[giudi]

Dear all,
I would like to use this alternative firmware but I have performance problem in 5GHZ wifi, I explain:
with the original Netgear firmware I have a maximum transfer speed of 1733Mbs in wifi in 5GHZ, I have a 1GB fiber connection and I arrive at 922Mbs downloading in wifi.
With the firmware ddwrt, last released, I tried to set any setting but I never get to this speed, if I remember correctly the maximum was 500-600Mbps at most.
Rollback with original Netgear full speed firmware.

Someone with the same problem as me who can help me set options?
I've already tried the recommended ones but nothing...

thank you in advance

[egc]

Welcome to the forum.

Unfortunately you are posting in the wrong forum.
As you are new I will transfer this thread.

To get the best out of DDWRT and the forum, read and follow the forum guidelines:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
Please carefully read and follow the forum guidelines.

If you follow the forum guidelines you will be directed to the R7800 setup guide also with links to wireless settings:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614

Last build can mean a lot you have to be more specific.

For me the last build is 44863

[ho1Aetoo]

with which client do you reach 922Mbit?

below optimal circumstances I reach with dd-wrt 850-950Mbit on the R7800

but is a pure measurement between the client and the router (iperf3 runs on the router cpu)

is therefore a relatively senseless measurement because it is not realistic

when I do a WLAN <-> LAN measurement I have never reached 1Gbit
there is with my setup at ~800Mbit the end of the flagpole reached (stable 750mbit)

with 95% CPU load

i think that's all the r7800 will do without proprietary NAT ,network accelerators, WLAN chip offload

in addition, it achieves the link rate of 1733Mbit only at short distance and max 1 wall
is the distance a bit longer and several walls in the game you can reach a maximum of 1000Mbit link rate (and with this link rate you can't reach a gigabit throughput)

let me know when you have found the solution to the problem, I've been trying to squeeze more out of the r7800 for ages

[giudi]

hi,
yes, i'm surprise about same speed from lan cable and wifi with this "Old" router, so, my client is Dell Latitude 5310 with Intel Wi-Fi 6 AX201 2x2 802.11ax da 160 MHz + Bluetooth 5.1
With my old laptop, dell 5280 max wifi speed was 680Mbps, with this 922Mbps from speed test ookla with original netgear firmware. With ddwrt, 500-600 max
Damn

[msoengineer]

If you turn on shortcut forward engine on the main setup tab you should be able to get more speed, albeit without any qos.... if it's speed you want you'll have to go without qos.

[ho1Aetoo]

[ho1Aetoo]

So I have now also tested the Netgear stock firmware

VHT80 4x4 single stream
(QCA9984 <-> QCA9984)

download

[ 5] 28.00-29.00 sec 112 MBytes 935 Mbits/sec

upload

[ 5] 43.00-44.00 sec 112 MBytes 944 Mbits/sec 0 2.11 MBytes


damn

WLAN <-> LAN measurement

[ho1Aetoo]

i am testing an openwrt build with NSS core support


VHT80 4x4
(QCA9984 <-> QCA9984)

Download

[SUM] 1120.00-1121.00 sec 111 MBytes 934 Mbits/sec

Upload

[SUM] 27.00-28.00 sec 111 MBytes 933 Mbits/sec

[ho1Aetoo]

so I continue testing

v3.0-r44719 std (11/04/20)

r7800 QCA9984 <---> QCA9984

[egc]

Very interesting, thanks for all your work.

[ho1Aetoo]

yes, it must be possible to get 1Gbit (rock solid) out of the link somehow

the chipset can definitely do it as you can see

you have to connect it to a fast CPU with 10Gbit NIC's, and you will get more than 950Mbit out of it

[tatsuya46]

[ho1Aetoo]

should be enough, I have seen peek ~130MB/sec (1.04 Gbit/s)


but that was between the r7800 and the x86

[ho1Aetoo]

with the receive queue >1000 the R7800 manages almost 1Gbit

the only question is why the dd-wrt default is set to 120

for most linux distributions 1000 is the default value

I can speak of luck that I have looked in egc's guide
alone I wouldn't have had the idea

now the thread creator would have to test again

[BrainSlayer]