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DSL-AC68U QOS classification not taking affect.

Mike K

New Around Here
The goal is to prioritise upload traffic from my workstation before all other traffic in the house. Family of 6 and when the kids get home from school, my work VPN connection (and the VOIP that relies upon it) turn to crap.

With my workstation added to the "highest" priority, my expectation is to be able to have access to the minimum upload bandwidth reservation even if my kids are all Netflixing at the time.

The global bandwidth limit that I set for the QOS takes effect fine, uploads are globally limited to a max of 600kbps, but my workstation is not able to upload at full speed when there is a contest from other computers. The upload bandwidth is being shared evenly, not being prioritised.

It seems that no traffic is being prioritised at all. To test this further I then went the other way and tried to DEPRIORITISE my workstation. Set my workstation to the lowest priority, with a maximum queue bandwidth limit of 10% of the available 600kbps, the workstation is still uploading a nearly full speed.

However, if I make a change to the "Low" priority bandwidth settings, these settings are enforced globally. This tells me that all devices are being treated as low priority (which is the default) but I am unable to specify my workstation to have a higher priority at all.

I have tried retrograding to older firmwares incase it's a glitch in the current, but same result. It seems unlikely that a hardware faulty could cause a classification failure. More like that I have setup the WOS rule incorrectly, except I get the same result using ASUS's drag and drop priority method too.

Can you think of any other tests I could perform to confirm the QOS classification of one device is different to the others?

Have called and email ASUS customer support and had no response for week.

I also tried installing ASUSWRT-Merlin which removes the DSL function from the device, but I used a second ADSL modem connected as the WAN. Same result, I am unable to restrict or prioritise a specific device on my network, I can only restrict them all.

Could it be a hardware fault??
 
My understanding is that Traditional QOS is "broken" on all recent firmware versions (ASUS and RMerlin, which uses the same QOS source code). Make sure you're using the Adaptive QOS.
 
Nah, the adaptive won't work for my situation as the VPN uses HTTPS as does Netflix and Youtube and whatnot. With Adaptive I don't have a way to prioritise VPN traffic ahead of other HTTPS traffic.

I *think* I got somewhere last night. After trying multiple ASUSWRT firmwares and ASUSWRT-Merlin, I think installed DD-WRT which installed successfully but I couldn't get one the LAN sockets to work as a WAN socket. Gave up on that and flashed back to the latest ASUSWRT.

Then Traditional QOS started working properly!!!

I now have the workstation traffic successfully classified as "highest" and I can prove the classification works by reducing the "highest" queue's bandwidth to a max of 10% and it slows right down while the other devices remain unaffected.

Weird, but I'll take it.
 

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