Wireless Connection Dropping Frequently, But Briefly

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PatientGoogol
DD-WRT Novice


Joined: 04 Nov 2017
Posts: 4

PostPosted: Sat Nov 04, 2017 23:39    Post subject: Wireless Connection Dropping Frequently, But Briefly Reply with quote
Caveats: Since this issue is only affecting one of my devices I believe it is likely a NIC card issue with my laptop. I have posted something similar in the Dell Networking forums, but I was hoping that someone here might have some advice. I apologize if this is not proper behavior here.

Symptom: Randomly, but around every ten minutes the wireless connection to my router drops out. This lasts for anywhere from 5 to 10 minutes before reconnecting. No action on my part is required to make this happen.

Analysis: I have never seen this behavior on this machine from any other network. Additionally, this problem does not affect any other device on this network. During the periods of disconnection the wireless network does not appear as an available network (like no SSID is being broadcast) while the other networks in my area do appear. If I use any other device to scan for networks at these times they will find my network and connect as usual.

Attempted Resolution: I have reinstalled several versions of the NIC driver. The version listed below was downloaded from the Dell website as the recommended version. I have tested several different router configurations changing the wireless mode, security, and encryption options, but none of those had any noticeable effect.

Router:
Model: Linksys E1200 v1
Firmware Version: DD-WRT v24-sp2 (05/27/13) mini - build 21676
Kernel Version: Linux 2.6.24.111 #15401 Mon May 27 02:21:37 CEST 2013 mips

Laptop:
Model: Dell Precision M4800
OS: Windows 10 (All updates installed)

NIC:
Model: Intel® Dual Band Wireless-AC 7260
Driver Version: 18.33.3.2

Thanks to everyone for all of your support.
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derickso
DD-WRT Novice


Joined: 17 Jan 2008
Posts: 17

PostPosted: Sun Nov 05, 2017 15:55    Post subject: Reply with quote
You are on a very very old build, try seeing if there is a newer DDWRT build for your device and see if that fixes it.
PatientGoogol
DD-WRT Novice


Joined: 04 Nov 2017
Posts: 4

PostPosted: Sun Nov 05, 2017 16:08    Post subject: What/where would that be? Reply with quote
I have searched all over, but eventually wind up on this page:

https://www.dd-wrt.com/wiki/index.php/Linksys_E1200

where the build I am using is linked. If there is a newer build how would I figure that out?

Determining the correct and most current build is the most confusing part of this process.
flakie
DD-WRT User


Joined: 23 Sep 2017
Posts: 99
Location: Swindon, UK

PostPosted: Sun Nov 05, 2017 16:16    Post subject: Reply with quote
see if there is a build here:

ftp://ftp.dd-wrt.com/betas/2017/

_________________
Router Model: Netgear R7800
Firmware Version: DD-WRT v3.0-r33770M kongat (11/15/17)
Modem: SuperHub 3
ISP: Virgin Media 100/6 Mbps
OpenVPN Client (IPVanish): 98/5.5 Mbps (best test result)
PatientGoogol
DD-WRT Novice


Joined: 04 Nov 2017
Posts: 4

PostPosted: Sun Nov 05, 2017 16:26    Post subject: Thanks for the link, but no go Reply with quote
I traversed all 27 sub-directories there and did not find my router listed.

I'm guessing that I'm SOL.
flakie
DD-WRT User


Joined: 23 Sep 2017
Posts: 99
Location: Swindon, UK

PostPosted: Sun Nov 05, 2017 16:38    Post subject: Re: Thanks for the link, but no go Reply with quote
PatientGoogol wrote:
I traversed all 27 sub-directories there and did not find my router listed.

I'm guessing that I'm SOL.


did you check the broadcom folders

_________________
Router Model: Netgear R7800
Firmware Version: DD-WRT v3.0-r33770M kongat (11/15/17)
Modem: SuperHub 3
ISP: Virgin Media 100/6 Mbps
OpenVPN Client (IPVanish): 98/5.5 Mbps (best test result)
PatientGoogol
DD-WRT Novice


Joined: 04 Nov 2017
Posts: 4

PostPosted: Sun Nov 05, 2017 17:05    Post subject: Reply with quote
Thanks for the tip. I hadn't, but I have now and the result was the same. I will look anywhere else you point, but I don't have much hope left.

But as I mentioned in my OP this is only happening on one device so my spider sense tells me that the real solution will be found on the client side.
FillDee
DD-WRT Novice


Joined: 15 Jun 2014
Posts: 25

PostPosted: Sun Nov 05, 2017 19:16    Post subject: Reply with quote
PatientGoogol wrote:
Thanks for the tip. I hadn't, but I have now and the result was the same. I will look anywhere else you point, but I don't have much hope left.


The install guide that you linked to says this :

Quote:
To find the latest builds, you can browse the DD-WRT file server and look for the broadcom_K26 folder, in there is the appropriate for your unit. Be aware that these are beta test builds and should be used with caution!


I checked a few folders and there is Broadcom_K26 folder in each that has the build for the E1200 V1.

This is the latest. Up to you if you go that high...

ftp://ftp.dd-wrt.com/betas/2017/11-04-2017-r33679/broadcom_K26/
ddaniel51
DD-WRT Guru


Joined: 19 Feb 2013
Posts: 1082

PostPosted: Sun Nov 05, 2017 20:42    Post subject: Reply with quote
Sounds like your Dell goes roaming for a better connection every so often. Not a lot you can do to the router to stop it if it's configured in the Dell that way.

You do have the router wifi assigned a fixed channel right?

_________________
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droid-I
DD-WRT User


Joined: 10 Oct 2014
Posts: 97

PostPosted: Tue Nov 07, 2017 10:14    Post subject: Reply with quote
In the Properties->Advanced tab of your laptop Wireless there may well be some parameter
that you can adjust for better connection reliability. e.g. Roaming Aggressiveness and or
some other parameter combo, you have to try it out.

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