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Connections problem has me stumped ...

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40hz:
+1 w/Nudone on Nvidia drivers. I lost half a week on a desktop my sister owned due to network issues caused by those.

Also, are you plugged into a 1.1 or 2.0 USB socket? I have a Belkin USB wireless card that works beautifully as long as it's not in a version 1.1 port. If it is, it sporadically exhibits behaviors very similiar to what you're seeing: long files hang or abort towards the end of the download, but browsing always seems to work fine.

I never bothered to find out exactly what the problem was although I suspect it's either some sort of ack/nak lag issue due to the slower usb port, or some sort of buffer clog/overflow problem.

Either way, I installed a USB 2.0 card in the PC and the problem disappeared.

Try disabling the internal wifi on your laptop and see if plugging in the 'problem child' results in the same symptoms. If it does, you just might have a bum dongle.

Luck! :Thmbsup:

4wd:
It's unlikely to be nvidia network drivers since the problem is on a computer that's connected via a DLink WiFi dongle is it not?

I've had a problem similar, Zyxel router/modem to a computer with a Netgear W111v2 - small transfers OK, large transfers just stop.  Even though signal is max the transfer rate was sub-500kB/s.

I can download the offending files wirelessly on my laptop no problem but the Desktop just stops downloading and never completes. This seems to eliminate the connection which seems rock steady and fast on the laptop.-Carol Haynes (December 07, 2010, 10:57 AM)
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But it doesn't eliminate the WiFi segment of the connection unless you are using the same DLink dongle for it as well.

There could be incompatibilities between the DLink dongle and the router - I would try the DLink dongle on the laptop to eliminate the WiFi segment and even then you can only eliminate it if the laptop is also running XP-SP3 so you can run the exact same driver.

Try another WiFi dongle also if you can.

Does transferring a large file over WiFi from laptop -> desktop, (and vv.), suffer the same problem?

Carol Haynes:
To answer the questions (ish):

Avast on both computers - no probs on laptop.
Tried IE and Firefox - same problem. Tried download manager (same problem).
Not sure what LAN driver at the mo. - not using LAN but I suppose I could try disabling LAN.
Not sure whether it is USB 1.1 or 2 - have to check.
Using windows firewall - but no effect if it is disabled.

I'll have a look tomorrow at the LAN installed.

I wondered if it could be the D-Link USB WiFi adapter? It is about 5 years old apparently. Can't hink of a rational reason except that there is occasional flakiness to the connection (not consistent though). The same stalling downloads happened with the previous router - which was a D-Link so unlikely to be incompatible with a D-Link USB dongle.

Could it be mismatched packet sizes causing this sort of effect?

Carol Haynes:
Does transferring a large file over WiFi from laptop -> desktop, (and vv.), suffer the same problem?
-4wd (December 07, 2010, 04:13 PM)
--- End quote ---

Haven't tried direct transfer across network but bothe computers have TeamViewer installed and I can transfer the files directly from laptop to desktop via the TeamViewer servers!!

4wd:
Silly question but.....if it's a desktop computer that is only 3m from the hub why not just use a wired connection?

The BT Hub seems to include 4 LAN ports, (from info on the web), it'd be faster and more reliable.   Or are all the ports in use?

Someone's not microwaving popcorn when the transfers die are they?

:P

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