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Hello

I've had an Archer C7 router for about a year and it worked perfectly. Suddenly, it started having problems: the system light would go on, and I could no longer connect to it via wifi or ethernet. The only way to reconnect was to turn it off and and back on.
I contacted TP Link and got a replacement. I installed it, and in 3 days the same issue started happening. I have tried updating the firmware and resetting the router to factory settings, but the problem keeps happening.
When I connect my devices directly to the internet jack on the wall, it works perfectly. I also tried connecting an older router that I had (from another brand) and it worked for several days with no issues.
I have no idea what the problem might be, and would appreciate help solving this issue.
Thank you

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