I've tested a solution to the beaver error yesterday that seemed to really make a difference... I can't disable my router because the family needs WiFi so I was searching for a work around when I found this YouTube video (link above). So a followed the directions and disabled "ip flood detection" on my router and my errors have decreased by at least 75% in the last day of playing. For the first time I can actually get to the tower and play crucible without being in someone else's fireteam. Check it out and see if it helps you guys too!