My firmware is up to date so I did a hard reset. The WiFi works but the speeds are very erratic; varies between 100 Mbps to 4 or 5 Mbps on speed tests. I am about 15 feet away from the router but the...

Model : TL-WDR3600 Hardware Version : Firmware Version : ISP : I have a TL-WDR3600 router that is hooked up to a solid 100 Mbps connection and has been working like a racehorse for a while. I have...