I'm having stability issues with this firmware. I upgraded this morning to version 15b1. Since this i've had problems streaming large files off of a computer. A couple of seconds in to the process the Wireless connection drops. I immiediately switched back to the stock 4.20.8 firmware and now everything is fine. Funnily enough I had this problem with an old version of the stock firmware too. It would have been pre 4.xx . The only out of the ordinary features that I was using on Thibor, was QoS for Skype (Highest) and HTTP (Medium), Static DHCP and a few blocked web pages. I did have Thibor 15 installed last night and it didn't seem to have problems but i'm not too sure if I was transferring large files. Any ideas anyone? Edit: I'm also using 128 bit WPA2 encryption. But i used that on both firmwares with the same key.