@CM17X Re-installing the same firmware won't help. You would need a newer firmware that fixes the problem. But here is something you can do. This video...

Perhaps add a vote here https://community.tp-link.com/en/home/forum/topic/813658 .

@cyld Hi, As far as routers made by TP-Link are concerned, not all of the routers that support EasyMesh do also support EasyMesh connection via Ethernet. Looking at this list...

@Nikhilg This appears to be more likely an issue with Windows. You issue might be somewhat different than this...

@CM17X This must be a bug in the RE220's firmware then. By the way, do you mind posting the model name of the ISP router you've got? It's usually printed on a label attached to the router's bottom or...

@BrianRJ Hi, I assume you are referring to the "G.hn" Powerline standard. Powerline performance is really unpredictable. A "G.hn" Powerline adapter might or might not work better in your environment....