I've recently upgrade the firmware for my 2962 to firmware version 4.4.5.1 from v4.4.3.2 - from that point I would lose access to the internet randomly, if I reboot the router it connects for a minute then fails again. If i change the DNS server and reboot i get a connection ranging between 30 minutes-5 hours, it's unpredictable. I initially thought it was a device on the network so isolated the device but still lost connection and had to change the dns server and reboot.In the end I have rolled back to 4.4.3.2.Has anyone else had this ?