So I received my MB 3. Great signal everywhere in my 2185sq ft condo. Did a speedtest, before installing it by the front door window. Got 22-25MBps. Turned it on, let it sign to Sprint, RSRP around 50, did another speedtest, got around 5Mbps and increased ping and jitter. I repeated the speedtest several times and it got worse. Well, I will repeat the speedtest later on tonight to see if it improved. But if it does not within couple of days, off goes back to Sprint.