Check with them....usually rx for this high speeds are at -24/27 db....either they will test and make changes or an -5db attenuator can be used.Rx seems to be stable now. This is the temp without the fan. I didn't experience any drop in speed, so it could be due to the low RX. Surprisingly, at -30 dBm, I got my max speed of 400 Mbps. I will ask my ISP to change the cable if I see any drop again...