How to Prioritize Devices on Your WiFi Network (QoS Guide)

Your gaming console is lagging in the middle of a match while someone else streams 4K Netflix. Your video call keeps freezing while a family member downloads a game update. Sound familiar? The fix is Quality of Service — or QoS — a router feature that lets you decide which devices and traffic types get bandwidth first when everyone is competing for the same pipe.

What Is QoS and How Does It Work?

By default, routers treat every data packet equally: first in, first out. QoS changes that by classifying packets and assigning them to priority queues. Higher-priority traffic jumps the queue; lower-priority traffic (like a background file download) waits.

There are two important caveats. First, QoS cannot create bandwidth — it only redistributes what you have. If your connection is never congested, QoS rules have zero effect. Second, on fast connections (above ~300 Mbps), the CPU overhead of deep packet inspection can actually reduce throughput. Netgear’s own documentation recommends disabling Dynamic QoS on gigabit connections for this reason. QoS is a tool for congested connections, not a universal speed booster.

When QoS Actually Makes a Difference

QoS is most impactful for:

Online gaming: Games use relatively little bandwidth (~5 Mbps down, ~1 Mbps up) but are extremely sensitive to latency and packet loss. QoS ensures game packets jump ahead of a large background download.
Video calls (Zoom, Teams, Google Meet): Calls need consistent, uninterrupted bandwidth in both directions. One person streaming 4K can spike and disrupt a call without QoS in place.
Busy households under 200 Mbps: If your plan is 50–150 Mbps and three people are actively using the internet, you’ll feel congestion. QoS keeps the most important traffic flowing smoothly.

If you have a 500 Mbps or gigabit plan with light use, upgrading your plan or enabling a wired connection will do more than any QoS rule.

How to Enable QoS by Router Brand

ASUS Routers

ASUS offers the most granular QoS options of any consumer brand. Log in at router.asus.com and look for Adaptive QoS in the left sidebar. You’ll find three modes:

Adaptive QoS: Drag-and-drop priority ranking by traffic type (Gaming, Streaming, VoIP, Web Surfing, Work from Home). Best for most users.
Traditional QoS: Set minimum and maximum bandwidth values per service, port, or protocol. Most granular option.
Bandwidth Limiter: Cap upload/download speeds per device — useful for limiting a neighbor’s guest device or a teenager’s gaming console to a set maximum.

Only one mode can be active at a time. For gaming, select Adaptive QoS and drag Gaming to the top of the list.

TP-Link Routers

Log in at tplinkwifi.net or open the TP-Link Tether app. Navigate to Advanced → QoS → Settings. Enable QoS, enter your ISP’s actual download and upload speeds (use about 80% of your measured speed to leave headroom), then add devices to the High Priority list. TP-Link’s HomeCare subscription includes more advanced traffic management on newer models.

Netgear Nighthawk

On Nighthawk routers, go to Advanced → Setup → QoS Setup and enable Dynamic QoS. Enter your actual internet speed — this is critical for accurate allocation. You can then add priority rules by application (Zoom, Xbox Live), device name, or MAC address. Remember: Netgear recommends disabling Dynamic QoS on connections above 250–300 Mbps, where QoS overhead can reduce throughput by up to 45%.

Google Nest WiFi

Google keeps it simple but limited. Open the Google Home app, tap WiFi → Devices, select the device you want to prioritize, and tap Prioritize device. Choose a duration (1, 2, 4, or 8 hours). The prioritized device receives approximately 70% of available bandwidth during that window. Limitation: only one device can be prioritized at a time, and it’s always temporary.

Eero

In the eero app, go to Settings → eero Labs (or Advanced settings on newer firmware) and enable Smart Queue Management (SQM). This uses the fq_codel algorithm to reduce bufferbloat and latency under load — it’s more of a network-wide latency fix than per-device priority, but it dramatically improves responsiveness for gaming and video calls. Wi-Fi 6 eero models support this natively.

Linksys

Log in to your Linksys web interface and find the QoS or Device Prioritization section. Assign devices a priority level (High, Medium, or Low) to control how bandwidth is distributed when the network is congested.

Tips for Getting the Most Out of QoS

Enter your real speeds: Most routers ask for your ISP download/upload speed when configuring QoS. Enter your measured speed, not the advertised speed. Set it to about 80% of actual to prevent over-allocation errors.
Prioritize by use case, not device: Prioritizing “all traffic from my gaming console” is less effective than prioritizing “gaming traffic across all devices.” The latter ensures mobile gaming on a phone is also protected.
Don’t over-prioritize: If you mark everything as high priority, you’ve accomplished nothing. Reserve the highest tier for your one or two most latency-sensitive activities.
Test before and after: Run a speed test and a ping test while someone else streams video. Compare results with QoS on and off to confirm it’s actually helping.

Better Alternatives When QoS Isn’t Enough

QoS is a band-aid. If congestion is a daily problem, consider these more permanent solutions:

Wired Ethernet: A wired connection removes a device from WiFi airtime competition entirely. It has near-zero packet loss and inherently lower latency than any wireless connection. A gaming console or desktop PC on Ethernet benefits more than any QoS rule. See our guide on Ethernet vs WiFi speed for a full comparison.
Dedicated WiFi band: Many tri-band routers let you assign a specific 5 GHz or 6 GHz band exclusively to one device. Effectively gives it a private wireless channel with no competition.
Upgrade your internet plan: If you’re consistently saturating a 50 or 100 Mbps plan, QoS is a patch. Moving to 300–500 Mbps eliminates most congestion scenarios entirely.

The Bottom Line

QoS is one of the most underused features on home routers. Configured correctly, it can eliminate gaming lag, smooth out video calls, and prevent background downloads from ruining a live stream — all without spending a penny. Just remember: it redistributes bandwidth rather than creating it, and it works best on connections under 300 Mbps with multiple active users. If you’re looking for the right router to take full advantage of QoS features, check out our picks for the best routers for gaming and the best routers for working from home.