How to properly prioritize Wi-Fi connections between devices on your network

In a modern home, there are dozens of devices connected to Wi-Fi: smartphones, laptops, smart speakers, surveillance cameras, game consoles, and even refrigerators. All of them compete for limited bandwidth, resulting in lag in online games, stuttering video calls, or buffering 4K video. The solution is smart Wi-Fi prioritization through the router settings.

But how exactly do you do this? Is it enough to simply set the TV to "high priority," or do you need to dig deeper and configure QoS (Quality of Service), limit the speed of background traffic, or separate networks by frequency? In this article, we'll cover all the methods—from basic to advanced—that will help optimize your Wi-Fi network without purchasing new equipment.

Important: Not all routers support advanced traffic management features. If your device doesn't have this section, QoS or Bandwidth Control, you may need to update your firmware or consider upgrading to a model that supports it. MU-MIMO And OFDMA (For example, ASUS RT-AX88U or TP-Link Archer AX6000).

1. Basic principles of Wi-Fi prioritization

Before you go into your router settings, you need to understand which devices and tasks really require priority. For example:

  • 🎮 Game consoles (PlayStation 5, Xbox Series X) - are sensitive to ping (latency) even under low network load.
  • 📺 4K/8K TVs and media players (Apple TV 4K, NVIDIA Shield) - require a stable speed for streaming video.
  • 💼 Work laptops — video conferences (Zoom, Microsoft Teams) suffer from speed drops more than file downloads.
  • 📱 Smartphones - can usually wait unless a mobile hotspot is used.

And here's what no need prioritize unless absolutely necessary:

  • 🔄 Smart Home (Philips Hue, Xiaomi Mi Home) - devices exchange minimal traffic.
  • 🖨️ Printers and MFPs — printing does not require high speed.
  • 📷 IP cameras - If there is no real-time broadcast, the bandwidth can be limited.

The mistake many users make is trying to "equalize" all devices. In practice, this leads to gaming traffic starts competing with background downloads of Windows updates, and video calls are interrupted due to cloud storage synchronization.

📊 Which device most often slows down due to Wi-Fi?
Game console
Smart TV
Laptop for video conferencing
Smartphone
Smart speaker
Other

2. Method 1: Setting up QoS (Quality of Service) on the router

QoS (Quality of Service) is a technology that allows a router classify traffic and distribute bandwidth depending on the type of data. For example, packets from Zoom will have priority over downloading torrents.

How to enable QoS:

  1. Go to the router's web interface (usually at 192.168.1.1 or 192.168.0.1).
  2. Find the section QoS, Traffic Control or Bandwidth Control (the name depends on the model).
  3. Enable QoS and select the mode:
    • 🔄 By devices (priority to specific MAC addresses).
    • 📊 By traffic type (priority to voice/video packets).
    • ⚖️ Hybrid (a combination of two approaches).
  • Please specify maximum outgoing/incoming speed (You can find out from your provider or test it on Speedtest.net).
  • Save the settings and reboot the router.

    • An example of setting up QoS for devices on a router TP-Link:

    1. Go to Advanced → QoS → Settings.
    2. Turn on QoS and select By Device.
    3. Add the MAC addresses of the devices (you can find them in DHCP Client List).
    4. Set priorities: Highest (higher), High, Medium, Low.

    ☑️ Check before setting up QoS

    Completed: 0 / 4

    An important nuanceQoS works more efficiently on routers with processors that are not weaker 1 GHz (For example, ASUS RT-AX86U or Netgear Nighthawk RAX50). On budget models (TP-Link TL-WR840N) Enabling QoS can, on the contrary, reduce overall speed due to insufficient productivity.

    ⚠️ AttentionIf your speed drops by more than 20% after enabling QoS, try disabling the feature or reducing the number of rules. Some routers aren't optimized to handle complex traffic policies.

    3. Method 2: Manual speed limitation (Bandwidth Control)

    If QoS is not available or fails to cope, you can manually limit speed For bandwidth-hungry devices. This is especially true when one laptop is downloading torrents, while the others lack the speed to function properly.

    Instructions for routers ASUS:

    1. Go to Adaptive QoS → Bandwidth Limiter.
    2. Add a new rule by specifying:
      • IP or MAC address of the device,
      • Maximum bootable (Download) and giving away (Upload) speed.
  • Apply settings.

    • Example of limitations for a typical network on 100 Mbps:

    Device Max Download (Mbps) Max Upload (Mbps) Priority
    Game console (PS5) 50 20 High
    Smart TV (LG OLED C2) 40 10 Average
    Laptop (video conferencing) 30 15 High
    Smartphone (background sync) 10 5 Short
    IP camera (Xiaomi Mi Home) 5 2 Short

    For routers MikroTik the setting is carried out through Queue Tree:

    /queue simple add name="Limit_Torrent" target=192.168.88.100/32 max-limit=10M/5M

    AdviceIf you don't know what limits to set, start with 50% of maximum speed for critical devices and 10-20% for background traffic. Then adjust based on test results.

    4. Method 3: Separating the network by frequencies (2.4 GHz vs. 5 GHz)

    Many modern routers support dual-band mode (2.4 GHz and 5 GHz). These frequencies differ not only in speed, but also resistance to interference:

    • 📶 2.4 GHz — better through walls, but susceptible to interference from neighbors and household appliances (microwaves, cordless phones). Suitable for devices located far from the router.
    • 🚀 5 GHz — higher speed and less interference, but less penetration through obstacles. Ideal for devices in the same room as the router.

    How to distribute devices:

    • 🎮 Game consoles and PCs — connect to 5 GHz for minimal ping.
    • 📺 Smart TV and media players - If the TV is far away, use 2.4 GHz, but with QoS priority.
    • 📱 Smartphones and tablets - let them select the frequency automatically (or switch manually to 5 GHz under high load).
    • 🏠 Smart Home - leave it on 2.4 GHz, since many sensors do not support 5 GHz.

    On routers ASUS And TP-Link Can forcefully separate networks by frequencies, assigning them different names (SSID):

    • MyWiFi_2G — for 2.4 GHz,
    • MyWiFi_5G — for 5 GHz.

    This will allow you to manually connect devices to the desired frequency. Keenetic a similar setting is in Wi-Fi Network → Access Point.

    ⚠️ Attention: Some devices (like old printers or smart light bulbs) work only on 2.4 GHzIf they stop connecting after splitting the network, return to the common SSID or create a separate network for legacy devices.

    5. Method 4: Prioritization by traffic types (DSCP, Port-Based QoS)

    Advanced routers (eg. Ubiquiti UniFi, MikroTik) allow you to set priorities not only by devices, but also by types of traffic, using:

    • 🔖 DSCP marks (DiffServ Code Point) - marking of packets at the IP level.
    • 🔌 Ports (Port-Based QoS) — priority for traffic on specific ports (for example, UDP 3478-3479 For PlayStation Network).
    • 📦 Deep Packet Inspection (DPI) - analysis of packet contents (for example, prioritization for YouTube or Netflix).

    Examples of settings for popular services:

    Service Protocol/Port DSCP (if supported) Priority
    Zoom/Microsoft Teams UDP 3478-3481 EF (46) High
    PlayStation Network UDP 3478-3479, TCP 80, 443 AF41 (34) High
    Netflix/YouTube TCP 443 (HTTPS) AF31 (26) Average
    Torrents (uTorrent, qBittorrent) TCP/UDP (dynamic) CS1 (8) Short

    Setting up on MikroTik:

    /queue simple add name="Zoom_Qos" dst-port=3478-3481 protocol=udp \

    target=0.0.0.0/0 queue=default-small/default-small \
    

    priority=1/1 limit-at=0/0 max-limit=0/0 dscp=46

    On routers ASUS with firmware Merlin can be used Adaptive QoS → Game for automatic prioritization of gaming traffic.

    How to find ports for your application?

    Open Command line (Windows) or Terminal (macOS/Linux) and run the command: 

    netstat -ano | findstr "process_name.exe"

    For Zoom it could be Zoom.exe, For Steam — Steam.exeThe output will indicate local and remote ports.

    6. Method 5: Using a guest network for low-priority devices

    If your router has this feature guest network, it can be used to isolate "secondary" devices. A guest network typically has:

    • 🔒 Separate SSID and password.
    • 🚫 Limited access to the local network (not visible to other devices).
    • ⚡ Limited bandwidth (manually configurable).

    How to set up:

    1. In the router's web interface, find the section Guest network (Guest Network).
    2. Turn on the guest network 2.4 GHz or 5 GHz (or on both frequencies).
    3. Set a speed limit (eg. 10 Mbps).
    4. Connect devices that don't require high priority to the guest network:
      • 📱 Guests' smartphones,
      • 🔄 Smart bulbs and sensors,
      • 🖨️ Printers and scanners.

    The advantage of this method is complete isolation guest devices from the main network, which further increases security.

    ⚠️ Note: On some routers (e.g. TP-Link Archer C7) the guest network has a default low priority Even without manual restrictions. Check the documentation for your model.

    7. Advanced Methods: VLAN and Multiple SSIDs

    For offices or homes with a large number of devices, you can go further and use:

    • 🌐 Multiple SSIDs - creation of separate networks for different types of devices (for example, Work_WiFi, Guest_WiFi, IoT_WiFi).
    • 🔗 VLAN (Virtual LAN) — logical division of the network at the router or managed switch level.

    Example setup for Ubiquiti UniFi:

    1. Create new networks in Settings → Wireless Networks.
    2. Assign each network a separate one VLAN ID (For example, VLAN 10 for work, VLAN 20 for guests).
    3. IN Firewall Configure traffic prioritization rules between VLANs.

    For home use, this is overkill, but in an office or large apartment with dozens of devices, this approach provides:

    • 📈 Flexible traffic management.
    • 🔒 Increased security (isolation of IoT devices from work PCs).
    • ⚡ Ability to assign different QoS rules for each VLAN.

    On routers Keenetic Similar functionality is available through Network segments.

    8. Diagnostics and testing after settings

    After changing priorities, be sure to check:

    1. Internet speed on key devices (use Speedtest.net or Fast.com).
    2. Ping for gaming devices (in games or through ping google.com -t (in the command line).
    3. Video stream stability (is there any buffering on YouTube in 4K resolution).
    4. Background traffic (does it slow down file loading on other devices?)

    If the results are unsatisfactory:

    • 🔄 Check if QoS rules conflict with each other.
    • 📡 Make sure your devices are connected to the correct frequency (5 GHz for close devices, 2.4 GHz for distant ones).
    • 🔧 Update your router firmware (sometimes software bugs can mess up QoS settings).

    To monitor traffic in real time, use:

    • GlassWire (Windows/macOS) - shows which applications are consuming traffic.
    • Fing (mobile app) - scans the network and shows the speed for each device.
    • Built-in Traffic Monitor in the router (available on ASUS, TP-Link, Keenetic).

    If problems persist after all the settings, it may not be a matter of priorities, but rather:

    • 📶 Overload of the provider's channel (check the speed on a PC connected via cable).
    • 🔌 Router malfunctions (overheating, outdated firmware).
    • 🏠 Interference from neighbors (use a Wi-Fi analyzer, for example NetSpot, to select a free channel).

    FAQ: Frequently Asked Questions about Wi-Fi Prioritization

    Is it possible to set Wi-Fi priority without QoS?

    Yes, even if your router doesn't have QoS, you can:

    • Separate devices by frequencies (2.4 GHz And 5 GHz).
    • Use guest network for low-priority devices.
    • Limit speed manually via Bandwidth Control.

    However, without QoS, prioritization will be less flexible.

    Why did my internet speed drop after enabling QoS?

    This is a typical problem with weak routers. Possible causes:

    • The router's processor cannot handle QoS rules.
    • Too many rules or speed limits too low.
    • Conflict with other functions (eg. Parental Control or VPN).

    Solution: Try disabling QoS and using alternative methods (frequency separation, speed limiting).

    How do I prioritize traffic on a router from a provider (for example, from Rostelecom)?

    Routers from providers (for example, Sagemcom or Sercomm) often have limited functionality. Options:

    • 🔧 Check if there is a section in the web interface QoS or Traffic prioritization.
    • 📞 Contact your provider's support team—sometimes they can enable QoS remotely.
    • 🔄 Buy your router and set it up in mode Bridge (bridge).

    If nothing helps, the only options left are frequency separation and manual speed limitation.

    Do I need to set priorities if I have 1 Gbps internet?

    Even at high speed, prioritization is relevant because:

    • 🎮 Ping In games, it doesn't depend on the speed, but on the stability of the connection.
    • 📺 4K/8K streaming requires stable speed, not just high.
    • 💼 Video conferencing may be interrupted due to background traffic (such as cloud sync).

    QoS will help avoid lags even on a gigabit channel.

    Is it possible to prioritize traffic at the provider level?

    No, providers do not provide users with access to QoS settings on their equipment. However, some tariffs (for example, "Gaming") Beeline or MTS) involve traffic prioritization on the provider's side to reduce ping in games. Check this when connecting.

    📖 Read also

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