said by RShea :The power supply I got worked fine for a year or so. I temporarily replaced the 3rd party with a cell phone charger and the noise and static went away, but the dropped calls continued. They sent a new MagicJack Go with of course a new power adapter. That new Go also was dropping calls- even with QoS and DMZ set up on the router....
You get what you pay for, you do know that Magic Jack is at the bottom of the list for VoIP Providers. I'm surprised Tech people on here even use this Provider. Try some other Providers, you'll see how the service improves.