D-Link 890L - Bad Wifi Speeds

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SpiryX
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Joined: 17 Mar 2016
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PostPosted: Thu Mar 17, 2016 10:40    Post subject: D-Link 890L - Bad Wifi Speeds Reply with quote
On default firmware I can get in tests at 400-500Mb/sec. With DD-WRT .....it is totally unstable not even going over 200.

I got my PC when it connects to it gets an 866mbps link and my laptop that gets and 433 link. Which is weird. Totally unstable.




Please help. I would love to keep the DD-WRT Software. Sad

Yes I keep the same SSID
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Ah-Pin-Kor
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PostPosted: Thu Mar 17, 2016 11:07    Post subject: Reply with quote
Which dd-wrt build are you using?
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Netgear R7000 - 29440M kongac
D-Link DIR-885L - 29440M kongac
D-Link DIR-890L - 29440M kongac
R6300v2 - 29300M (client bridge) || WNR3500Lv2 - advancedtomato 3.1-135
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SpiryX
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Joined: 17 Mar 2016
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PostPosted: Thu Mar 17, 2016 16:30    Post subject: Reply with quote
Firmware: DD-WRT v3.0-r29218 std (03/07/16)

The only stable connection is the WL1 which for me is usless. I need full speed of my internet. 150mpbs I can't do nothing with that sadly.

Also when I setup on wl0 and wl2 an AES encryption it all goes haywire. If I setup wl2 as in the tutorial is halfing my speed from my laptop to 250mpbs .

If I chose different SSID name. Well again the same issue. And the AC only have a very bad signal. It is so confusing.
SpiryX
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PostPosted: Fri Mar 18, 2016 6:50    Post subject: Reply with quote
bump? anyone can help me out please guys. Rolling Eyes
Ah-Pin-Kor
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Joined: 19 Sep 2015
Posts: 127

PostPosted: Fri Mar 18, 2016 7:04    Post subject: Reply with quote
I don't encounter instability when I was on 28598 for my 890L. You can try that one or Kong's R8000 build 29230M, which supports 890L now and is based on kernel 3.10.x.
_________________
Netgear R7000 - 29440M kongac
D-Link DIR-885L - 29440M kongac
D-Link DIR-890L - 29440M kongac
R6300v2 - 29300M (client bridge) || WNR3500Lv2 - advancedtomato 3.1-135
WRT54GS v1.1 - 26866 v24 std generic || WRT54G v2 - 14929 mini
Mussels
DD-WRT Novice


Joined: 22 May 2011
Posts: 5

PostPosted: Fri Mar 18, 2016 9:26    Post subject: Reply with quote
I've got no issues with high speeds on my DIR-890L.


I see that you're running 40MHz on the 5GHz, thats gunna halve your speeds.

heres screenshots of my settings:

5GHz N/AC. 280-300Mb on N. 867Mb sync + 29MB/s file transfer within 5M of router. (my NAS is not fast, could be NAS limiting the speeds)



my AC only channel. 780Mb same distance as the other 5Ghz.


my 2.4Ghz is dropped to 20Mhz as the long range 'stable' network, if you need higher speeds turn that up to 40Mhz.
SpiryX
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Joined: 17 Mar 2016
Posts: 6

PostPosted: Fri Mar 18, 2016 17:07    Post subject: Reply with quote
Thanks. I will play a bit with it. Hopefully I will enjoy my 500mbit fiber optic speed like I was doing on stock firmware.

Somehow the download gets killed. Yet the upload is perfectly fine!

http://beta.speedtest.net/result/5178751415
Mussels
DD-WRT Novice


Joined: 22 May 2011
Posts: 5

PostPosted: Sat Mar 19, 2016 0:11    Post subject: Reply with quote
SpiryX wrote:
Thanks. I will play a bit with it. Hopefully I will enjoy my 500mbit fiber optic speed like I was doing on stock firmware.

Somehow the download gets killed. Yet the upload is perfectly fine!

http://beta.speedtest.net/result/5178751415


do a local file transfer, wired to wifi instead. If you get full speeds that way, then your problem isnt the wifi settings, its somewhere else.

edit: and what the guy said below, see if ethernet works full speed too.


Last edited by Mussels on Sat Mar 19, 2016 0:47; edited 1 time in total
ddaniel51
DD-WRT Guru


Joined: 19 Feb 2013
Posts: 642

PostPosted: Sat Mar 19, 2016 0:44    Post subject: Reply with quote
Do you get 500mb through an ethernet port on the 890?
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SpiryX
DD-WRT Novice


Joined: 17 Mar 2016
Posts: 6

PostPosted: Sat Mar 19, 2016 11:17    Post subject: Reply with quote
I am sure the problem is somewhere in software. Because this is the results with simple settings on stock firmware: http://www.speedtest.net/my-result/4709726715
dedeaux
DD-WRT Novice


Joined: 10 Jan 2013
Posts: 11

PostPosted: Sun Mar 20, 2016 4:46    Post subject: Connection issues with older devices? Reply with quote
Mussels wrote:
I've got no issues with high speeds on my DIR-890L.


I see that you're running 40MHz on the 5GHz, thats gunna halve your speeds.

heres screenshots of my settings:

5GHz N/AC. 280-300Mb on N. 867Mb sync + 29MB/s file transfer within 5M of router. (my NAS is not fast, could be NAS limiting the speeds)



my AC only channel. 780Mb same distance as the other 5Ghz.


my 2.4Ghz is dropped to 20Mhz as the long range 'stable' network, if you need higher speeds turn that up to 40Mhz.


I have a few questions. I just installed the latest beta as I am trying to see the difference in DD-WRT over stock firmware.

First, I notice that you and the OP show your settings for WL0 and WL2. Is WL1 the same as one of those, or disabled for your case?

Second, do you have older devices connecting to your 890L? I have a couple tablets that see the router, with DD-WRT firmware and similar settings, but they won't connect. What would be a configuration that accommodates older devices connecting via wifi?

Finally, what's the benefit of a single SSID? Would it be best to use separate SSIDs, or use the same for each radio?
Mussels
DD-WRT Novice


Joined: 22 May 2011
Posts: 5

PostPosted: Sun Mar 20, 2016 7:57    Post subject: Re: Connection issues with older devices? Reply with quote
dedeaux wrote:

I have a few questions. I just installed the latest beta as I am trying to see the difference in DD-WRT over stock firmware.

First, I notice that you and the OP show your settings for WL0 and WL2. Is WL1 the same as one of those, or disabled for your case?

Second, do you have older devices connecting to your 890L? I have a couple tablets that see the router, with DD-WRT firmware and similar settings, but they won't connect. What would be a configuration that accommodates older devices connecting via wifi?

Finally, what's the benefit of a single SSID? Would it be best to use separate SSIDs, or use the same for each radio?


WL1 is 2.4GHz, which i mentioned i had dropped to slower speed settings to be compatible with older devices, my settings there would not help with speed, so they were irrelevant to the OP's problem.

I have 20Mhz 2.4GHz (slower speeds, reliable, used for low bandwidth devices like my wireless printer, and guest devices)
Wlan 0 is N/AC 5GHz (not all my AC devices can see the higher channel of Wlan2)
Wlan 2 is AC only, and where i stick my high performance devices (my phone, for file transfers to/from my NAS, and my gaming PC)

I use seperate SSID's as i want control over what devices are connected which lets me guarantee the speeds they'll get.
dedeaux
DD-WRT Novice


Joined: 10 Jan 2013
Posts: 11

PostPosted: Sun Mar 20, 2016 19:15    Post subject: Re: Connection issues with older devices? Reply with quote
Mussels wrote:

WL1 is 2.4GHz, which i mentioned i had dropped to slower speed settings to be compatible with older devices, my settings there would not help with speed, so they were irrelevant to the OP's problem.

I have 20Mhz 2.4GHz (slower speeds, reliable, used for low bandwidth devices like my wireless printer, and guest devices)
Wlan 0 is N/AC 5GHz (not all my AC devices can see the higher channel of Wlan2)
Wlan 2 is AC only, and where i stick my high performance devices (my phone, for file transfers to/from my NAS, and my gaming PC)

I use seperate SSID's as i want control over what devices are connected which lets me guarantee the speeds they'll get.


Cool. Thanks for the reply.
SpiryX
DD-WRT Novice


Joined: 17 Mar 2016
Posts: 6

PostPosted: Thu Mar 24, 2016 15:35    Post subject: Reply with quote
Yeah seems I have to go back to stock. Since low support on DD-WRT for 890L . I swear to god that it's pissing me off big time.

Constant disconnects & firmware crashes , low speeds , very unstable. Maybe I did some bad setups but I followed first the 890L Guide posted here and no change. Same instability. I refuse to keep my high bandwith capped because of bad software. Yeah stock firmware sucks , no options just plug & play. But at least it harness the true power of this router that is highly needed.

Thanks for those who tried to help me. I am not ungratefully just very frustrated. I can give you my skype if anyone want to help me out with this. But in few hours I'll start to rollback to stock.


Maybe i'll get back when I see more support for 890L. I hope it will be made on openwrt since I saw a lot of movement there and never disapointed me regarding it's stability. This was my first try on DD-WRT and ...it was a complete failure.


P.S: The only thing stable is "N". Whenever I get on AC/N or AC simple once I try to download something and hits 5-10Mbs second it kills the router instant and resets the AC's Wifi . Simple as that.

It's like it's alergic to high speeds.
Mussels
DD-WRT Novice


Joined: 22 May 2011
Posts: 5

PostPosted: Fri Mar 25, 2016 0:12    Post subject: Reply with quote
ftp://ftp.dd-wrt.com/betas/2016/03-22-2016-r29316/dlink-dir890l/


^ try the latest beta update from here?
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