The equipment is tested properly. You have a problem with the connection to the pool. You need to check the pool address in the settings. With the mining of Ethereum I've never had a problem. On my pool sometimes there are connection issues in the extraction of decred. But after a time, all connectivity is restored. I hope that the Internet works for you?
yes i m using tp-link 823n wifi adapter but speed is very low I also used WiFi adapter when I started mining. Lets just say that I learned to hate adapters...
