Quality of Service (QoS) is used to set up priority to specific devices, services or applications within the network through the router, so that the maximum amount of available throughput and speed can be used.
If you want to know more about QoS, click here.
Follow the instruction below to set QoS on your router :
Using a computer that is hardwired to the router, access the web-based setup page. To learn how, click here.
Find the QoS part on the setup page (Different routers take different approaches to QoS). For cisco router is on the Applications and Gaming tab then select QoS from the sub-tabs.
NOTE: If you see Wi-Fi Multimedia (WMM) Support is a wireless QoS feature that improves quality for audio, video, and voice applications by prioritizing wireless traffic (WMM prioritizes network traffic in four categories, from highest to lowest: Voice, video, best effort (most traffic from apps other than voice and video), and background (print jobs, file downloads, and other traffic not sensitive to latency). WMM is good as far as it goes, but it ameliorates only wireless network contention. It does nothing to resolve the battle for bandwidth among wired network clients ) .
Enable Qos. In Linksys router it’s On the Internet Access Policy Priority field. To allow your router to detect the maximum level, keep the default Auto. To specify, select Manual then enter the appropriate bandwidth and select Kbps or Mbps.
Note: Many people set up QoS hoping that it’ll do a lot of good only to report later that it doesn’t do anything. That’s because QoS only works when the bottleneck is in the right place, and the key settings are your bandwidth declarations.
Suppose that your QoS settings are set beyond the bandwidth you receive from your ISP. What happens is that the traffic that leaves your router isn’t prioritized because your router thinks that there’s ample bandwidth available. Meanwhile, you’re hitting your ISP’s caps, and they’re the ones who decide what is and isn’t important.
On the other hand, if you set your QoS’s declared bandwidth lower than your allotted ISP bandwidth, you’re creating an artificial bottleneck where you can control it: at your router. Now, your own QoS settings kick in and re-arrange your traffic. The cost of bandwidth is pretty minimal, but by tweaking things slowly you can marginalize it further.
The key to getting your bandwidth back is tweaking and observing over time. The Uplink and Downlink settings are your keys.
We suggest you start your QoS dabbling by setting these values to 85% to ensure that your QoS is being effective. Once you tweak your settings until things work the way you want them, you need to take the next step and ramp things up bit by bit.
Take your Downlink and Uplink and boost them by 1-2% at a time, preferably while maxing out your bandwidth and checking your QoS settings to make sure they’re still in effect. It’s possible to go as high as 95% percent and still have your bandwidth prioritization working. Kick things up by an increment and give it a few days. Lather, rinse, repeat. You can reclaim quite a bit of sacrificed bandwidth this way.
Click on the drop-down arrow to select the appropriate Category based on how you want to set up priority. Create a name to easily identify the device and enter its MAC Address then select the desired level of priority.
NOTE: In this example, we will use MAC Address as the category.
Click to save your changes.
NOTE: The settings you made would appear right away in the Summary field below.