How to Set Up QoS on Your Router
QoS (Quality of Service) lets your router prioritise time-sensitive traffic like video calls and gaming over background downloads. Essential on shared connections with limited bandwidth.
What Is QoS?
QoS is a set of router settings that controls how bandwidth is allocated between devices and applications. Without QoS, all traffic on your network competes equally for bandwidth. When someone starts a large file download, it can consume most of the available bandwidth and cause buffering in video calls or lag spikes in online games. QoS solves this by giving certain types of traffic priority access to the available bandwidth.
The practical result is that your video call continues smoothly even when someone else is downloading a 50GB game update, because the router recognises the video call packets as high priority and routes them first.
How to Enable QoS
Go to http://192.168.1.1 or your router IP. Enter admin credentials.
Look under Advanced > QoS, Advanced Wireless > WMM, or Bandwidth Management. Netgear calls it Dynamic QoS. Asus has Adaptive QoS in its main menu. TP-Link has QoS under Advanced > QoS.
QoS needs to know your real upload and download speeds to allocate them correctly. Run a speed test on a wired connection and enter the values in Mbps. Overstating speeds makes QoS less effective.
Most routers have predefined categories (Gaming, Streaming, Web Browsing, Downloads). Set Gaming and Video Calls/Conferencing to Highest priority. File sharing and backup can be set to Low or Best Effort.
Types of QoS
The router analyses traffic and prioritises automatically. Easiest option. Used by Netgear Dynamic QoS and Asus Adaptive QoS.
Assign priority levels to specific devices. Your gaming PC gets high priority, the security camera gets low priority.
Prioritise by application type (gaming ports, streaming, VoIP). Requires more knowledge but gives precise control.
Wireless-specific QoS that prioritises voice and video traffic over the air interface. Should be enabled by default on all modern routers.