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24 Posts

10-01-2008

United States of America

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  • Message 1 of 11

X200 wireless problem.

2008-10-04, 17:26 PM

Hi all,

 

I had a post a few days ealier about my X200 reluctance to connect to any available wireless network.

Well, I finally managed to focus the problem.

Here is the scenario:

If I am REALLY REALLY REALLY close to the wireless router (I'm talking about 0.5 meter), then everything works great. It connects to the network and  has reasonable speed.

But, once I get beyond the 0.5 meter range, the speed drops down exponentially, until it hits 1 Mbps.

Signal strengh, btw - is allways on Excellent. 

 

I have another laptop in the house that have no problem connecting (even 10 meters away).

It is not an interfernce problem between the two laptops because it happens even when the other laptop is off.

 

Any ideas?

Is this a hardware / software problem?

 

S.

 

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43 Posts

01-07-2008

Japan

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  • Message 2 of 11

Re: X200 wireless problem.

2008-10-05, 12:01 PM

Not sure what configuration you have, but my X200 (Win XPPro SP3, Intel 5100 wirless) has no problem.

Some other colleagues had some disconnection issues with their X200 (VISTA, Intel 5300 Wireless) and they were solved by selecting 100% in the "Transmit Power Level" and LOW in the "Power Save Mode" in the Access Connection profile (Wirless Setting -> Advanced Configuration).

 

Ballallaz

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165 Posts

09-16-2008

United States of America

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  • Message 3 of 11

Re: X200 wireless problem.

2008-10-06, 17:57 PM
In Access Connections, my Power Save mode is set to Maximum Performance.  Have you tried doing this?  If you have, and it does not help, I would think that your wireless card is bad. 
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96 Posts

08-19-2008

United States

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  • Message 4 of 11

Re: X200 wireless problem.

2008-10-06, 23:11 PM

Check your device manager and see if the driver has an error.

 

right click my computer-left click manage-choose device manager-then on right side of screen look for network adapters-expand list and see if wlan has a red x or yellow question mark over the icon.

 

If so uninstall and reinstall driver. 

Message Edited by CSX on 10-06-2008 04:12 PM
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Ignorance is no excuse!
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24 Posts

10-01-2008

United States of America

23 Signins

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  • Posts: 24
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  • Message 5 of 11

Re: X200 wireless problem.

2008-10-07, 0:15 AM

Hi Guys,

 

No problem with driver. It's the latest one.

Wireless transmission power is on full.

Tried to use DHCP with static ip address - didn't help as well.

I also tried the method suggested at http://lnv.lithium.com/lnv/board/message?board.id=X_Series_Thinkpads&thread.id=3504

but it did not help as well.

 

I am narrowing down to think that it is a hardware problem.

 

S.

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6 Posts

10-04-2008

Cambridge, MA

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  • Message 6 of 11

Re: X200 wireless problem.

2008-10-07, 1:38 AM
Do you have the thinkpad wifi adapter III, the intel 5100 (agn), or the intel 5300 (agn)?
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24 Posts

10-01-2008

United States of America

23 Signins

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  • Message 7 of 11

Re: X200 wireless problem.

2008-10-07, 1:39 AM

I have the 5100 agn

 

S.

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96 Posts

08-19-2008

United States

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  • Message 8 of 11

Re: X200 wireless problem.

2008-10-07, 2:25 AM
If your machine can find any avaialable networks. Your issue isnt with the harwdare.
----------------------------------------------------------------------------------------------------------------------------------------
Ignorance is no excuse!
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24 Posts

10-01-2008

United States of America

23 Signins

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  • Posts: 24
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  • Message 9 of 11

Re: X200 wireless problem.

2008-10-07, 2:38 AM

That's what Lenovo said to me, but I am not convinced.

How can you explain all this strange behavior. Specificaly the fact that I can't connect if I'm more than 0.5 away from the router?

 

S.

 

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17 Posts

10-07-2008

CA, USA

338 Signins

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  • Message 10 of 11

Re: X200 wireless problem.

2008-10-07, 3:17 AM
It sounds to me as if your antenna is not properly connected to your wireless card, which would explain why it would be able to connect only if extremely close to your router.  If you have the ability, I'd try to open it up and check to see that the wires for the antenna are connected to the wireless card.
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