Sell it, buy some other (rather avoid TP-link), end this misery. That's the only good advice that fix all you issues with this mess. Sorry.

@PetrE123 And f*** me twice as the message above could not be sent because "there are links to other content"... fu** me... how stupid is even this forum... no links were posted, just "angry dots"...

Hello all, I tried really all options I found on internet to bring this device into normal behavior...to get speeds which are far below Tp-Link Archer AX50 standards. To sum it up... ISP is 500 / 500...

@terziyski Thank you very much for your effort. I was hoping that I would see the right version from the router UI, but ok... I've unmounted the device to check that there is EU (shame why it's not...

Hello, even though I have no option to update firmware from the Tp-Link router web UI, should I do it anyway? Router's Web UI says I'm fine... But apparently the dates from build are not that fine......