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Windows 7: Lenovo laptop REFUSES to stay connected to internet(wifi AND lan)

04 Jan 2013   #1
heavyorion

Windows 7 Home Premium 64-Bit
 
 
Lenovo laptop REFUSES to stay connected to internet(wifi AND lan)

HI all, I have a lenovo laptop that is almost exactly a year old and it WILL NOT stay connected to the internet neither by wifi nor LAN. It will connect sometimes for 10 mins, sometimes for ten seconds. I can turn the computer off, restart it, close all other programs, diagnose connection, disable and restart adapters, nothing works for very long. I dont believe it is the internet as my Xbox, my desktop and my phone all connect fine through both wireless and wired connections. There are also two other laptops on the house that connect just fine (not windows 7 machines tho) my desktop is also windows 7 and sporadically has this problem as well. I have tried going to barnes and noble and starbucks to try different internet and still the same thing happens. Very Frustrating, please help if you can


My System SpecsSystem Spec
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04 Jan 2013   #2
ICIT2LOL

Desk1 8 Pro / Desk2 7 Home Prem / Main lap Asus ROG 7 Pro
 
 

Hello and welcome heavy mate have you checked the driver for the adaptor in Device Manager?
My System SpecsSystem Spec
05 Jan 2013   #3
heavyorion

Windows 7 Home Premium 64-Bit
 
 

@ICit2LOL, I checked the device drivers and the Broadcom 802.11n Network Adapter is up to date, but the wireless controller did take an update. Restarted the laptop and still having the same issue.
My System SpecsSystem Spec
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05 Jan 2013   #4
DavidE

Win 7 Pro x64 SP1, Win 7 Ult x86 SP1
 
 

You could try flushing the DNS cache and see if that helps.

The FlushDNS.bat file in Network Posting Tips makes it easy.
My System SpecsSystem Spec
05 Jan 2013   #5
heavyorion

Windows 7 Home Premium 64-Bit
 
 

DNS I dont think is the problem, because I cant connect to my desktop which is on the same network. But, cleared the cache anyway and still no change in behavior
My System SpecsSystem Spec
05 Jan 2013   #6
ICIT2LOL

Desk1 8 Pro / Desk2 7 Home Prem / Main lap Asus ROG 7 Pro
 
 

Sounds obvious but have you tried a new LAN cable?
My System SpecsSystem Spec
05 Jan 2013   #7
heavyorion

Windows 7 Home Premium 64-Bit
 
 

I have a cat6 cable that I switch between my laptop n my Xbox, currently working fine on my xbox as we speak
My System SpecsSystem Spec
05 Jan 2013   #8
ICIT2LOL

Desk1 8 Pro / Desk2 7 Home Prem / Main lap Asus ROG 7 Pro
 
 

Hum try a scannow heavy > in command prompt run as admin type sfc /scannow (there is a space between the sfc and the /) and hit enter.

Shouldn't take long and is just one less thing to check out. (mine is blue / white of choice yours probably black & white different font too)


Attached Images
 
My System SpecsSystem Spec
07 Jan 2013   #9
heavyorion

Windows 7 Home Premium 64-Bit
 
 

Slight hangup with the scannow approach ICit...I am logged in as an administrator on the laptop (it even says C:\Users\Adminstrator2) but it says I "need to be an administrator running a console session to use the sfc utility"...
My System SpecsSystem Spec
07 Jan 2013   #10
DavidE

Win 7 Pro x64 SP1, Win 7 Ult x86 SP1
 
 

Did you right click on CMD.EXE and click "Run as administrator" to open the CMD console window?
My System SpecsSystem Spec
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 Lenovo laptop REFUSES to stay connected to internet(wifi AND lan)




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