Windows Firewall

You may receive a prompt to allow your DVR application to use the network. Once approved Windows Firewall will work with the HDHomeRun.

ZoneAlarm

Some versions of ZoneAlarm interfere with the video data from the HDHomeRun. If you encounter this problem then you should upgrade to the latest version of ZoneAlarm. With the older problematic versions of ZoneAlarm it is not sufficient to disable ZoneAlarm – ZoneAlarm must be completely uninstalled to remove it from the network stack. A reboot is required after uninstalling ZoneAlarm.

McAfee Security Center

Some versions of McAfee Security Center are known to block the video data from the HDHomeRun. If you encounter this problem then you should upgrade to the latest version of McAfee Security Center.

ESET NOD32

Some versions of NOD32 are known to block video data from the HDHomeRun. If you encounter this problem you should upgrade to the latest version of NOD32. With problematic versions it is not sufficient to disable NOD32 – NOD32 must be completely uninstalled to remove it from the network stack. A reboot may be required after uninstalling NOD32.

PC-cillin firewall

The PC-cillin firewall will block communication if the network is configured in Windows as a “public” network. In the Network and Sharing Center ensure the network is configured as “private”.

NVIDIA ForceWare Network Access Manager

The NVIDIA ForceWare Network Access Manager software may cause HDHomeRun Setup and/or the DVR application to abort with an application error. Uninstalling NVIDIA ForceWare Network Access Manager will solve the problem.

Linux / FC6 Firewall

FC6 runs a firewall by default. If the HDHomeRun cannot be discovered then open UDP port 65001 or disable the firewall.