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DWL-650+ Win98SE Freeze downloading large file
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DWL-650+ Win98SE Freeze downloading large file edburns 02-07-2005
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Posted by edburns on February 7, 2005, 3:02 pm
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 ello,

Problem:

Wireless network card causes system freeze sporadically.

System:

My machine is a Toshiba Tecra 730CDT with 32MB ram and 2GB disk, with
Win98SE and all the windows update patches applied successfully.

I have a D-Link DWL-650+ Wireless 802.11b card that seems to work ok
except the machine frequently freezes up when surfing. I have found
a
repeatable scenario that causes the freeze: try to download a 27MB
file
via FTP from another machine on my LAN. Freezes every time.

Previous attempts at remediation:

Installed the latest driver for the card, version 3.0.7.

Disabled all unused COM ports in Device Manager.

Disabled all unused LAN cards in Device Manager.

Freed up all IRQs I can (IRQ3)

Tried different PCMCIA ports on the machine.

Still freezes.

Any ideas?

Thanks, very much,

Ed



Posted by Richard Johnson on February 7, 2005, 3:47 pm
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> ello,
>
> Problem:
>
> Wireless network card causes system freeze sporadically.
>
> System:
>
> My machine is a Toshiba Tecra 730CDT with 32MB ram and 2GB disk, with
> Win98SE and all the windows update patches applied successfully.
>
> I have a D-Link DWL-650+ Wireless 802.11b card that seems to work ok
> except the machine frequently freezes up when surfing. I have found
> a
> repeatable scenario that causes the freeze: try to download a 27MB
> file
> via FTP from another machine on my LAN. Freezes every time.
>
> Previous attempts at remediation:
>
> Installed the latest driver for the card, version 3.0.7.
>
> Disabled all unused COM ports in Device Manager.
>
> Disabled all unused LAN cards in Device Manager.
>
> Freed up all IRQs I can (IRQ3)
>
> Tried different PCMCIA ports on the machine.
>
> Still freezes.
>
> Any ideas?
>
> Thanks, very much,
>
> Ed
>
Try adding more RAM. The unit has to hit that swap file pretty hard with
only 32 MB of RAM. Surfing the net often means a lot of graphics!




Posted by Quaoar on February 7, 2005, 8:39 pm
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Richard Johnson wrote:
>> ello,
>>
>> Problem:
>>
>> Wireless network card causes system freeze sporadically.
>>
>> System:
>>
>> My machine is a Toshiba Tecra 730CDT with 32MB ram and 2GB disk,
>> with Win98SE and all the windows update patches applied
>> successfully.
>>
>> I have a D-Link DWL-650+ Wireless 802.11b card that seems to work
>> ok except the machine frequently freezes up when surfing. I have
>> found
>> a
>> repeatable scenario that causes the freeze: try to download a 27MB
>> file
>> via FTP from another machine on my LAN. Freezes every time.
>>
>> Previous attempts at remediation:
>>
>> Installed the latest driver for the card, version 3.0.7.
>>
>> Disabled all unused COM ports in Device Manager.
>>
>> Disabled all unused LAN cards in Device Manager.
>>
>> Freed up all IRQs I can (IRQ3)
>>
>> Tried different PCMCIA ports on the machine.
>>
>> Still freezes.
>>
>> Any ideas?
>>
>> Thanks, very much,
>>
>> Ed
>>
> Try adding more RAM. The unit has to hit that swap file pretty hard
> with only 32 MB of RAM. Surfing the net often means a lot of
> graphics!

....additionally, you need at least 300MB free space on the HD - that's
contiguous space - so after making that much available, defragment. It
might take a while if the drive has not been defragmented frequently.

Q




Posted by mike on February 8, 2005, 2:29 am
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edburns@gmail.com wrote:
> ello,
>
> Problem:
>
> Wireless network card causes system freeze sporadically.
>
> System:
>
> My machine is a Toshiba Tecra 730CDT with 32MB ram and 2GB disk, with
> Win98SE and all the windows update patches applied successfully.
>
> I have a D-Link DWL-650+ Wireless 802.11b card that seems to work ok
> except the machine frequently freezes up when surfing. I have found
> a
> repeatable scenario that causes the freeze: try to download a 27MB
> file
> via FTP from another machine on my LAN. Freezes every time.
>
> Previous attempts at remediation:
>
> Installed the latest driver for the card, version 3.0.7.
>
> Disabled all unused COM ports in Device Manager.
>
> Disabled all unused LAN cards in Device Manager.
>
> Freed up all IRQs I can (IRQ3)
>
> Tried different PCMCIA ports on the machine.
>
> Still freezes.
>
> Any ideas?
>
> Thanks, very much,
>
> Ed
>

I had a perfectly functioning wireless system with a Linksys router.
I added a DWL650 to the mix and it locked up frequently requiring
rebooting every computer on the network to get it back.

I flashed the firmware on the ROUTER and those problems went away.
mike

--
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Posted by edburns on February 8, 2005, 10:16 am
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Thanks for all your replies. I tried manually setting the swap space
to have a 530MB maximum (ludicrous, I know, but I'll try anything at
this point) Still freezes up every time when getting a large file over
FTP.

Could it be something with the MTU?

The router is a Netgear MR814v2. There is a firmware upgrade
available, but I don't observe the problem that every computer freezes
up, only the one with the DWL-650+. In any case, I'll try the
firmware upgrade and see if that helps.

Ed



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