Very dissapointing reading all the same info about MME communication error. I also am having the same problem with my samsung verizon extender. It is a recent model from just a couple months ago and has started daily giving me the MME communication error. I have also done the factory reset, unplugging the device, etc. Have to to it on a daily basis. I hope verizon can work this out. It seems ridiculouse verizon keeps giving the same 2 or 3 responses for fixing the issue.