Apps eating all bandwidth: how to limit traffic for other applications?

Updated: April 2026

Stop Background Apps From Hijacking Your Bandwidth

You hop on a video call and within seconds the feed pixelates, voices stutter, and then the whole thing drops. Meanwhile, a system update is downloading in the background, someone else on your network fired up a torrent, and YouTube is auto-playing in a forgotten tab. All of these silently eat the bandwidth your call needs. The fix: identify the culprits and either throttle or pause them before your next meeting.

How to identify what's consuming bandwidth

  1. Press Ctrl + Shift + Esc → Task Manager opens.
  2. Go to the Performance → Network tab.
  3. Click Details → Network — you'll see a list of processes and their traffic.

Typical bandwidth hogs:

  • Windows and application updates;
  • Cloud services (Google Drive, OneDrive, Dropbox);
  • Torrent clients (uTorrent, qBittorrent);
  • Streaming video (YouTube, Netflix, Twitch);
  • Games and launchers (Steam, Epic Games Launcher).

Ways to limit application bandwidth

1. Through built-in Windows 10/11 settings

  1. Open Settings → Network & Internet → Data usage.
  2. Click View usage per app.
  3. Identify which programs are consuming the most traffic.
  4. For system updates you can set a limit:
    • Settings → Windows Update → Advanced options → Delivery Optimization.
    • Set download speed limit (for example, 50%).

2. Using third-party software

If you need precise traffic control, use utilities:

  • NetLimiter — precise control of download and upload for each process.
  • GlassWire — monitoring + limiting + visual statistics.
  • cFosSpeed — traffic prioritization by application (Zoom, Teams, OBS).

For example, in NetLimiter you can set: 

Zoom.exe — 5 Mbps Upload, high priority
uTorrent.exe — 0.5 Mbps Upload, low priority

3. Setting up priorities on the router (QoS)

  1. Access your router's control panel (192.168.0.1 or 192.168.1.1).
  2. Open the QoS (Quality of Service) section.
  3. Enable prioritization for:
    • Zoom / Teams / Skype;
    • your device (by MAC address);
    • or the Ethernet port your computer is connected to.
  4. Save settings and restart the router.

4. For macOS

On Mac you can use TripMode — an app that blocks internet access for selected programs, saving traffic and improving video call stability.

Smart Traffic Habits

  • Before any call, close or pause apps that pull large amounts of data.
  • Defer OS and game updates until after hours.
  • Use a wired connection for your primary work device — leave Wi-Fi for phones and tablets.
  • Avoid streaming HD video on a second device while you're in a meeting.

The Takeaway

Most call-quality issues aren't about speed — they're about competition for bandwidth. Taming background downloads, enabling QoS on your router, and staying aware of what's running on your network will keep Zoom and Teams buttery smooth even on a modest connection.

See how your bandwidth holds up under real conditions on DoCam.io.