[twiclo]

I'm running DD-WRT v3.0-r41686 std (12/10/19) on my Linksys WRT1900ACS. When I plug directly into any of the lan ports and run a speedtest from the laptop directly to the router I only get about 11MB/s. I've tried all ports and multiple different cables.

Am I missing some setting in DDWRT or is this a bug in the build I'm running?

Btw this is the command I'm running for the speedtest

[kernel-panic69]

A better test would be to use iperf. FWIW, I averaged about 5.22MB/s from a dinosaur 13" macbook running Debian 10 to my R7000 running FreshTomato. I don't see how you're connected at 100MB/s unless there is an issue with the cable, or the NIC is configured for that speed, etc., or the NIC is not gigabit.

[twiclo]

I'm not concerned with the test. Using the same command I'm able to get 100MB/s from machine to machine. It's not a problem with the nic on the laptop. It's capable of 100MB/s and has been tested. The LAN port on the router IS 100MB/s.

It is very clearly an issue with DDWRT.

[kernel-panic69]

Yes, a router is a PC. Most definitely. Yes, I am being sarcastic. I presume your machine NICs are 100MB/s fast ethernet and not gigabit. That junk macbook is gigabit. FWIW, average for the same test on my E4200v1 running the latest public beta of DD-WRT was around 850-900KB/s. I still suggest to try setting up an iperf client or server on the router or a machine and then client on the other and test throughput that way for giggles. You have nothing to lose.

[ho1Aetoo]

[kernel-panic69]

[ho1Aetoo]

he can also easily measure the transferrate with iperf3
that's what it is intended for and it is definitely installed on the router

[twiclo]

Devices that are hardwired get worse transfer speeds than those on the wifi

Whatever slow down speed may happen over ssh (even though I'm sure that's not a thing) it absolutely wouldn't slow things down by a factor of 10

Computer to computer tests show 100Mb/s but computer to computer through the router are 11MB/s

Please, for the love of God, stop trying to blame something I've already ruled out. What's the next thing I need to look at?

[ho1Aetoo]

i'm not sure if you understand it but the test is "bullshit" so you measure the ssh transmission rate
what are you doing over ssh? any permanent tunnels running?
as I said, you can measure the real transfer rate between two devices with iperf3
I won't go into the worse ssh performance now, but ssh is encrypted and is usually only used for administration

[twiclo]

I already have measured transfer rates that's what lead me to also try the ssh test. I've done file transfers from computer to computer and router to computer both wired and over WiFi

I promise you there is a problem with ddwrt

[twiclo]

At the end of the day this is what I know

Transfer speeds are normal when plugging two computers into a switch

Transfer speeds are 1/10th what they should be when plugging two computers into the router

[ho1Aetoo]

OK

Where is the problem then?
Such an iperf3 test is done in 5min

start the server on the router

iperf3 -s

start the client on the PC

iperf3 -Rc 192.168.1.1 -P 12 -t 30

this takes a few minutes and then you can see the actual transferrate between router and PC (100/1000Mbit)

[twiclo]

I won't be able to do this for another 12 hours and I'd rather have us look into other issues in the mean time. Not only have I ran multiple different tests using different methods I've proven that there's nothing wrong with the SSH test. But the most important thing is this argument couldn't be farther from relevant

If you can't get off this topic just stop posting. You're being incredibly unhelpful

[twiclo]

Forgot I could just do this over SSH. Here you go. Still showing the same speeds the ssh test did

[ho1Aetoo]

it shows 941Mbit throughput = linkspeed 1Gbit