My isp upgraded my package to 1gbps down and 500mbps up in December 2024. During that time my gt-ax11000 was connected to my isp modem (set as bridge mode). I did Speedtest on Ookla app on Apple TV that is wired to router with download speed around 950mbps and upload speed 500mbps. All working fine.
Since last week, the same speed test consistently giving 950mbps down and only 150mbps up. Called isp to come on site for troubleshooting with the following results:
A. ISP dlink remains as modem, isp technician connects his windows laptop with cable to my router, he managed to get 500mbps up. While all my devices such as wired Apple TV, iPad Pro m4, iPhone 16 pm can only get 150mbps up.
B. Setup dlink as both a modem and router, all the above devices got 500mbps upload. This basically not using Asus router at all.
C. Dlink remains as modem and router, Asus router as ap mode with cable connected to Dlink. All the above devices getting 500mbps upload.
D. Dlink remains as modem and another Asus router XT8 connected to Dlink, same results as A.
Both my Asus routers do not have QOS enabled, all testing were connected on wifi 5ghz or wired to Asus router. The internal ookla speed test of router also showing 950mbps download and 150mbps upload. Factory reset routers a few times also same issue. Roll back to firmware released in November 2024, same result also. I tried to disconnect all devices from my wifi, leaving only my iPad Pro m4 connected. The speed test is still getting 150mbps upload.
I can’t figure out what went wrong, this is driving me crazy and I am actually thinking to migrate to other brand if still cannot resolve. Can some one share some tips what was the root cause of this. Thank you.
