Hello, I have a 5224 phone with a 5310 Conference unit attachment which has a speaker disk connect to the conference unit via an ethernet cable. We had the phone unplugged for a couple days and were using PoE while the power adapter was gone. Now we have the power adapter back and I'm using that for power but now, the conference unit is constantly flashing yellow/green in the LED light on top and the speaker unit won't turn on. The speaker on the 5224 still works and powers up but I can't get the conference unit to work. Any thoughts? Attaching photos of the current setup.