I had the same problem.   I had a Samsung with the Intel 6235 wireless adapter.  I am a web designer and if I can't get on the internet or have problems getting on the internet, then the laptop is no use to me. I read all the posts on here and it looks like Intel does not care or they think the issue will go away.  I just return the laptop back to Best Buy for a better one, but this time I made sure that the laptop did not have the Intel 6235 wireless adapter.

I have the same problem! I can't get a sustained stable connection using Wireless N, but wireless G is stable. I have tried all the suggestions on the forums (disable bluetooth, maximum performance on the WiFi NIC etc) with no success.I have a Billion 7800N, all other devices in my house work fine on wireless and have a stable connection.

I paid a premium for a Samsung Series 9 NP900X3C-A01AU only to be let down by Intel's Wifi.

Why doesn't Intel respond on this topic or give us an indication on a fix??

Figured out my particular scenario in the settings of my D-Link DIR-655 and this 6235. Setting the router and adapter to match supporting features was key. Enabling WMM, 802.11 n,g,b only (no a), and using the 20 MHz channel width was effective. Am now getting 54-180 Mbps (according to Windows) without dropping sessions and video streams well. Getting 23 Mbps d/l and 3 Mbps u/l through U-Verse consistently. Having a professional installer or use only the laptop's OEM specifications is a bad excuse by Intel to blow this off inmho. The "Main" and "Aux" connectors may need to be alternated for utilizing pre-existing internal antenna placements. Both the BT and WiFi are finally usable on my modded non-OEM spec'ed Asus S400CA.

We bought fifteen HP 9470m laptops with a Centrino 6235 for our company and we're also experiencing unworkable speeds sometimes (although the signal strength stays excellent). Only work-around is to reconnect to the network or disable 802.11n. We use about 6 different models on this wireless network without any problems so it must be the 6235 chip. Any response from Intel would be nice.

I made an account just to say this.

I've had the exact same problem with the exact same wireless card, and was following this thread for a number of days. Nothing suggested thus far has worked aside from madman6886's suggestion to use generic Microsoft drivers instead of Intel ones.

This is the only thing which has worked for me, and instructions on how to do it are as follows:

1. Download an extra copy of drivers from Intel for this card (just in case this doesn't work and you lose any way to connect to the Internet).

2. Go to Device Manager (in Windows 8, type "Device Manager" on the Start screen - it should be under the "Settings" filter - else you can find it in Control Panel), and under "Network Adapters", you should see something like "Intel(R) Centrino(R) Advanced-N 6235".

3. Right-click it and press "Uninstall." Make sure the checkbox for "Uninstall device drivers" is checked, if it shows up. (You'll lose your internet connection here.)

4. Under the "Bluetooth" section, look for the Bluetooth adapter (forgot what it's named, specifically), and repeat the process.

5. Go to Programs and Features (in Windows 8, type "Programs and Features" on the Start screen under the "Settings" filter - else it should also be in the Control Panel), and uninstall anything that has to do with Intel Centrino or Intel Bluetooth or whatever.

6. Restart and open Device Manager again - if you right-click "Intel(R) Centrino(R) Advanced-N 6235" under Network Adapters and go to Properties, under the Drivers section, it should list "Microsoft" as the provider instead of Intel. You are now using generic Microsoft drivers for your card.

I hope this helps anyone out.

Nothing that has been posted thus far has solved my issue... Did I really just pay 999.99 at bestbuy for a laptop that has latency issues?

Every time I play League of Legends and other games, I have sporadic extremely noticeable latency spikes. This has happened on several different wireless connections, Intel please provide a answer referencing a hotfix...

Stumbled across this thread and others as I was about to complete my purchase of a Samsung ultrabook.

Just decided not to.

Congratulations, Intel, congratulations, Samsung. Engage with your customers (and potential customers) or they will desert you.

I'm now off to put more money in the ever-swelling coffers of Mr Mac. I wonder why that happens???

bump... someone comment. there has got to be something we can do to stop the interruption of lag spikes, what a joke spend all that money for junk.

I tried Sean's suggestions (driver roll back) and seemed to work, but after about 5 minutes or so, the network problems started again.

I'm not sure why Intel is ignoring the N 6235 issue? Maybe they just hope we go away.

I have also had the same problems with a samsung 5 series running preinstalled win8.

intel have releasewd new drivers dated the 21.1.13

i installed these last night and the problem does seem to have gone away at the moment

BUT..... due to the sporadic nature of this fault i havent had enough time to test it fully yet to determine if it is a real fix or just a slight improvement.

i shall report back after a proper testing over the weekend.

For what it's worth my adapter seems to be performing much better ever since I switched the Wireless Mode to 802.11g

Same sporadic WiFi issue with:

- PC brand/model/OS: Asus Ultrabook / Windows8 (purchased just before Christmas in Paris)

- Wireless network adapter: Intel(R) Centrinol(R) Advanced-N 6235

802.11n channel width for band 2.4

Type of security: WPA2 - Personal

Cyphering : AES

Intel driver version: 15.5.0.43 (16/08/2012)

Used at home behind a wireless DSL router

Another PC running fine at home (Wireless network adpater: Atheros AR5B97)

Wireless network adapter defect? a virus ? a problem with the security association ? power saving mechanism ?...

Same for me too on a ASUS zenbook ux32VD/windows8

and a Motorala router: SBG6580 SURFBOARD with 802.11n wireless technology

Wifi is slower than my 8 years old computer on xp and I have huge lag during games and some applications.

I have the same problem with my new Samsung Series 5. After trying all the above solutions, it appears that uninstalling the device drivers may have worked for the moment. I obviously hope the problem doesn't return as it is incredibly annoying - my phone can find WiFi networks and connect when my laptop cannot.

Well many many months off and i still have a piece of crap laptop, with no problems according to Samsung and no response from Intel.  Just disgusting! the laptop is so sporadic it took 3 re -loads of the laptop to read over everyones comments, my son cant do homework on this laptop and connection suddenly drops and he loses work and just basically the laptop is pure and simply a waste of time, and how the hell it hasnt been smashed up the wall i do not know!! i really like samsung, but this intel problem as put me off completly, no care for anything and i wouldn't mind but the cost of these things is well above some other laptops available on the market.

INTEL PLEASE READ THIS FORUM DONT IGNORE LIKE YOU HAVE FOR OVER 5 MONTHS.  THIS IS NOT GOOD PUBLICITY!!!!!