Hello everyone!

My home is quite large (in a rectangular shape), so I recently purchased a TP-Link Archer C80 (or AC1900). My internet company provided their own router, and then I have an ethernet cable running through the walls to the other end of the house, where I have my office and this TP-Link router installed. However, I'm having some issues with it. If I set the router to Router Mode, it works perfectly fine and I get all the speed and no disconnections whatsoever.

However, I'm trying to set up a Plex server so I need the router to run in Access Point Mode so that all the addresses are in the same LAN (ex: 192.168.1.xxx)

Here's where the issue starts, if I set the router to operate in Access Point mode, instead of Router mode, I get a lot of internet disconnections. I even returned the router to Amazon and replaced it with a new one thinking that it might be a faulty router, but I keep getting a lot of 10-second disconnections (both in the wired and wireless devices). Maybe I get one 10-second disconnection every 1 or 2 minutes, not sure why, and then the internet comes back up again. I've noticed that the led with the computer symbol turns off when there's no internet. Any thoughts on how I could fix that? It doesn’t make any sense that the router works perfectly in Router Mode but it gets all these disconnections in Access Point Mode. Maybe it's something that I need to set up in the main router (the internet company one)?

Thank you very much,

Looking forward to your help,

Manuel.