I have a Sonicwall Pro 1260. Presently there is a DSL connection using IP passthrough to the WAN port. I am trying to setup a second DSL connection on the OPT port and use 50/50 load balancing. The connection will work great for almost exactly 10 minutes, the web traffic stops. If I setup a PING, the PING continues even though web traffic halts. I had Sonicwall tech support remote on and they did not lose connection when web traffic stopped. Any ideas? There are several VPN tunnels configured on the Sonicwall.