I have a Samsung network extender SCS-2U3100 that worked just fine until recently when I get a call or call someone they can hear me but I am very broken up to them. I have shut the system down and have verified the download speeds which are good. Any suggestions on how to get this fixed since I need my phone for work and it will not work at all with the extender currently. I have Iphone 5s and have disabled the LTE also.