I have been using a Linksys BEFSR41 router on my Scientific Atlanta DPC2100R2 Cable modem for about 3 years now. I had manually opened ports because I had UPnP disabled for the longest time. These ports worked for 3+ years. With the latest update, I can't use these ports anymore. I enabled UPnP and still nothing. I have tried both Port set-ups provided by the support section of this website and the Sticky on this forum and none have worked. I am 100% positive it is NOT (I repeat NOT) a double NAT problem. This is becoming an increasingly frustrating topic as it seems NOTHING is working after this latest update, and I am beginning to lose the ability to play with any of my friends. I don't want to have to cancel my Xbox Live.. but this problem is projecting me towards that option.
Does anyone have any other suggestions for me?