Hi,
It is possible that the error I saw coincided with the time of your backup and that could have been a factor.
Regarding the connectivity issue, it might be something with your wireless router, I've seen strange results before, one possible cause is if your computer has ipv6 enabled but your router has problems with ipv6 either not supported or not well supported it may fail to resolve the request, while it should fall back to ipv4 it may not be doing that or doing it fast enough. Playing around with disabling ipv6 (on the network card properties) may help or may not but it might be worth a try.
The forum error was my fault, I'm often running newer builds of mojoPortal on this site in order to test new features and find any bugs before they make it into an official release, and there was a change in the forums that introduced an error, I saw the errors in my log the next morning after I had updated the site and fixed it quickly.
Best,
Joe