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Windows 7: Wireless Internet Slow - Fast in Safe-Mode

12 Sep 2011   #1
SuperAl

Windows 7 Home Premium 64
 
 
Wireless Internet Slow - Fast in Safe-Mode

Hi everyone,

I have a very annoying problem with my wireless adapter. My flatmates and I recently had 50MB internet installed. The connection itself is fine, when my laptop is connected via cable it tests near to 50MB, and my flatmates' laptops get a good speed wirelessly too.

When I connect wirelessly it is incredibly slow - testing at less than 1MB. The tests themselves seem to stutter and pause. Downloads are slow (less than 100kb/s) and web pages are slow to open and often hang.

I have a nearly new Dell Inspiron laptop, with an Intel Centrino 1030-N wireless adapter. Windows 7 Home Premium 64.

Now - the strange bit - when I boot in safe mode with networking enabled and connect wirelessly the connection is fast (consistently tests at 40MB+).

I assumed this meant there was a conflicting service or something, but could not find which ones were causing the problem after spending an entire day of trial-and-error switching them off.

I became so frustrated that I formatted the drive and performed a fresh install of windows.... Same problem. Even though I only installed the network drivers the exact same problem has re-occured - fast on safe mode, terribly slow on normal boot.

So, to summarise, so far I have tried:

Updating wireless adapter drivers (and rolling back to older drivers - no change)
Re-installling windows (so no chance of any spyware, adware, or viruses)
Switching off startup services which could be potential culprits - no change

This is really annoying - I just want to enjoy my new superfast internet!

Any ideas or help would be appreciated very much!


My System SpecsSystem Spec
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12 Sep 2011   #2
Shadowjk

Windows 7 Professional x64 SP1 ; Windows Server 2012 R2 Standard
 
 

When you say you re-installed windows did you use the OEM software disk that came with your computer?

If so then it is a program that Dell has installed and your best bet is to try and find the culprit Program by doing a clean boot

Note   Note
This may take some time


Perform a clean startup to determine whether background programs are interfering with your game or program


Also please run through the steps in this post and report back


Thanks,
Josh
My System SpecsSystem Spec
12 Sep 2011   #3
SuperAl

Windows 7 Home Premium 64
 
 

I just opened the Intel statistics program and found the following. Is it supposed to only be receiving on the 1mbps? Or have I stumbled onto my problem?


Attached Thumbnails
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My System SpecsSystem Spec
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12 Sep 2011   #4
Shadowjk

Windows 7 Professional x64 SP1 ; Windows Server 2012 R2 Standard
 
 

Well depending on your ISP you won't get the full 50MB 24/7 however you should definitely not receive 1MB ever
My System SpecsSystem Spec
12 Sep 2011   #5
Shadowjk

Windows 7 Professional x64 SP1 ; Windows Server 2012 R2 Standard
 
 

Can I ask you to ping Google and show me your Ping in a screenshot

Click Start then in the search box type 'cmd' then open it up

After that type the following and press enter

Code:
ping www.google.co.uk -t
It should then keep pinging google until you stop it

Stop it by pressing - CTRL + C

Also try and run the ping test at Pingtest.net - The Global Broadband Quality Test

Thanks,
Josh
My System SpecsSystem Spec
12 Sep 2011   #6
SuperAl

Windows 7 Home Premium 64
 
 

Hi,

Thanks for the responses - but I have (kind of) figured out what the problem is.

Turns out there is a compatibility issue between the Virgin Media "Superhub" router and the Centrino 1030-N wireless adapter.

Switching off the N wireless mode in my adapter nets results of about 15MB in speedtests (a marked improvement on the 0.3 I was getting!). I called Virgin and they are sending me out a free USB wireless N adapter.

That just leaves the mystery of how the N wireless works when in safe mode? I'd rather not use a plug-in USB adapter if possible...

Any more insight would be gratefully received.

(Looks like that re-install was a waste of time then!)
My System SpecsSystem Spec
12 Sep 2011   #7
SuperAl

Windows 7 Home Premium 64
 
 

(Oh - and the fresh install was not using the Dell disc - was just Windows)
My System SpecsSystem Spec
12 Sep 2011   #8
Shadowjk

Windows 7 Professional x64 SP1 ; Windows Server 2012 R2 Standard
 
 

My answer to your question is very vague and could be a number of problems causing it However a USB Wireless network is suffice and if you get cut outs then post a new thread here and someone will help you

Again if it is a compatibility issue I am not sure but the fact it works in safe mode is 9/10 chance of it being a Program

Josh
My System SpecsSystem Spec
08 Jul 2015   #9
ejsexton82

Windows 7 Home Premium 64-bit
 
 

I had the same issue! My Centrino Wireless-N 1030 adapter had compatibility issues with my Motorola SBG6580 router. Disabling the N-mode solved the problem. Thanks for the help!
My System SpecsSystem Spec
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 Wireless Internet Slow - Fast in Safe-Mode




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