Map load err7, no reconnects possible. Looked over other threads.

I've looked over other threads, even tried a few of the solutions, but nothing's worked. Part of the problem may be that I am behind a university connection, but all other games work fine, and I am 100% sure the ports required for this game are open and willing. So my problem is that I get a map load err7 every so often. I can not reconnect from this load error.

Running: Windows XP, hardware specs above and beyond the minimum.
I don't really know what other info to give, but if anyone has any questions or advice, please, let me know! I need to fix this problem before my guild starts to GvG.

University connection may restrict port forwarding and block certain ports. Please note that not every game use the same port. Check with your System Admin.

I already addressed that. I checked on anet's site which ports needed forwarding, I asked my sysadmin, the ports were open.

I've had that problem sometimes as well, only sometimes though. Which is a good thing as it's very annoying.

Ok, so I tried a solution Anet gave me, but it didn't work. Now it just says "code=019"