After many tests I can ensure that the wireles adapter Intel WifiLink 4965 AGN is causing high DPC Latencies with an interval of 10 micro-seconds in Windows 7 64 bit (Release to Manufacturer). I have tried the latest drivers for Windows Vista 64 bit (22.214.171.124) and Microsoft's drivers included in Windows 7 with the same results: high DPC Latencies with an interval of 10 micro-seconds and eventual very high DPC Latencies causing audio glitches with a length of up to one second. Is there any specific driver for Windows 7 64 bit (Release to Manufacturer) that solves this issue?? Will there be??
Windows 7 updated drivers are not available trough Windows Update as it's said in http://www.intel.com/support/wireless/wlan/sb/CS-030472.htm but Windows 7 (RTM) has already been released and launched. Do I have to buy an atheros wireless adapter to properly run Windows 7 and use my wireless connections??
I spent many hours troubleshooting a dropped connection issue with the 4965AGN and Win 7.
It appears as though rolling back the driver to 126.96.36.199 has solved the issue for me. I'm running 32-bit but just thought I'd let you know that this driver is working well for me - YMMV.
I'm using Win7 RTM x64, same exact device and driver version (4965AGN, 188.8.131.52 dated 9/15/2009), and I'm having the exact same issue. DPC Latency Checker from www.thesycon.de shows a >1000us spike every 10 seconds, like clockwork, if I have this device enabled in Device Manager. This is causing clicks and pops in audio recorded via my Alesis USB mixer.
Did you ever resolve this? I have the exact same problem with the 5300 AGN. Every 10 second (exactly) there is a spike of > 1000us, which sometimes causes audio glitches. I am running Windows 7 Professional x64. Disabling the Wireless adapter makes the issue disappear, but that is not really a feasible solution for a laptop.
No it isn't solved, so be patient as Intel doesn't seem to fix this kind of bugs (as NVIDIA stills with over 16000 micro-seconds DPC latencies when powermizer is enabled or just when the driver changes the frequencies between GPU bios defined ones making imposible to do audio/video editing/recording unless you use PowerMizer Switch). The eldery bugs never die Xd (and this is lasting so much)
I'm also having this issue and it's clearly from the 4965 driver.
OS: Windows 7 x64 Professional Retail
Laptop: Lenovo T61p
Problem - High DPC latency every 10 seconds causing intermittent audio skipping in playback and recording
Proof - When I disable my Intel(R) Wireless WiFi Link 4965AGN device - the latency floats around 250us and there is no longer any skipping. This also means I have no internet connection... So that's not a valid workaround. Enabled and it goes right back to the 10 second spikes.
Hey, folks. I'm going to see if I can move this question over to the wireless support forum, if that's ok, in the hopes that you will get more insight into the issue you noted. The wireless forum is at http://communities.intel.com/community/tech/wireless .