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How To Increase Upload Speed Xfinity

Upload Speed Test

Xfinity, a US telecommunication company, provides top-notch, next-generation internet services to its subscribers. While the download speed works fine, users often experience a sluggish upload speed.

Quick Answer

It is possible to increase upload speed on Xfinity by updating the PC to the latest version, using a wired connection instead of WiFi, scanning the system for malware, limiting WiFi access, and ensuring the modem or router is working fine.

Slow internet speed can be annoying for you if you want to upload a large file, upload a presentation or document immediately, or/and backup essential data.

Fast uploading speed is a necessity in this day and age. We’ll explore why Xfinity’s upload speed slows and guide you with step-by-step methods to fix the issue.

Why Is My Xfinity Upload Speed So Slow?

There can be multiple reasons for slow upload speed. Some of the most common ones can be:

  • Too many devices are connected to an Xfinity network.
  • Presence of Malware.
  • Outdated operating system.
  • Corrupted junk files.
  • Use of third-party firewalls.

Increasing Xfinity Upload Speed

Boosting Xfinity upload speed can be a daunting task for an average user. However, our step-by-step instructions will take you through the entire process by keeping you away from all the techy stuff.

We’ll also discuss disabling third-party firewalls for better upload speed. But, first, here are the three conventional methods that you can try to increase Xfinity upload speed.

Method #1: Resolve OS Issues

Sometimes, an outdated OS, temporary junk files, and an unstable WiFi connection is the root cause of the upload speed issue on Xfinity. Luckily, you can try the following steps in a sequence to resolve the problem.

Step #1: Update Windows

From your desktop, click on the Start button at the bottom-left corner. Go to Settings > Update & Security and click on the Windows Update tab on the left sidebar. Next, select the Check for Updates button to begin downloading available updates.

Step #2: Delete Temporary Files

Click on the Start icon on the desktop and type in Disk Cleanup in the search dialog box. Now, select Disk Cleanup, choose the drive you want to clean up, and click OK. Select the temporary junk file types under the Files to Delete option and click OK to delete.

Deleting Temporary Files On Windows

Step #3: Use a Wired Connection

If the above two steps fail to enhance the upload speed, disable WiFi on your PC and use an Ethernet cable to connect it to the Xfinity router/modem. Wait for the internet connection to restore automatically.

Information

If the internet does not connect automatically, troubleshoot your connection by going to Network Connections and clicking on the Ethernet option in the left pane.

Step #4: Scan Your PC

Click on the Start icon on the desktop and head towards Settings > Update & Security. Navigate further to Virus & threat protection > Scan options > Windows Defender Offline scan. Select Scan Now and wait for Windows to complete the process.

Fixing these PC-related issues can help improve Xfinity upload speed.

Method #2: Limit WiFi Access

  1. Open your browser and input the router address in the address bar.
  2. Input your Xfinity login credentials (username and password).
  3. Open the Wireless tab, click on the box labeled Password, and change it with a unique one.
  4. Click on Save after updating the password.

Method #3: Troubleshoot Modem/Router

  1. Check the lights on the Modem/Router.
  2. Check the Power Supply and Cables to ensure that the connections are not bent or loose.
  3. Reboot the modem/Router to clear any temporary technical issues.
Warning

Place your Xfinity router/modem in a ventilated area and at least 6-inches away from other devices, as overheating can cause slow upload speed.

Method #4: Disabling Third-Party Firewalls

Third-party firewalls act as locked gates and block hackers or intruders from accessing crucial information on your computer by permitting the safe passage of required applications.

They’ll show up whenever an app on your PC starts an outgoing connection so that you can control the apps that can access the internet and might threaten the system. However, these firewalls can cause connectivity issues.

You can disable these third-party firewalls to improve Xfinity upload speed. However, doing so may compromise your entire network and can introduce potential threats. So you should only try disabling them if nothing else works.

Summary

In this guide about how to increase Xfinity upload speed, we discussed the reasons behind the slow upload speed and shared multiple methods you can use to resolve this issue. We’ve also discussed the possibility of active third-party apps resulting in sluggish speed.

Hopefully, one of the fixes worked for you, and now you can upload anything quickly on the Xfinity network. However, if the issue persists, contact Xfinity support staff so that they can resolve backend hiccups.

Frequently Asked Questions

Does Uploading Affect Download Speed?

Yes, it does. If you upload a large file or several documents, the files you are downloading might get delayed, or the process might slow down.

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