RT-AX86U Pro limiting upload speed.

[Sintek]

This is the third Asus router that has worked fine for the first few months before the upload speed begins to degrade. Right now I'm averaging 950 down and 20 up from speed tests on wired. Wireless is just as bad. No amount of resetting, NVRAM clearing, cable buying, or firmware shuffling has any effect. Connecting directly to my PC's NIC magically restores my full speed so I know it's the router.

ISP for this and previous routers is Windstream 1gb fiber. I am lost as to what could possibly be causing this. Any help or suggestions greatly appreciated.

 

[bennor]

It may help if you post the specific firmware version you are having trouble with or are currently running. Also post how you have your router configured. Are you using any extra features or scripts on the router? Like AiProtection, QoS, AiCloud, AiDisk, etc. Do you have a USB drive attached to the router to use as a NAS? When you perform a hard factory reset are you manually reconfiguring or are you importing a saved router.cfg file? What is the specific broadband provider equipment that the router is connected to?

It very well could be a configuration issue on the router or between the router and broadband provider's equipment. As a datapoint, not having any speed issues with a RT-AX86U Pro running Asus-Merlin 3004.388.8_2 on a 500/500 fiber line. Router connected direct to the broadband provider's ONT. Constantly get 500/500 speeds from both the router's internal speed test and from a wired and wireless PC via speedtest.net. (Note second speed test attached done from WiFI connected laptop.)

PS: Also if you haven't done so already, use the forum search feature. If I remember right there have been one or two others who had recently reported speed issues that seemed to be due to a conflict between the Asus router and their broadband provider's hardware.