
Originally Posted by
watercooled
Yeah, that combination of open and moderate connections could cause that to happen. It's like this, Open can connect to anyone, Moderate can connect to Open or Moderate, Strict can only connect to Open.
If UPnP was disabled, and if you've not set up manual port forwarding then NAT would almost certainly be Closed, not Moderate. Moderate usually implies the router doesn't do UPnP well, sometimes a firmware update might help, as might setting up manual port forwarding but if not then a new router is about the only thing - just check its compatibility before buying.