Windows 10: Keep getting Default Gateway not found error

Hi,

I moved in to the new apartment and since the Wifi reception wasn't so great I asked the landlord to install a Fritz Repeater 600. Now I get the signals but every 5 mins I drop connection to the internet due to Default Gateway not found error. That never happened to me before ever and my system and the software all are same. The internet works if I either reset the Wifi, Plug/Unplug the repeater etc. but only for 5 mins. By the way, I have a desktop PC and I'm using TP-Link TLWN-725N as my USB Wifi Adapter.

I know this is a common problem and there are tons of articles on it but nothing worked for me. I already tried:

• Setting the power options to High Performance/Never allow Windows to turn this device off
• Update the drivers (It automatically picked Realtek driver but I also tried by manually downloading the TP-Link driver)
• Can't downgrade to 802.11g since n is the only option I get
• Enable/Disable Firewall (I'm using ESET Internet Security)
• netsh int ip reset
• Manually assigning Gateway/IP

I should also mention that I don't have root access to the actual Router as it's in another adjacent apartment so I can't really tinker with it much. Also I all my other devices work without any issues like my Macbook and Phone. It's driving me crazy, can someone please help me out with this?

Thanks.

:)

 

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