Why is My Upload Speed So Slow ? What Causes it and How to Fix

It is frustrating to start posting files or an online video call with friends only to find out that your connection is slow. If you have to transfer massive amounts of data to the cloud or work on projects where people are located in different areas with low upload speed, it becomes really inconvenient. This article delves into the reasons behind why the upload speed is sometimes extremely slow and provides a guide on how to go about it.

What is Upload Speed?

So let me first tell you what upload speed is. This is the speed with which the data is transferred from your device to the internet normally measured in megabits per second (Mbps). Although download speed is generally considered more important as it allows obtaining data, upload speed is crucial for video calls or transferring documents to the cloud.

Why is My Upload Speed So Slow ? What Causes it and How to Fix
Why is My Upload Speed So Slow ? What Causes it and How to Fix

Common Causes of Slow Upload Speeds

1. Internet Service Provider (ISP) Limitations

One significant factor influencing upload speed is your ISP's plan. Many ISPs provide higher speeds than upload speeds, often with considerable disparities. For instance, your plan might offer a 100 Mbps download speed but only 10 Mbps upload speed.

2. Network Congestion

Multiple devices connected to your network simultaneously can lead to congestion, slowing upload speeds. Activities like streaming videos, online gaming, and other data-heavy tasks can consume significant bandwidth.

3. Outdated or Poor Quality Router

An old or low-quality router can restrict your internet speed. Routers have a capacity for handling data, and if yours is outdated, it may not support higher speeds, resulting in slow uploads.

4. Wi-Fi Interference

Wi-Fi signals can be disrupted by physical barriers like walls, floors, and even other electronic devices. Being far from your router or having many obstructions can negatively impact your upload speed.

5. Malware or Viruses

Malware or viruses on your device can slow down your internet speed. These malicious programs can use up bandwidth, leading to slower upload speeds.

6. Background Applications

Background applications running on your device can also consume bandwidth. Software updates, cloud backups, and other background processes can reduce the available bandwidth for uploading files.

7. Network Configuration Issues

Incorrect network settings can sometimes affect your upload speed. This can include misconfigured Quality of Service (QoS) settings or incorrect MTU (Maximum Transmission Unit) settings.

How to Fix Slow Upload Speeds

1. Check Your Internet Plan

Begin by checking the upload speed offered by your ISP. If your plan provides low upload speeds, consider upgrading to a plan with higher speeds. Contact your ISP for details and options. Read on How To Fix Mobile Hotspot Connected but No Internet on Android

2. Reduce Network Congestion

Limit the number of devices using the internet simultaneously. You can also schedule high-bandwidth activities like downloads and updates for times when the network is less busy.

3. Upgrade Your Router

If your router is old or of low quality, consider upgrading to a newer model. Look for routers that support the latest Wi-Fi standards (such as Wi-Fi 6) and have good performance reviews.

4. Optimize Wi-Fi Placement

Place your router in a central location in your home, free from obstructions. Ensure it is elevated and away from other electronic devices that might cause interference.

5. Scan for Malware

Regularly scan your device for malware and viruses using reliable antivirus software. Remove any detected threats to ensure they aren't consuming your bandwidth.

6. Close Background Applications

Check your device for background applications that might be consuming bandwidth. Close unnecessary applications and disable automatic updates during times when you need faster upload speeds.

7. Adjust Network Settings

Sometimes adjusting your network settings can help. Access your router's settings and configure QoS to prioritize upload traffic. Ensure MTU settings are correctly configured to avoid data fragmentation.

8. Use Ethernet Connection

For a more stable connection, consider using an Ethernet cable instead of Wi-Fi. Wired connections tend to offer more consistent speeds and are less prone to interference.

Table: Common Causes and Fixes for Slow Upload Speeds

ISP LimitationsPlan offers low upload speedsUpgrade your internet plan
Network CongestionMultiple devices using bandwidthLimit devices, schedule high-bandwidth activities
Outdated RouterOld router not supporting higher speedsUpgrade to a newer router
Wi-Fi InterferencePhysical obstructions, electronic devices causing signal disruptionOptimize router placement, reduce obstructions
Malware/VirusesMalicious programs consuming bandwidthScan and remove malware/viruses
Background ApplicationsApps running in the background consuming bandwidthClose unnecessary applications, disable automatic updates
Network Configuration IssuesIncorrect settings affecting performanceAdjust QoS and MTU settings, reset router if necessary

A Few More Tips

Regular Maintenance

Just like a car, your network equipment needs regular maintenance. Reboot your router periodically, update its firmware, and check for any unusual activity. This helps keep your network running smoothly and can improve both upload and download speeds.

Consider Professional Help

If you've tried everything and your upload speed is still slow, it might be time to call in a professional. A technician can diagnose and fix issues that might not be apparent to the average user.

Use Speed Test Tools

Regularly check your internet speed using tools like Speedtest.net or Fast.com. This helps you monitor your upload and download speeds and ensures you're getting what you pay for from your ISP. Read comprehensive article on How to check your internet speed.


Slow upload speeds can be a significant hindrance, especially in a world that increasingly relies on fast and reliable internet connections. By understanding the common causes and implementing the suggested fixes, you can significantly improve your upload speeds. Whether it's upgrading your internet plan, optimizing your router placement, or reducing network congestion, each step can contribute to a smoother and more efficient online experience. So, take a deep breath, follow these tips, and get ready to say goodbye to slow uploads.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Back to top button