Off topic post to end this virus excrement.
If you turn your virus software off it will stop doing everything that it is currently doing, blocking unwanted packets, watching every program that is trying to start up, so I have a better idea, why don't you tell the virus software to be quiet about Paintball and allow anything related to paintball be allowed through without any problems. Problem solved.
I had a Linksys router, pretty much the same model as that and I ended up returning it to the shop, as it was basically the excrementtest thing on earth. For the past couple of years I've had 2 routers running in the house, 1st one was the original router (Belkin) and I had no problems with it, and then I got a ADSL2+ Modem and Router thing from D-Link and it seems to work fine, no problems at all really.