So, I finally got around CCCaster after getting a few friends together, only to see the almost unknown to me up until now feature of CCCaster somehow blocks any attempts at connecting and hosting through direct connection.
To get the obvious stuff out of the way, yes I have port forwarded to 46318 and checked that it is indeed open, yes connecting and hosting without CCCaster works fine, although the delay is troublesome, firewall inbound rules do have MBAA.exe enabled, I'm running Win7 so it's not a problem due to compatibility and my or my internet service's specs are more than enough to run the game while hosting.
Aside from that, trying to join through CCCaster shows that the IP address doesn't even exist, though it does work by using the logging ver, which then connects, yet the actual game simply gives me a "Link interrupted due to lost access point", which was tried multiple times after my friend tried rehosting just as many times and lastly, my friend's port was tested by a third individual, so it's certain it's a problem on my part.
So that's that, any ideas?