@Aaksz What you have found is the current router design, as you can see there is an AP Isolation for both frequencies, which means it only isolates the devices communicating with each other in the...

@simontplnkt6oO What if you reconfigure the WR841N to work as an AP manually by connecting the main router to one of its LAN ports? You can follow Case 2: https://www.tp-link.com/support/faq/1384/...

@mosharaflink Is there a range extender connecting to the Archer C6 via Onemesh? If no, try to disable the Onemesh feature on the C6, then reconnect to the 2.4G network to monitor the connectivity...

@ganeshahv Check the following thread and report back with the requested information, we will see how to proceed: [Troubleshooting] Router keeps rebooting randomly?

@MayBe88 Thank you very much for the follow-up. Please report the issue to the support engineers directly, as I can see the case had been escalated to them already months ago. They will provide...

@Pajik77 Hello, thanks for reporting the same issue to the community. We will provide an updated beta firmware soon, please kindly wait.