The question becomes... was that failed piece of equipment the real issue. The first stop to troubleshooting UT is get onto the thing's console and see if it has internet access. If it doesn't, you have to figure out why. If you had a router near the UT die, perhaps the interface on the router was shutting off and you just happened to blame UT for it. After all, a hard reset on the UT would reset the interface on the router as well.