@Kynomad Hi, it is indeed quite strange. You mentioned that there is no any other device that might confuse it, how about any parental control related software installed on any of your client devices...

@snorthway Hi, it is recommended to follow this thread to troubleshoot first: What if TP-Link Router Disconnects from Internet?

@bankerjoe Thank you very much for the update. We will record it and report to our development team to continue improving it.

@Squeeks Thanks a lot for @ArcherC8 's help, please also refer to: Why TP-Link HTTPS web interface is detected as unsecure by some web browsers?

@snorthway When the issue happens, please check the LED status on the Archer A6 to see if internet turns red or orange, or the A6 router is actually restarting on its own. Besides, if you connect a...

@Kobigu Hi, please check if your available options are the same, if there is still only one option and no 160MHz included, please check if you are using 5G channel within band 4, if so, try to change...