Networking lockups on multiple (was one) sites

[RaviN]

Addendum/Update to below:

I am now getting video lockups on browser streamed videos from multiple sites; happens on FF3 and IE6.

I have an Atheros card on an 8744-5BU. Power management is off. I uninstalled the driver, rebooted, and had the system reinstall the driver. Problem still occurs - especially when another app like a mail client tries to use the connection. Doesn't always happen but there is a decent correlation.

I'd like to try an updated driver but am not sure where to look on the Lenovo site. I would like to ensure that I get the ones for Atheros and not the Intel card.



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I learned recently that CBS offers free streams of the original Star Trek series at:
http://www.cbs.com/classics/star_trek/video/video.php

I tried to watch a few of my favorite episodes on my T60, XP Pro, Atheros 11abgn, Intel Pro/1000, and with 2GB RAM. Whether I am on wireless or hooked up directly to my cable modem, the videos stop after 2 to 5 minutes and lock up the networking. Other browser windows, email clients, and the like just hang waiting to (re)establish connectivity. I've been on a lot recently about freezups during video playback. This is not that problem. The computer is alive and running and I can switch to other applications.

Sometimes closing the video browser is enough to get the internet connection back. Other times I connect to my Netgear WGR614v6 router and release/refresh the IP address to get the connection back. This in itself says that T60 <--> Netgear is ok but something is going screwy with the innards of the TCP/IP settings. I have not tried the equivalent while hardwired to the cable modem.

PC Doctor 5 says after fifty tests that the wireless card is fine.
I tried the site on my old Sony Vaio also running XP. No hangup although the video is not nearly as smooth due to the older networking card and slower CPU.

I saw this behavior a couple of days ago under XP SP2. Today I upgraded my video drivers per Opcode's protocol:
http://forum.thinkpads.com/viewtopic.ph ... 5&start=60
Sat Aug 09, 2008 9:25 am
and I also installed SP3 - no change on the CBS site.

I am able to get good performance on other high quality video streaming sites such as http://www.medici.tv

I appreciate that this is stretching the kindness of forum members to get one site to play properly. I am concerned though that this may indicate that I need to tweak my configuration to deal with the newer streaming sites.