Signal got worse after firmware update
Recently I updated to the latest firmware version on my range extender, but my signal got worse.
My range extender is in my living room. Before the upgrade, I could use the extender without any issues on my bedroom. However, after the upgrade, I can barely catch the signal in my bedroom and the internet is painfully slow.
In the TP-Link router page, I can see that the "Wi-Fi Coverage" is set to Max strenght.
Is my only option to downgrade the firmware?
Also, I'm not sure if the previous version I was using is available for download. The download page for my router only shows 2 firmwares from 2018, and I think I was using a 2017 firmware.
Any help is gratefully appreciated.