My router shows -26.5 dBm during the daytime and -25.5 dBm at night. A few times a day, my internet almost stops working for websites other than YouTube for a good 10-15 minutes, but it still shows full speed on speed tests. I have spoken to my LCO, but since the speed appears fine on speed tests, he is not taking any action. This problem occurs randomly, so I can't demonstrate it to him when he visits. He says the power levels are fine. What should I do?