I own 3 plugs and have been trying for two 1/2 unsuccessful days to connect one of them to my home 2G network.  TP-Link chat support  advises it may be a congested router problem - go to a different channel. ISP support advises that's not the problem. Router is OK. I disabled my 5G network  and tried again - and failed.  Each plug has been reset over and over. Kasa App has been Uninstalled and reinstalled. Still won't connect. Don't know what else to to do.Please help if you can.