@KingRabbid Are the devices still able to see the 2.4G network when they disconnect from it? Please try to upgrade the router firmware we provided on this thread, then monitor.

@Dani_Bischoff Will discuss this on your own post: https://community.tp-link.com/en/home/forum/topic/252676

@Dani_Bischoff Just to confirm, who is your ISP? Is the WAN connection type Dynamic IP or PPPoE? Have you confirmed the internet is stable from the ISP modem by connecting a computer directly to it?...

@MJKMJK Can you please confirm the LED status again when the internet drops on the AX73, especially the Internet LED, is it orange or green when the internet drops? How about other LEDs, are they...

Thanks @Ivaylo for all the valued suggestions. @Tihomir we will discuss this issue on your own post.

@Tihomir Hi Tihomir, is the NAS connected only via LAN4? Just ensure it is not connected via 2 LANs. 192.168.6.3 is the IP address for the NAS? What if you tried to assign another IP for it, such as...