I have a new deployment for an existing IP Office 500V2 (running 9.1.12). I ordered a new DS16 V2 and new DS30B V2. The DS16 is working like a champ. THe DS30B is giving me nothing but headaches and ready to get an RMA for it. Basically I have factory defaulted the IP Office using Manager as well as the reset button procedure on the controller with no luck. When you look at the DS30B V2 you will see the extension LED's intermittently blink on/off. Sometimes the phones stay online long enough to make a quick call or check voicemail but when the LED blinks, the phone loses connection and needs to be reset. I see absolutely no errors that I can recognize in System Monitor or Status. It is the strangest thing. Yes I have it set for DS mode (not BS/nortel phones). I have re-upgraded the system again to 9.1.12 as well as factory defaulted SD card and reloaded. At this point I am thinking a defective module?? The new DS16 V2 is working great as well as DS8 cards in main system. Anyone know if anything regarding the DS30B V2 (or aka DS30B2)?