Overview
Slow internet can be caused by network congestion, weak Wi‑Fi signals, outdated
equipment, ISP issues, or software conflicts. This guide covers the most common
causes and how to improve your connection speed.
Common symptoms
- Web pages load slowly
- Videos buffer or drop quality
- Downloads take longer than expected
- Online games lag or disconnect
- Speed test results are lower than your plan
Possible causes
- Weak Wi‑Fi signal
- Too many devices on the network
- ISP congestion or outages
- Old or failing router/modem
- Background apps using bandwidth
- Incorrect DNS settings
- Malware or unwanted software
Step 1 – Restart your modem and router
- Unplug both devices.
- Wait 10–15 seconds.
- Plug them back in and wait for them to fully restart.
Step 2 – Check your Wi‑Fi signal strength
- Move closer to the router.
- Reduce obstacles like walls or appliances.
- Try switching to the 5 GHz band if available.
Step 3 – Run a speed test
Compare your results to your internet plan. If speeds are much lower, the issue
may be with your ISP or equipment.
Step 4 – Check for background bandwidth usage
- Press Ctrl + Shift + Esc to open Task Manager.
- Select Performance or Processes.
- Look for apps using high network activity.
Step 5 – Update your network drivers
- Open Device Manager.
- Expand Network adapters.
- Right‑click your Wi‑Fi or Ethernet adapter and select Update driver.
Step 6 – Change DNS servers
Incorrect or slow DNS servers can delay website loading.
- Open Settings.
- Go to Network & Internet.
- Select your connection and choose Edit DNS settings.
- Switch to Manual and enter preferred DNS servers.
Step 7 – Scan for malware
Malware can consume bandwidth or interfere with network settings.
- Open Windows Security.
- Select Virus & threat protection.
- Run a full scan.
Step 8 – Try a wired connection
If Ethernet is fast but Wi‑Fi is slow, the issue is likely wireless interference
or router placement.
Step 9 – Check your router age
Routers older than 5–7 years may not support modern speeds or standards.
Step 10 – Contact your ISP
- Ask if there are outages or maintenance in your area.
- Request a line test if speeds remain low.
When to seek additional help
- Speeds remain slow after all steps
- Router frequently disconnects or reboots
- Only certain devices experience slow speeds
- ISP confirms no issues but performance is still poor