Nostalrius Begins - Quality wow vanilla realm (1.12)

I keep disconnecting every 10-15 minutes. I've had this problem for a while but dureing the summer it was maybe every hour or every other hour. Now it's much more frequent and therefor the game becomes unplayable. I've tried:
- disabling firewall and anti-virus program,
- running as administrator,
- pinging different sites when disconnected, but my internet seems stable. I have no problem like this in any other game,
- disabling addons
- and switching between login.nostalrius.org and login2.nostalrius.org.

Do more people have this problem and is there something else i should try to fix this?

I fixed it now.

Basically i started trying everything in viewtopic.php?f=45&t=11569.
When i used the tracert and pathing Cmd-commands i noticed several timeouts. I do not have this problem while playing other games. I suspected this had something to do with my router settings, but rather than trying to change different router settings i just inserted my ethernet cable into the modem instead of the router. Now it works perfect. So if you have the same problems try doing what i did, if u have to connect through a router, try enabling UPnP or port forwarding in your router settings. U can find the server IP:s and ports in the previous mentioned link.