Everything was going fine with my nighthawk xr500 router and modem until 2 weeks ago a storm happened in my area causing my internet lines to be brought down. I contacted my ISP and they had repaired the damaged lines outside my house and even provided me with a newer and better modem. The technician ran speed tests on the modem and router and said the modem was pulling above avg speeds as in a good sign, but said the router was lacking in speeds. Ive tried resetting the router multiple times and changing and turning on multiple different settings. Still no change. I get 1gb download speeds and 40 upload. I'll run a speed test on my lan connected pc and pull the speeds that I pay for. Then run another test a minute later and pull below 100 download, but my upload is rather normal. Playing games are almost unplayable with frequent lag spikes and internet connection interrupted signals. I've tried 3 different ethernet cables and still no difference. All devices in the house will experience slow speeds frequently.