We have started using Metal Grooves on high sites for certain of our clients (to utilize the higher power output). The strangest thing has happen once or twice. We have had a groove that has about 5 clients, and all works well, and then after about 8hrs, all the clients just loose connection. No matter what I do, I can't get them to reconnect. In the log, it just shows poll timeout. A reboot fixes it, and then we normally replace the groove. Any ideas ?