
Symptom: Playing a recording in DVR software has video errors. Playing same
recording in VLC works.
If a recording is made by the DVR software and plays error-free in VLC then the problem is
most likely with the MPEG2 video codec or video drivers.
● Check the nVidia/ATI/Intel website for the latest drivers for your video card.
● XP / MCE 2005: Check the video (MPEG2) codec by using the following utility:
http://www.microsoft.com/downloads/details.aspx?FamilyID=de1491ac-0ab6-4990-943d-
627e6ade9fcb&displaylang=en
● Vista: Check the video (MPEG2) codec by using the following utility:
http://mediacenterexpert.blogspot.com/2006/07/vista-media-center-decoder-utility.html
Symptom: Network packet loss
Check for any third party firewall or security software that might affect network
communication.
Check the speed and brand of the Ethernet interface:
● Right click on My Network Places and choose properties.
● Double click on the Local Area Connection icon to bring up the status page.
● Check that the “Speed” is reported as 100Mbps or 1Gbps.Click Properties. Check the
brand/model of the network interface:
○ nForce based interface: Click Configure and switch to the Advanced tab. Disable
checksum offloading features.
○ Intel based interface: Click Configure and switch to the Advanced tab. Test with
alternative Interrupt Mitigation settings starting with “Extreme”.
○ Other chipsets: Click Configure are switch to the Advanced tab.
■ Increase the Receive Buffer size (if this option is present).
■ Test with the Interrupt Mitigation/Moderation setting both On and Off (if this
option is present).
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