@filefj You can use the Reboot Schedule (for example once a day):

@ArcherA6 Revert back the A6 settings as they were before any changes. Look at this guide for further troubleshooting: https://www.everydaytechvams.com/2020/09/how-to-fix-mi-tv-4a-pro4a4x-wifi.html

@ArcherA6 You may check this thread as well and try some of the suggestion for fixing this issue.

@torind Check the Internet port and LAN port negotiation speed in the following screen: If the speed of Internet or LAN port indicates 100Mbps, but your ISP provides more than 100Mbps bandwidth then...

@ArcherA6 Try changing DNS IPs in DHCP server settings as follows and test again:

@userntsatisfied Have you tried dynamic IP configuration ? If Huawei HG8245H is in router mode, this should work, but you'll have a double NAT in your network. If you want to avoid that the approach...