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Wireless Connection problem - constant drop outs (Intel Pro 3945ABG wireless NIC)

 
 
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      17th February 2007, 03:31 PM
[quote]Sucka (2/17/2007)To update that, i connected my other laptop with the same Intel 3945ABG internal card to the network and it would drop at the same time as the Vista laptop. I even swapped the mini-pci cards to confirm it wasn't the hardware itself.

* So we can rule out the cardsbeing the problem.*

When the connection drops on the laptops, it does not drop on my wired XP computer.

(please confirm, do BOTH laptops drop at same time?)

* wired Computer still connected rules out any broadband signal problems.*

Also I am using the exact same router as yourself, so we may get somewhere
 
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      17th February 2007, 03:46 PM
I can confirm they drop at the same time. My wife's laptop with an PCMCIA card also has been having drops since Vista.



Again, NO drops before Vista was installed onto my primary laptop.



Internet does not drop on my wired computer running XP. In fact, i easily get uptime of 5+ days before i reboot without a single drop.



Drops were very frequent on my v1.0 router, but still happening on this new v6.0 i bought for testing purposes. In hind sight since i was planning on returning it anyways, i should have bought another brand, meh.



Uptime on my laptop can be anywhere from 10 hours i've seen without a drop, to continuous drops every 1-2 minutes, until i reboot computer and recycle the router which even that doesn't always work. It will always eventually come back, but no rhyme or reason to it.



When it drops, i open the network list and the usual 3-4 networks i can see are not visible. Sometimes my network will be listed as "default" or "unnamed network" which i had never seen on XP.



Things i've tried:



latest firmware on both routers (confirmed they work with vista by linksys support)

reinstall Vista

latest 3945ABG drivers

let vista's default 3945ABG drivers do their thing

swapped internal cards with other laptop

disable ip6

change power schemes

tried 2 routers

changed router channels



Any other suggestions based on the info provided?



I've posted this problem on a few forums, no one has any suggestions...
 
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      17th February 2007, 04:02 PM
[quote]Sucka (2/17/2007)
When it drops, i open the network list and the usual 3-4 networks i can see are not visible. Sometimes my network will be listed as "default" or "unnamed network" which i had never seen on XP.

mmm...Im sure Ive read something about this before :blink:

let me have a trawl and see if I can find it again.
 
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      17th February 2007, 04:26 PM
Still looking but on searching, alot of unamed network problems seems to be related to using WEP and they have been changing to WPA instead due to constant disconnections.

could give that a try in the meantime.

LOL just found your other post on another forum! :w00t:
 
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      17th February 2007, 04:46 PM
lol.....yeah, i posted it a few times.



WPA can't hurt, i'll give it a shot.



I'll be watching this thread, so if you (or anyone) has anything else to try i'm open to suggestions.
 
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      17th February 2007, 05:06 PM
couple of quick questions, where are you and what broadband service do you have?
 
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      17th February 2007, 05:06 PM
Well that didn't take long. WPA is not the problem, drops continue.
 
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      17th February 2007, 05:07 PM
San Diego, CA



Cox Cable is my ISP (no complaints).
 
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      17th February 2007, 05:10 PM
ok, so thats out then lol.

Im in england and some dropping connection are caused by too many fragmented packets. so have to change MTU settings on the router. by the way do the drops still occur when the vista machine is off?

reason Im asking is I cant figure how vista could be causing this.
 
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      17th February 2007, 05:18 PM
Agreed, i don't understand how Vista can cause this either. Only reason i posted this in Vista forums was because it started right after i installed Vista.



I really don't use the other laptop much, so i have not tested to see if it drops without the Vista computer online. Since the drops are not predictable, i don't want to sit on the laptop all day waiting when it might not disconnect to begin with. With that said, you bring up a good point. I will shit this laptop down tonight, and leave that one on overnight and see if it has dropped by morning (something that would never happen before).



Tell me more about this MTU setting. Someone suggested it on the Linksys forums:



"Try this. Reduce the MTU to 1365, beacon to 50 and RTS and Fragmentation Threshold by 40 each"



And i asked what this did, and he did not reply. I am extremely happy with my connection via hardline, it is just the wireless that seems to be giving me problems.



Thanks.
 
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