WNDR3700V4 slow wifi problem

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KitsuneFoxie
DD-WRT Novice


Joined: 10 Jun 2017
Posts: 10

PostPosted: Mon Feb 26, 2018 15:43    Post subject: WNDR3700V4 slow wifi problem Reply with quote
I have this router, and it currently being used as an access point. I have tried DDWRT firmware, but it seems to cause the router to slow down even more.

Right now it's on stock firmware. The wifi is really quite slow for what it used to be I only get 20 - 45mbps on the 2.4ghz network and 50/65 on the 5ghz.. I've 30/30/30 and erased nvram. )sometimes the 5ghz stops broadcasting if i change something related to it)

But, anyway, It's on default settings, 20/40 for 2.4 and 40 for 5ghz. It says up to "300mbps" and i know thats theoretical speeds. It's on different channels to the r7800 downstairs which gives out the full speed (because its newer of course)

Nothing i seem to do helps get the access point to 60 atleast on 2.4 20 or 40mhz. The 5ghz will sometimes push past it. it seems the co existence setting is missing on the v4 though.

If anyone knows why this router is prtty much struggling to push out a decent wireless speed, or anyone can offer advice, I'd be greatful!

Here're some screenies from the wireless pages of both routers.. (power is at 50, so not to interfere too much with the other router)

Maybe it's the firmware? I remember before updating it from an older firmware it was quite fast.
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KitsuneFoxie
DD-WRT Novice


Joined: 10 Jun 2017
Posts: 10

PostPosted: Mon Feb 26, 2018 16:52    Post subject: Reply with quote
I was also wondering, if i went back to DDwrt, what version is better for this router. Newer revisions dont really do much for it.
bushant
DD-WRT Guru


Joined: 18 Nov 2015
Posts: 1409

PostPosted: Mon Feb 26, 2018 19:01    Post subject: Reply with quote
this might be worth a look:
    https://dd-wrt.com/wiki/index.php/QCA_wireless_settings

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mrjcd
DD-WRT Guru


Joined: 31 Jan 2015
Posts: 5322
Location: Texas

PostPosted: Tue Feb 27, 2018 9:58    Post subject: Re: WNDR3700V4 slow wifi problem Reply with quote
KitsuneFoxie wrote:
if i went back to DDwrt, what version is better for this router.

r33555 and you should also read link from bushant
https://dd-wrt.com/wiki/index.php/QCA_wireless_settings

http://mrjcd.com/junk/dd-wrt/WNDR3700v4/r33555/
KitsuneFoxie
DD-WRT Novice


Joined: 10 Jun 2017
Posts: 10

PostPosted: Tue Feb 27, 2018 22:29    Post subject: Reply with quote
Thanks to the both of you.
For those who have the WNDRv43700
What sort of performance at maximum has it been able to give wirelessly?

Also is there any sort of "special" thing that needs or could be enable for the v4?
tatsuya46
DD-WRT Guru


Joined: 03 Jan 2010
Posts: 7365
Location: YWG, Canada

PostPosted: Tue Feb 27, 2018 22:58    Post subject: Reply with quote
nat performance from the cpu matters too..for "internet wifi" for local wifi speeds maxes are attainable easy when setup properly. (140-170mbps for 2.4ghz, 180-210mbps for 5ghz 2x2:2)
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[x86_64] Haswell i3-4150/QCA9984/QCA9882 ----> DD-WRT v3.0-r44474 std
[QUALCOMM] DIR-862L ------------------------------> DD-WRT v3.0-r44467 std
[QUALCOMM] WNDR4300 v1 ------------------------> DD-WRT v3.0-r44467 std
[QUALCOMM] DIR-862L ------------------------------> DD-WRT v3.0-r44467 std
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[BROADCOM] DIR-860L A1 --------------------------> DD-WRT v3.0-r44251 std


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KitsuneFoxie
DD-WRT Novice


Joined: 10 Jun 2017
Posts: 10

PostPosted: Wed Feb 28, 2018 1:03    Post subject: Reply with quote
Thank you tatsuya.
I am still on the netgear firmware for now.

when i switch i'll try to set it up properly according to the QCA.
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