Review on GIMILINK Coaxial Lightning Arrestor Surge Protector - F-Type Female to F-Female 75 Ohm for Satellite, Cable TV, Antenna, 2G/3G/4G LTE Cell Phone Signal Booster by Todd Phillips

Installed this device and it worked fine for 5 days. Internet and telephone worked perfectly. Then on day 6, the internet was awful intermittently. The ISP tech came out and said he measured a very weak return signal on our cable. When he replaced that surge protector with his own, he measured the signal and it was strong again. He said that this device is definitely causing the problem. I don't know why this seemed normal for 5 days but I'm returning it as our internet and phones are down because of it. This device is much heavier and prettier than the cheap one he installed, but at least his device works.