Archer AX1800 speed downgrades to 10Mbps
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I have been using the ArcherAX1800 Wi-Fi 6 Router (Hardware Version Archer AX20 v1.20) as Access Point at my home. I have a 200 Mbps Fiber connection from Airtel. For first few days the router worked fine, but then it started to deliver slow speeds. The Ethernet status started to show Internet speed as 100Mbps in Access Point Mode. Factory reset would resolve the problem. But it happened every 3-4 hours.
I then changed the mode from Access Point to Router Mode. The speed was instantly restored to 1000Gbps. But after working for 3-4 hours the speed was reset to 10Mbps Full Duplex.
Again, I changed the mode back to Access Point and instantly the speed was again 1000Mbps
The cable that connects the modem and router is perfectly fine. I have attached the cable directly to one of my computers and it delivers consistent speed as per my ISP Connection Plan for full day.
Please guide, how can this problem be solved.
Change Internet port negotiation speed setting like this and test:
Then switch back to AP mode and test again if the device will retain this setting.