Wireless constant disconnects

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jezatwork
Posts: 2
Joined: Thu Dec 01, 2011 8:53 pm

Wireless constant disconnects

Post by jezatwork » Fri Dec 02, 2011 8:26 am

Hi,

I am getting constant wireless disconnects with my 7800N. It connects ok but as soon as you start transferring files it disconnects, then reconnects (sometimes unsucccessfully and I have to disable the wifi card and reanable). It states connected on Windows 7 but stuck at identifiying. I can be 5ft away or at the other end of the house (signal strength is 4/5 minimum). This doesn't ever happen on the wireless at work or at a colleagues house.

Its become a problem as I have to upload to an FTP server daily which I cannot overwrite files on, and when it disconnects, half a file is left on the FTP and I have to rename it and send it again, (and again sometimes).

All cable connections are working perfectly with no issues. I confirm I am running the latest UK firmware 1.6e

billion_fan
Posts: 5294
Joined: Tue Jul 19, 2011 4:30 pm

Re: Wireless constant disconnects

Post by billion_fan » Fri Dec 02, 2011 10:19 am

Have you tried the normal stuff?

1. After a firmware upgrade reset back to factory default settings?
2. Do not restore settings from previous firmware builds.
3. Did the issue occur with older firmware?
4. Have you tried to change the wireless channels?
5. Have you tried to change the channel width?

Thanks

Tomken
Posts: 467
Joined: Tue Jul 26, 2011 10:31 am
Location: Co Durham

Re: Wireless constant disconnects

Post by Tomken » Fri Dec 02, 2011 11:36 pm

What is your Downstream SNRM showing as and what is your Downstream Attenuation ?

If you wire up and log into the router, then enter 192.168.1.254/snr.html this will take you to the tweaking page.

While -1 is the default setting, you can enter 150 to increase the SNRM by 3dB, 200 will increase it by 6dB, as backing off your profile should give better stability.

As it appears to be a wireless issue, suggest you go into Device Manager and uninstall the wireless driver then reboot, Windows will auto reinstall.

Do not tick the box to include the software, otherwise you will have to go to the main website for a full fresh install.

Alternatively and worthwhile, download and run this free tool to check for manufacture's driver updates http://www.devicedoctor.com/device-doctor-download.php

Prior to checking which channel is the best, download and run this free tool http://www.metageek.net/products/inssider/ it will show you who else is nearby and ideally, you should set the wireless channel 3 away from the nearest.

The RSSI value you should try to attain is approx -50dB as this will be the strongest signal for you, although other channels may work equally as well.

Tomken
Posts: 467
Joined: Tue Jul 26, 2011 10:31 am
Location: Co Durham

Re: Wireless constant disconnects

Post by Tomken » Sun Dec 04, 2011 4:59 pm

In addition to the above, has the old ringer wire been removed from terminal 3 in the master socket and any extensions.

You only need connections to 2 & 5 as the ringer wire can act as an antenna and cause interference to wifi.

This can be checked by removing the faceplates from the sockets.

Is your router connected to the master socket or are you using a phone extension, as the latter can cause problems it's always best to connect to the master socket.

A High Speed ADSL RJ11 to RJ11 cable to connect the router to the master socket, can also be beneficial in dealing with connectivity problems and could increase your bandwidth.

jezatwork
Posts: 2
Joined: Thu Dec 01, 2011 8:53 pm

Re: Wireless constant disconnects

Post by jezatwork » Mon Dec 05, 2011 7:42 pm

Hi,

Did a fresh install of Win7 as just changed to a SSD and tried both latest and previous drivers from intel's website (have Centrino Advanced-N 6230) which made no difference.

I then ran inSSIDer and it showed others on 1,5,6,9 and 11. It was originally set on 13 but have changed it now to 3. The RSSI is now exactly -50.

So far it seems a lot more stable, downloaded 105mb from the FTP with no issues whatsoever

Thanks Tomken, your suggestion seems to have worked!

Tomken
Posts: 467
Joined: Tue Jul 26, 2011 10:31 am
Location: Co Durham

Re: Wireless constant disconnects

Post by Tomken » Mon Dec 05, 2011 9:31 pm

Glad you got that sorted and hoping that it remains stable.

Changing channels, as billion_fan suggested is part of the SOP diagnostics, using inSSIDer eliminates the trial and error which can be time consuming.

Tom

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