Greetings - New to the FioS MINI. Installed the mini on second floor it connects to the main box which is on the first floor but the signal is very weak and cuts out - and reboots from time to time (too often). if i use the coax extender will this help with weak signal? I am using a Netgear EX8000 wifi extender now but it does not help with the mini signal. How can i get this mini to to work and boost the signal