My pc randomly stopped connecting to my router. It was working fine for a long time. Signal strength is fine. It will sometimes connect but at a very slow speed <100kbps and eventually go to zero after a minute or so. My phone connects fine to the modem and my PC connects fine to my phone hotspot. Everything on my PC is up to date and I tried a factory reset on my router. Its just a cheap huawei router and tplink wifi dongle.