Tech Support > Computer Hardware > Laptops/Notebooks > DWL-650+ Win98SE Freeze downloading large file
DWL-650+ Win98SE Freeze downloading large file
Posted by edburns@gmail.com on February 7th, 2005


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 7th, 2005



<edburns@gmail.com> wrote in message
news:1107815996.587192.156060@f14g2000cwb.googlegr oups.com...
only 32 MB of RAM. Surfing the net often means a lot of graphics!



Posted by Quaoar on February 8th, 2005


Richard Johnson wrote:
....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 Capt. 'Wild' Bill Kelso, USAAC on February 8th, 2005


edburns@gmail.com wrote:
32MB RAM???!!! I'm amazed it even boots You gotta add a lot more RAM to get
98 to run well. 128MB is normally the min RAM for 98 (and higher) to run well.

TJ

Posted by mike on February 8th, 2005


edburns@gmail.com wrote:
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 Quaoar on February 8th, 2005


Capt. 'Wild' Bill Kelso, USAAC wrote:
Not so... Win98 runs fine in 32MB, a bit slow. The more serious issue
is the HD but with adequate management the HD is OK.

Q



Posted by edburns@gmail.com on February 8th, 2005


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

Posted by mike on February 8th, 2005


edburns@gmail.com wrote:
I lied. I have the same Netgear router. Flash the firmware.
The Linksys is on the other network. Sorry for the confusion.
mike

--
Return address is VALID.
Wanted, PCMCIA SCSI Card for HP m820 CDRW.
FS 500MHz Tek DSOscilloscope TDS540 Make Offer
http://nm7u.tripod.com/homepage/te.html
Wanted, 12.1" LCD for Gateway Solo 5300. Samsung LT121SU-121
Bunch of stuff For Sale and Wanted at the link below.
http://www.geocities.com/SiliconValley/Monitor/4710/


Posted by edburns@gmail.com on February 9th, 2005


Ok, I flashed the firmware on the netgear MR814v2, but I still get the
problem.

I tried setting the MAX TCP Receive to 2048 and the MTU to 1400 using
DRTCP, but still I see the problem. At this point, can someone point
me at some diagnostic tools to give me some insight into what's
happening? There are two parameters I'm investigating:

Receive Rate
Total Bytes Received

Ed

Posted by edburns@gmail.com on February 11th, 2005


Does anyone have any more suggestions to offer on this?

Ed


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