TheCursedRouter
New Around Here
Hey everyone,
Wanted to make a post here since I had a few good leads here but none solved my issue.
The issue:
WAN port stuck at 100 mbps on my Asus GT-AC2900 (with actual speeds only reaching 10mbps max on the 10/100)
Things I tried to fix it:
Disabling QoS, multiple CAT 5E cable replacements, firmware upgrades and downgrades, comcast technician support, 2 different modems, mac address cloning, and I even tried to learn the qualcomm commands to force a 1gig duplex (I think that's what it's called?) since robocfg isn't available on these routers (as some of the other more experienced users here have seemed to try). Merlin is also no help since it apparently isn't supported on this hardware? Asus support refered me to fill out a form to recreate the issue in their lab setting but that would have taken too long and at that point I decided I needed to return the router since it had to be a hardware issue.
The solution:
The WAN port must be defective because I tried one last attempt to solve the issue after I did some research about using a LAN port as a WAN port. I did this by going into the settings, enabling dual WAN, setting LAN1 as the primary port and WAN as the secondary. Then poof, 400mbps speeds. Faster than the speeds I was expecting given my circumstances with the comcast support.
My recommendation:
If you tried all the troubleshooting I did (minus the qualcomm commands since there simply isn't enough documentation there yet) try your other LAN ports as primary WAN's and see if those work. If that doesn't fix your problem I'd say all your ports are probably defective. Don't go down a 4 day rabbit hole of troubleshooting research like I did and just go try to get a refund.
Hope this helps some people!
Wanted to make a post here since I had a few good leads here but none solved my issue.
The issue:
WAN port stuck at 100 mbps on my Asus GT-AC2900 (with actual speeds only reaching 10mbps max on the 10/100)
Things I tried to fix it:
Disabling QoS, multiple CAT 5E cable replacements, firmware upgrades and downgrades, comcast technician support, 2 different modems, mac address cloning, and I even tried to learn the qualcomm commands to force a 1gig duplex (I think that's what it's called?) since robocfg isn't available on these routers (as some of the other more experienced users here have seemed to try). Merlin is also no help since it apparently isn't supported on this hardware? Asus support refered me to fill out a form to recreate the issue in their lab setting but that would have taken too long and at that point I decided I needed to return the router since it had to be a hardware issue.
The solution:
The WAN port must be defective because I tried one last attempt to solve the issue after I did some research about using a LAN port as a WAN port. I did this by going into the settings, enabling dual WAN, setting LAN1 as the primary port and WAN as the secondary. Then poof, 400mbps speeds. Faster than the speeds I was expecting given my circumstances with the comcast support.
My recommendation:
If you tried all the troubleshooting I did (minus the qualcomm commands since there simply isn't enough documentation there yet) try your other LAN ports as primary WAN's and see if those work. If that doesn't fix your problem I'd say all your ports are probably defective. Don't go down a 4 day rabbit hole of troubleshooting research like I did and just go try to get a refund.
Hope this helps some people!
