Hello, a weird thing just started to happen. My Lift Master 828LM which was connected to my XE75 has gone offline and has stopped working. The light is just Blue on it and will not connect and turn green. I have rebooted the main XE75 and unplugged the 828LM and it won't connect. I have 2 other XE75's and a S4 on my mesh network. I tried plugging the 828LM into the XE75's and it won't connect either. But when I plug it into the S4 it connects! That makes no sense! I don't want to have the 828LM connected to the S4 as the S4 is out in the garage itself. Why will it connect using the S4 but not the XE75's? What could have happened? Makes no sense it worked before.  Thanks for everyone's help!