I have a 3300v balancing the load of an 50+ user office across 3 adsl connections. It was working fine for a couple of weeks, however recently it has started randomly dropping one of the connections and users are getting a mixed availability of service. Some users have complete working internet connections, others can use some services but not all, others have no internet connectivity at all. I gave up trying to resolve the issues and went back to a single Netgear router and all the problems were instantly fixed.

I would love to get the 3300 back into service as one of the adsl lines was a dedicated VPN connection. Does anyone know why this would be happening and how i could resolve it?