC.  My TC continues to work fine in wired mode and performs backups as usual with TimeMachine (TM), so I just needed a new Wifi system.

Upon installing the Buffalo router and configuring the TC for Bridge Mode Only I noticed that I was unable to access my computers via Back to My Mac (BtMM).  It was telling me that uPnp/NAT-PMP was not configured or turned on.  I went to the Buffalo Router and saw that in fact uPnp was turned on.  I even went as far as to turn off uPnp and then turn it back on.  That didn't remedy the situation.

After lots of research and finding nothing to help, my brother, who is a Mac specialist and CIO for an Apple centric company, told me to unplug the TC, then turn off BtMM on each machine, then turn BtMM back on on each machine while the TC was powered down.  Once each machine was reconfigured with the TC powered down I was able to access them via BtMM from outside the network.  Upon powering up the TC, BtMM continued to work properly.

The reason the TC needed to be powered down and BtMM reconfigured is because BtMM was registered to route it's traffic through the TC.  I did not power off the TC and configure BtMM with it off while the new router was up and running.  That's why I was getting the uPnp/NAT-PMP errors because TC was in Bridge Mode Only and those protocols were turned off.

Hopefully this helps someone else in the future.