@m4rk_ Thank you very much for all the detailed info. The tech team was made aware of your issue, they will likely reach out to you via email to continue to troubleshoot your issue.

@Heppeno Do you remember what is the previous version? If it was this one Archer C7(EU)_V5_201120, I think you can give it a go to roll it back.

@StevenRN Are the A71, S5E Tab and Oneplus 7T detecting the main 5G signal or not? Which 5G channel on the AX1500 now? You may try to change the 5G wireless channel to 36/44, then reboot the AX1500...

@EugeneP We have reported the issue to the support engineers, they will likely reach out to you via email to continue to troubleshoot your issue.

@Magnus33 What is the current Transmit Power level, is it High or Middle? Try to change it to Middle or Low, then reboot the AX20 manually to monitor. We have reported the issue to the support...

@Darien174 Have you figured out the first part on the Nintendo Switch? According to the manual you attached, you need to set a static IP address on the Nintendo Switch first. If the IP address of the...