Reduced routing speed on RT-AX53U

[Cranberry]

Hello everyone,

I’m currently running OpenWRT version 24.10.2 on ASUS RT-AX53U router, I have a 1 Gbps speed and was getting around 950 Mbps when performing a speed test.

For the last couple of months I’ve been experiencing a speed decrease in nearly 40% from 930 - 950 to around 550 - 580.

I tried to find out what’s causing the problem, so I connected my laptop directly to the modem with an ethernet cable and got the maximum speed (around 950 Mbps), then I’ve connected the router to the modem again and connected my laptop to the router with an ethernet cable, then I performed a reset to the router through Luci flash operations, without making any changes in the Luci interface I’ve performed a speed test again and got internet speed around 550 - 580.

I think the problem started after upgrading the firmware to 24.10, after I upgraded even the latest version didn’t fix the problem.

Is there anything else I can do to fix this ?

Thanks

[ncompact]

@Cranberry

Is there anything else I can do to fix this ?

It depends on how many services this router is running. Are you noticing high CPU usage?

Have you read this:

OpenWrt support for Asus RT-AX53U

Hi, @marceli : never run iperf3 on the router itself, you can do that if your router is a a powerful x86_64 but on all socs the result of doing this is something like: [SUM] 0.00-10.00 sec 621 MBytes 521 Mbits/sec sender [SUM] 0.00-10.00 sec 613 MBytes 514 Mbits/sec receiver because: [image] For information: There is a new patch on the snapshots about routing perf between lan and wan: To summerize: before: slow routing lan <-> wan but f…

[OpenWrt Wiki] ASUS RT-AX53U / RT-AX1800U

[frollic]

and have you enabled hw offloading ?

[egc]

Enable off loading on Firewall tab and see if that helps

Furthermore things which might help are irqbalance and packet_steering

[brada4]

irqbalance does not balance on ramips…. one has to re-measure at 3 possible steering levels.

[Cranberry]

The problem occurs even when the router is after a clean reset, no services installed.

The CPU looks fine.

[Cranberry]

@frollic

hw offloading

Flow offloading type is currently set to None.

[Cranberry]

Seems like setting Flow offloading type to Software flow offloading resolved the problem, Thank you !

[brada4]

Firs in network/interfaces/global repeat measurement at 3 packet steering levels, then with the best of them go through offload levels.