Intel wireless cards dropping connections: a possible fix?

ubuysa

The BSOD Doctor
The Intel Centrino Wireless-N 135 in my Optimus IV has suffered from what seems to be a fairly common problem with Intel wireless cards; it randomly drops the connection and then reconnects again. On my Optimus it will do this only a couple of times a day but often it will do it two or three times in a row. I probably wouldn't have noticed except that we stream ClassicFM all day and we loose the connection when the wifi connection drops and reconnects.

Problems like this are a challenge and I have spent several hours trying all sorts of driver and setup combinations none of which have fully solved the problem. Some even made it worse, the latest driver from Intel causes my connection to drop and reconnect very frequently for example. Eventually I decided to investigate the advanced settings for the wireless card and I searched the Intel site for information on those settings that I was not familiar with. You can find general descriptions of these settings here.

I'm running Windows 8 and connecting to a Huawei MiFi with 3G mobile broadband access and two advanced settings really caught my eye: Roaming Aggressiveness and Transmit Power.

Roaming aggressiveness is described on the Intel site here. My card was set to Medium and I don't want it to roam at all, I want it to stay connected to the MiFi. So I changed this setting to Lowest which apparently stops it roaming at all.

Transmit Power does what it says on the tin, it controls the power the card uses to transmit, mine was set to Highest. I initially didn't pay much attention to this until I stumbled across Power Save Polling (PSP) on the Intel website. It says that if the router or access point you are connecting to does not support PSP you may experience loss of connection. Aha!

I haven't been able to find any info on PSP relating to the Huawei MiFi and I doubt that it supports it (there are certainly no settings to turn it on or off). Although a setting of Highest is supposed to turn PSP off in the Intel card the website does mention resetting it by setting a lower value and then returning it to Highest again. This I have done.

I did all that yesterday and since then the connection has not dropped. Of course this may not have fixed the problem (I'll post again if it doesn't) but I wanted to let everyone else experiencing this problem know about this so that you can check your wireless router for PSP support.

You can access the advanced settings for the card by clicking on Adapter Properties in the Network & Sharing Center, then right-click on your Intel wifi card and select Properties. On the dialog box that opens click the Configure button and then the Advanced tab on the new dialog box.

I'd be interested to know whether this works (or not) for anyone else?
 

ubuysa

The BSOD Doctor
I would also set the ability for the computer to switch it off to save power option also to see if that helps.

Tutorial: Windows 8 Laptop Keeps Disconnecting from WiFi Fix

This page may have the answer as l am running windows 7.

Thank you for helping but that was the first thing I tried :)

I have a couple of other "fixes" on at the moment following some other "clues" I've come across after researching this but I'm going to let it run for a week before I claim one (or any) of them are working. This isn't a big deal but it's annoying me and I plan to sort it....
 

ubuysa

The BSOD Doctor
I've been struggling with his for a long time now, I've had no luck at all with TKIP on my Intel Centrino Wireless-N 135 card. PCS have been great, they've been trying to help me sort this out and they have just agreed to send me a new card (they are a great company to deal with I must say).

Over the last weekend I did a clean reinstall of Windows 8 and all supplied drivers (but nothing else). Even with nothing else installed I was getting dropouts and AUTH errors every so often. Strangely it would run ok for several hours and then I'd get a string of dropouts. Yes, I did check that nothing was turning on in the boat at those times that might interfere.

I had it running fine for almost 8 hours with the MiFi set to serve only 802.11g and with 802.11n turned off in my Optimus IV (using WPA2/AES) and then I got dropouts. This morning I've tried WPA2/TKIP and got dropouts after only 3 hours of use.

Here's hoping the new card is better.....
 
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