If you are video conferencing from one computer to another, QoS plays an important role. By default, QoS has a priority of 20%. So how do you increase this? Easy. This applies to Windows Pro and above.
Expand “Computer Configuration”-
Select the “QoS Packet Scheduler.”
Double click the “Limit Reservable Bandwidth” key,
Now check the “Enabled” item on the Settings tab.
Change the “Bandwidth limit %” to 30 or above depending on how much you need to reserve
(test this during busy hours on your network to tweak this number), then click Apply and exit gpedit.msc. Now go to a cmd prompt as an administrator and type gpupdate/force.
Don’t forget to enable Traffic Shaping in your router if it has the option (Dir-655 shown – DLink) and WMM.
(Enabling WMM can help control latency and jitter when transmitting multimedia content over a wireless connection)
Remember, these settings also help with VoiP applications.