I have mild experience with 5G (and VPN) performance on the device over the last days of debugging, trying sqm and other methods to mitigate low performance. It’s tough to measure because of high unknown variance.
So I reset to factory, and test with the 300Mbit fixed fiber line over LAN cables.
Compared using the cable from the provider modem to the PC, and using the cable from the provider modem to [GL-X3000] to the PC, I see very big differences in performance.
Why I do this is because Zoom calls entirely drop, and buffering videos is way worse, not enabling smooth play. Webpages find DNS and start to load in ~40ms ( dnscheck.tools - test your dns resolvers ) but sometimes (rarely) stop for a long time, about 30s.
I did not make any changes (other than password) after device reset.
Please what could be the bottleneck? Where should I look? Can I read the temperature and fan RPM somewhere?
In general I feel very good about the router, great specs, software seems robust, just a new product with some things to patch. Unfortunately for me not usable with conferencing right now. (Zoom debugging runs flawless, it’s very strange).