Netgear R8000... Horrific 2.4MHz speeds

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bschuhma
DD-WRT Novice


Joined: 06 Apr 2017
Posts: 21

PostPosted: Wed Oct 18, 2017 14:11    Post subject: Netgear R8000... Horrific 2.4MHz speeds Reply with quote
Hi all,

Just upgraded a dead Archer C7 v2 running dd-wrt successfully (for 2 years) like I want it to a Netgear R8000. Here's my old situation, from another post I made recently:

Quote:
I have an Archer C7 v2, a 1700AC router, running DD-WRT v3.0-r33006 std (08/03/17). I'm running N-based cards in my Mac, one floor below the router, with an 80% link strength. The router is set for "Mixed" mode, though setting to N-only has no apparent effect on speed.

My ISP net connection is 300M up and down... hardwired at the router I can see this. Via wifi I get from 20M-50M up and down. I'm testing at beta.speedtest.net, FWIW.

This seems abysmal. I know I'm not going to get the full 300M via wifi, but the N standard is about 450M, isn't it? I would think I'd get 200-250M, not 10-20% of that. Does having the A band limit me to 50M? Like I said, setting to N only doesn't seem to help.



OK, so fast forward to now and my shiny new R8000... I grabbed the latest firmware for my model as of a couple days ago (10-10-2017-r33492). I've tried to reconfigure the new router like the old (same SSIDs, settings, etc.). I'm now getting 2-10MBs on the 2.4GHz side... far worse than my old, Archer C7 router.

FWIW, I've configured a new 5G (on wl0), and cannot even connect to it. The "dd-wrt" SSID is on wl2 (5G) and I can connect to THAT 5G SSID and I get about 90MBs on that one.

I'm totally at a loss to explain the horrible performance. FWIW, I have a range of 2.4Ghz devices around the house... Nest thermostats, some old laptops... could one of them be dragging down the performance of the router (i.e. lowest common denominator sinks the entire 2.4GHz spectrum)? I've left the router picking its own channel and checked that the channel isn't too crowded.

The new router is exactly in the same physical position as the last.

Anything seem off here? Suggestions gratefully accepted... I don't want to switch to Tomato or OpenWRT or anything - I have some scripts for parental controls I don't want to rewrite.


I'm not married to this router, if anyone has a better suggestion. The R8000 was +$10 from the R7800, so I got it instead. I'm not happy that the dd-wrt implementation for virtual interfaces don't have MAC include/exclude lists like the Archer C7 did... Only the physical interfaces have MAC lists in this version Sad .


Thanks,

Bret
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slidermike
DD-WRT Guru


Joined: 11 Nov 2013
Posts: 1487
Location: USA

PostPosted: Wed Oct 18, 2017 16:13    Post subject: Reply with quote
SNB router ranker has the R8000 ranked near the bottom of the router charts for 2.4ghz.
Mind you, this is based on performance using stock firmware so ddwrt performance may differ.

https://www.smallnetbuilder.com/tools/charts/router/view

As for DDwrt specific settings, post screen shots of your 2.4 configuration pages so we can see if there is room for improvement.

_________________
Router currently owned:
Netgear R7800 - Router
Netgear R7000 - AP mode

R7000 specific Tips/Tricks.
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=264152
jwh7
DD-WRT Guru


Joined: 25 Oct 2013
Posts: 2670
Location: Indy

PostPosted: Wed Oct 18, 2017 16:28    Post subject: Re: Netgear R8000... Horrific 2.4MHz speeds Reply with quote
bschuhma wrote:
R8000... I grabbed the latest firmware for my model as of a couple days ago (10-10-2017-r33492). I've tried to reconfigure the new router like the old (same SSIDs, settings, etc.). I'm now getting 2-10MBs on the 2.4GHz side... far worse than my old, Archer C7 router.

FWIW, I've configured a new 5G (on wl0), and cannot even connect to it. The "dd-wrt" SSID is on wl2 (5G) and I can connect to THAT 5G SSID and I get about 90MBs on that one.
I presume you reset after updating, then manually set up. First, try setting the wireless mode to NG-Mixed for 2.4 GHz. I've seen where using 'Mixed' or 'N-only' can cause the issue you describe. Also, keep your Advanced Wireless settings at default for now. Fwiw, the only settings I change are the N*-Mixed, Ack timing = 0, and Bluetooth Coexist = Preemptive, but the latter two may not exist on all models.
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bschuhma
DD-WRT Novice


Joined: 06 Apr 2017
Posts: 21

PostPosted: Wed Oct 18, 2017 17:59    Post subject: Reply with quote
@JWH7 - by reset do you mean the 30/30/30 reset? No, didn't do that. Do you advise that and reset everything (or take a backup of settings, do 30/30/30 reset, restore from backup)?

Thanks,

Bret
Alozaros
DD-WRT Guru


Joined: 16 Nov 2015
Posts: 6408
Location: UK, London, just across the river..

PostPosted: Wed Oct 18, 2017 20:54    Post subject: Reply with quote
bschuhma wrote:
@JWH7 - by reset do you mean the 30/30/30 reset? No, didn't do that. Do you advise that and reset everything (or take a backup of settings, do 30/30/30 reset, restore from backup)?

Thanks,

Bret


vat iz diz 30/30/30, diz iz tu olt doont do it, it coz oll sortz ov meszz
uzz diz inzted:

Telnet (or SSH) into 192.168.1.1
Issue commands:
erase nvram
reboot

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Atheros
TP-Link WR740Nv1 ---DD-WRT 55179 WAP
TP-Link WR1043NDv2 -DD-WRT 55303 Gateway/DoT,Forced DNS,Ad-Block,Firewall,x4VLAN,VPN
TP-Link WR1043NDv2 -Gargoyle OS 1.15.x AP,DNS,QoS,Quotas
Qualcomm-Atheros
Netgear XR500 --DD-WRT 55460 Gateway/DoH,Forced DNS,AP Isolation,4VLAN,Ad-Block,Firewall,Vanilla
Netgear R7800 --DD-WRT 55460 Gateway/DoT,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla
Netgear R9000 --DD-WRT 55363 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Broadcom
Netgear R7000 --DD-WRT 55460 Gateway/SmartDNS/DoH,AD-Block,Firewall,Forced DNS,x3VLAN,VPN
NOT USING 5Ghz ANYWHERE
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bschuhma
DD-WRT Novice


Joined: 06 Apr 2017
Posts: 21

PostPosted: Wed Oct 18, 2017 21:23    Post subject: Reply with quote
@slidermike - I made the changes you suggested. Things look a bit better - not great, but better. I'm seeing speeds in the 73Mbps range about 20 feet from the router, through a floor (office is in the basement, router at the other end of the garage above me ). Not horrible... but not 300Mbps and certainly doesn't feel like I'm getting my money's worth for a fairly expensive router Sad . I know I won't get 300 over wifi, but 150Mbps+ would be great!

I've attached pics of my setup.

Thanks for your time!!

Regards,

Bret
bschuhma
DD-WRT Novice


Joined: 06 Apr 2017
Posts: 21

PostPosted: Wed Oct 18, 2017 21:29    Post subject: Reply with quote
Thanks, @Alozaros. I did the 30/30/30 thing before I saw your reply. It actually had NO effect. Weird. I did, however, do the recommended Netgear "hold the reset button for 5 seconds" and the router did blow away all its configuration back to dd-wrt " out of the box " settings. I went ahead and did speed tests over and over, documenting things. All I changed was the network names (SSIDs) of wl0, wl1, and wl2. Wl1 is the 2.4GHz radio. The speeds when I'm about 5 feet from the router are reasonable (about 110Mbps), but even in the next room, maybe 20 feet away, the speeds are crap (20Mbps at most, and many tests in the 7-10Mbps).

Regards,

Bret
dbell68
DD-WRT Novice


Joined: 25 Aug 2017
Posts: 25

PostPosted: Wed Oct 18, 2017 22:20    Post subject: Reply with quote
I have an R8500 and Asus RT-AC66U.

In recent builds I think choosing a fixed channel for each radio instead of auto has generally given a better experience.
Malachi
DD-WRT Guru


Joined: 17 Jul 2012
Posts: 7209
Location: Columbus, Ohio

PostPosted: Wed Oct 18, 2017 22:49    Post subject: Reply with quote
Make the pictures smaller.
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buffpatel
DD-WRT User


Joined: 22 Feb 2011
Posts: 115

PostPosted: Wed Oct 18, 2017 23:04    Post subject: Reply with quote
I've been using an R8000 for a while and here are my 2.4GHz settings. Hopefully it will help, I don't know how to measure my wifi speeds however, so not sure how fast my performance actually is, but I've never noticed horribly slow speeds

NG-Mixed
Channel 1
Channel Width WideHT40
Extension Channel upper

Turn On Explicit and Implicit Beamforcing. Keep Wireless Broadcast and TurboQAM both on. Airtime Fairness off.

Hope that helps!
Sydney888
DD-WRT Novice


Joined: 25 Jan 2012
Posts: 9

PostPosted: Thu Oct 19, 2017 0:56    Post subject: Reply with quote
buffpatel wrote:
I've been using an R8000 for a while and here are my 2.4GHz settings. Hopefully it will help, I don't know how to measure my wifi speeds however, so not sure how fast my performance actually is, but I've never noticed horribly slow speeds

NG-Mixed
Channel 1
Channel Width WideHT40
Extension Channel upper

Turn On Explicit and Implicit Beamforcing. Keep Wireless Broadcast and TurboQAM both on. Airtime Fairness off.

Hope that helps!


What version?
Also have R8000 with v3.0-r31205M and 2.4Ghz is fine. Up for 147 days!!!
73Mbps down/29Mbps up when next to the router
2.4Ghz settings:-
Mixed mode
Auto channel
Channel width : 20Mhz
Enabled: Optimized Multicast, Turbo QAM.
Xeon2k8
DD-WRT Guru


Joined: 11 Feb 2016
Posts: 1288

PostPosted: Thu Oct 19, 2017 13:34    Post subject: Reply with quote
Sydney888 wrote:
buffpatel wrote:
I've been using an R8000 for a while and here are my 2.4GHz settings. Hopefully it will help, I don't know how to measure my wifi speeds however, so not sure how fast my performance actually is, but I've never noticed horribly slow speeds

NG-Mixed
Channel 1
Channel Width WideHT40
Extension Channel upper

Turn On Explicit and Implicit Beamforcing. Keep Wireless Broadcast and TurboQAM both on. Airtime Fairness off.

Hope that helps!


What version?
Also have R8000 with v3.0-r31205M and 2.4Ghz is fine. Up for 147 days!!!
73Mbps down/29Mbps up when next to the router
2.4Ghz settings:-
Mixed mode
Auto channel
Channel width : 20Mhz
Enabled: Optimized Multicast, Turbo QAM.

Auto channel is worst you can do. Scan surrounding APs and choose a channel far from the crowd. Channel width on 2.4 almost always is better 20mhz unless you live in the countryside.

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<Kong>
DD-WRT Guru


Joined: 15 Dec 2010
Posts: 4339
Location: Germany

PostPosted: Thu Oct 19, 2017 15:36    Post subject: Reply with quote
bschuhma wrote:
@slidermike - I made the changes you suggested. Things look a bit better - not great, but better. I'm seeing speeds in the 73Mbps range about 20 feet from the router, through a floor (office is in the basement, router at the other end of the garage above me ). Not horrible... but not 300Mbps and certainly doesn't feel like I'm getting my money's worth for a fairly expensive router Sad . I know I won't get 300 over wifi, but 150Mbps+ would be great!

I've attached pics of my setup.

Thanks for your time!!

Regards,

Bret


At least on my build I measured 220Mbps real throughpout on 2.4Ghz, thus don't know what your issue is.

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Alozaros
DD-WRT Guru


Joined: 16 Nov 2015
Posts: 6408
Location: UK, London, just across the river..

PostPosted: Thu Oct 19, 2017 16:36    Post subject: Reply with quote
bschuhma wrote:
@slidermike - I made the changes you suggested. Things look a bit better - not great, but better. I'm seeing speeds in the 73Mbps range about 20 feet from the router, through a floor (office is in the basement, router at the other end of the garage above me ). Not horrible... but not 300Mbps and certainly doesn't feel like I'm getting my money's worth for a fairly expensive router Sad . I know I won't get 300 over wifi, but 150Mbps+ would be great!

I've attached pics of my setup.

Thanks for your time!!

Regards,

Bret


Wi-Fi speed also depends on you WiFi clients , thickness of those walls,
settings, distance and power......

for 2,4Ghz use this settings:
country domain Canada or Haiti
channel 11 + lower at 40HT
NG mixed
Short GI
Short Preamble
Protection Mode none
RTS Threshold disabled
airtime fairness is off
also use AES WPA2 WiFI security all the rest are not that good for high speeds
i don't use any of those beam forming implicit/explicit

i do not use 5GHz as i don't need it but in general it provides a better Wi-Fi speeds but lower range than 2,4Ghz

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Atheros
TP-Link WR740Nv1 ---DD-WRT 55179 WAP
TP-Link WR1043NDv2 -DD-WRT 55303 Gateway/DoT,Forced DNS,Ad-Block,Firewall,x4VLAN,VPN
TP-Link WR1043NDv2 -Gargoyle OS 1.15.x AP,DNS,QoS,Quotas
Qualcomm-Atheros
Netgear XR500 --DD-WRT 55460 Gateway/DoH,Forced DNS,AP Isolation,4VLAN,Ad-Block,Firewall,Vanilla
Netgear R7800 --DD-WRT 55460 Gateway/DoT,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla
Netgear R9000 --DD-WRT 55363 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Broadcom
Netgear R7000 --DD-WRT 55460 Gateway/SmartDNS/DoH,AD-Block,Firewall,Forced DNS,x3VLAN,VPN
NOT USING 5Ghz ANYWHERE
------------------------------------------------------
Stubby DNS over TLS I DNSCrypt v2 by mac913
Malachi
DD-WRT Guru


Joined: 17 Jul 2012
Posts: 7209
Location: Columbus, Ohio

PostPosted: Thu Oct 19, 2017 16:42    Post subject: Reply with quote
Don't use 40HT on the 2.4ghz unless you have no neighbors at all. Don't be one of those inconsiderate people.
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