A while back we had issues with a Juniper SSG5 where once plugged in, it would pretty much stall the entire network until we unplugged the device... We've looked at it and couldn't figure it out. Ended up calling Juniper support and they pretty much told us to log when this happens again next time. Unfortunately it does not log anything that can give us an idea of where to look. We have one other SSG5 setup as a firewall for a remote location acting as a VPN connection, however that firewall does not seem to be causing any issues. There are however a few differences, the firmware version of the firewall in the remote location is 5.4 and the one that's problematic is 6.3. As a troubleshooting steps, we did try firmware version 5.4 and a few others to no avail. I am wondering if I turn off the wireless capabilities, will it rectify the problem? or if not perhaps it will narrow down the troubleshooting steps? I also checked to see if we were using IGMP/Multicast on the firewall and we're not. We're really stumped here... Btw we have three of these device in the HQ office, which is where the problem is happening, and all three create the same problem. Anyways just wanted to know if anyone experience similar issues? Thanks!