You could file a feature request here:

@Yuhoo Deco mesh and OneMesh are different technologies and that's why you can't configure RE300 in mesh with Deco M4 but only as an extender. Check this discussion for more details on that matter.

@Galin Disable UPnP, reboot the router and try again to open the port:

@rokeybd Your Archer C6 is probably with the EU FW and you can't see the Band 4 - (149,153,158,161,165) channels due to the CE certification compliance in Europe. You can check your C6 FW region on...

@Marawan These are all good questions. The site administrators should take care for any discrepancies on the web portal. Any finding of this type should be reported so the TP-Link be aware and take...

@Marawan Although it is not mentioned in the device's specifications, the following quote is from the second page of the AX55 user guide: "*Use of Wi-Fi 6 (802.11ax), and features including OFDMA,...