AC86 gigabit speed

[Wired]

Can this router attain gigabit speeds? Recently upgraded and the best I'm able to pull down is 560 connected through Ethernet. All cabling is cat-6, computer has broadcom gigabit adapter. Provider came out and did a line test and could pull 950 down so something is throttling at my end just can't figure out ehar!

Im not using QOS, or AiProtection. Have tried with jumbo frames on/off no diffrrence. What else should I consider or check?

 

[CaptainSTX]

Can this router attain gigabit speeds? Recently upgraded and the best I'm able to pull down is 560 connected through Ethernet. All cabling is cat-6, computer has broadcom gigabit adapter. Provider came out and did a line test and could pull 950 down so something is throttling at my end just can't figure out ehar!

Im not using QOS, or AiProtection. Have tried with jumbo frames on/off no diffrrence. What else should I consider or check?

Have you run any tests across your LAN? Just because a PC has a gigabit LAN port doesn't mean it has the hardware to upload or download at those speeds. What processor does your PC have, how much RAM in the PC and what type of HD does your PC have?

 

[Wired]

Don't think I've ever ran any test across the LAN. PC is an AMD II X4 w/6g RAM. HD is a seagate 1TB. If it makes a difference when I run a speedtest from the router it gets around the same if not lower.

 

[John Davis]

There was a post on here the other day with someone experiencing issues between their desktop’s lan port and and the switch built into the ac86u - resolution ended up being to disable all the ‘green’ features on the ac86u switch chip (eee, eapd etc).

The ac86u can absolutely definitely deliver gigabit speeds on wired connections - so refer to that thread for how to test whether the issue is your pc’s connection to the ac86u’s switch, or the actual uplink from the router to your ISP

 

[John Davis]

And the Speedtest built in to the ac86u is useful for troubleshooting - but you end up limited by the ac86u cpu at about the 500mbit mark.

 

[Wired]

And the Speedtest built in to the ac86u is useful for troubleshooting - but you end up limited by the ac86u cpu at about the 500mbit mark.

Good to know. I’ll look for that thread though. Thanks

 

[John Davis]

if you're running asuswrt merlin on the ac86u you can install iperf3 via entware, and then you can properly test the link speed between your desktop and the ac86u using the windows build of iperf3

you'll still run into cpu limits on the ac86u, but should be able to hit ~800mbit/s

C:\Users\j\Desktop\iperf3_64>iperf3.10.1.exe -c 192.168.1.1 -B 192.168.1.5 -R
Connecting to host 192.168.1.1, port 5201
Reverse mode, remote host 192.168.1.1 is sending
[  5] local 192.168.1.5 port 55452 connected to 192.168.1.1 port 5201
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec   101 MBytes   851 Mbits/sec
[  5]   1.00-2.00   sec   101 MBytes   845 Mbits/sec
[  5]   2.00-3.00   sec   101 MBytes   850 Mbits/sec
[  5]   3.00-4.00   sec   101 MBytes   845 Mbits/sec
[  5]   4.00-5.00   sec  95.1 MBytes   798 Mbits/sec
[  5]   5.00-6.00   sec  99.5 MBytes   834 Mbits/sec
[  5]   6.00-7.00   sec  95.0 MBytes   797 Mbits/sec
[  5]   7.00-8.00   sec  96.6 MBytes   810 Mbits/sec
[  5]   8.00-9.00   sec  99.6 MBytes   836 Mbits/sec
[  5]   9.00-10.00  sec   101 MBytes   843 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.01  sec   991 MBytes   831 Mbits/sec  225             sender
[  5]   0.00-10.00  sec   991 MBytes   831 Mbits/sec                  receiver


iperf Done.

 

[Wired]

Don’t think I have entware, just the amtm that’s built in. But I’ll check

 

[John Davis]

Don’t think I have entware, just the amtm that’s built in. But I’ll check

amtm lets you install entware ( you need a usb drive plugged in for it though ) - and once you've got entware you can install iperf3 via 'opkg install iperf3'

windows builds of iperf3 on iperf.fr are miles out of date ( 2016 ) - I use the winx64 build of 3.10.1 from here https://www.neowin.net/forum/topic/1234695-iperf-3101-windows-build/page/3/

 

[Wired]

ok, think I found the right thread. In ssh did pwrctl config and disabled 3 of the options but when I rebooted and checked they had turned back on. I'm working on the entware, had to reformat the usb drive. Let you know when it's done and I can run the iperf

 

[John Davis]

If you want those powerctrl options to persist you’ll need to add your own script to do it - on reboot they reset to the defaults

 

[Wired]

got iperf on the router and workstation. What switches to I run on the router to make it accept connection?

 

[John Davis]

on one end you just need ‘iperf3 -s’ to start it in server mode - on the other end you need ‘iperf3 -c serverIPaddress’ to test as a client against the server running at that IP

since you’re likely to know your routers ip (prob 192.168.1.1) it’s probably easiest to make the ac86u the server and the pc the client

you can also add -R (note case does matter) on the client to reverse the test direction - you should see slightly higher speeds with the ac86u sending as opposed to receving just because it’s slightly easier on the cpu

 

[Wired]

Here's what I get


[ 4] local 192.168.5.47 port 53732 connected to 192.168.5.1 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 105 MBytes 882 Mbits/sec
[ 4] 1.00-2.00 sec 112 MBytes 938 Mbits/sec
[ 4] 2.00-3.00 sec 109 MBytes 916 Mbits/sec
[ 4] 3.00-4.00 sec 109 MBytes 914 Mbits/sec
[ 4] 4.00-5.00 sec 108 MBytes 908 Mbits/sec
[ 4] 5.00-6.00 sec 110 MBytes 921 Mbits/sec
[ 4] 6.00-7.00 sec 110 MBytes 927 Mbits/sec
[ 4] 7.00-8.00 sec 110 MBytes 920 Mbits/sec
[ 4] 8.00-9.00 sec 107 MBytes 895 Mbits/sec
[ 4] 9.00-10.00 sec 112 MBytes 940 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-10.00 sec 1.07 GBytes 916 Mbits/sec sender
[ 4] 0.00-10.00 sec 1.07 GBytes 916 Mbits/sec receiver

iperf Done.

 

[John Davis]

Means whatever is causing your speed drop isn’t5 your pc’s NiC

running Speedtest on the ac86u itself ( on the quos page ) to the same server you tested against on the pc what speeds do you get?

you checked on the tools page of the router that runner and flow cache are enabled ?

 

[Wired]

First one is from the router side, second from the pc. Checked, both runner and flow are enabled.

 

[CaptnDanLKW]

Yes, the hardware of the AC86U is capable as long as hardware acceleration is on. I current have a 600/10 connection and it barely breaks a sweat. I used my ISP's free 'trial' of gigabit (1G down / 25M Up) and it had no issues. Since went back down to previous speeds, not worth the extra $40/month. (I can get fiber with 1gb down AND 1gb UP - that might be worth it)

You will probably not get useful (or consistent) results using the internal speed test app in the router beyond a certain speed since the router app is CPU bound. For me 600 Down from the router's ISP test pushes the cores very hard.

 

[Wired]

Yes, the hardware of the AC86U is capable as long as hardware acceleration is on. I current have a 600/10 connection and it barely breaks a sweat. I used my ISP's free 'trial' of gigabit (1G down / 25M Up) and it had no issues. Since went back down to previous speeds, not worth the extra $40/month. (I can get fiber with 1gb down AND 1gb UP - that might be worth it)

You will probably not get useful (or consistent) results using the internal speed test app in the router beyond a certain speed since the router app is CPU bound. For me 600 Down from the router's ISP test pushes the cores very hard.

View attachment 35826
View attachment 35827

Have checked runner, and flow cache; both enabled. Even tried with Jumbo Frame enabled/disabled (no difference)

 

[heysoundude]

(I can get fiber with 1gb down AND 1gb UP - that might be worth it)

it is incomprehensible to me that all "wired" internet access isn't symmetrical like that, whatever the speed, as we're more than a third of a century into the existence of internet

 

[John Davis]

it is incomprehensible to me that all "wired" internet access isn't symmetrical like that, whatever the speed, as we're more than a third of a century into the existence of internet

depends on what’s being used to deliver the service - highly assymetric connections (like the 600/10) are common where it’s actually existing cabletv infrastructure being used rather than fibre.