Internet Speed Checker and troubleshooting internet Speed test

Click on the “Go” button on the Ookla Speed test to test the speed of your broadband connection.

Information on how to troubleshoot problems with your broadband can be below.

For a more accurate reading, run the Speedtest twice

Troubleshooting broadband internet performance Internet speed test - Slow Internet speedBefore starting to troubleshoot the performance of your broadband connection, you need to run the Internet Broadband speedtest and also confirm the exact Upload and Download speed that you are paying for.

You can get this information by checking a bill or contact to confirm this information.

Possible causes of slow internet speed

Is it the broadband that is slow or is it your device (PC/laptop/phone)?

You need to check how many applications are currently running on your device that could be utilising your system resources (mainly RAM memory and CPU) and/or your internet bandwidth.

If you are on a PC then you can use the task manager to check your processor and memory usage.

On any other device you should try restarting the device which should hopefully kill all programs that may have been running in the background.

Re-run the speed checker on your personal computer and your mobile to see how the speedtest results compare between the 2 devices.

This should hopefully provide you with some info to work with in terms of if the issue lies with your device or the internet connection.

Is your Wifi connection the problem?

The cause of the problem could be your Wifi network connection and not the broadband internet connection.

You could rule out the Wi-Fi network network being the cause of the problem by connecting your computer directly into the broadband router using an ethernet cable and run the speed checker again.

If speed is better when you are connected using a network cable then this proves that the problem may be with the Wifi network connection setup.

Possible things to check are:

  • Are the Wireless channels you’re using for your Wi-Fi network network (SSID) overlapping with the neighbors?
  • Could the Wi-Fi network signal from the router be obstructed?
  • Does the performance improve when your are standing directly in-front of the broadband or wireless router?
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Who is connected to my Wifi network?

Have you checked that your Wi-Fi network password has not been compromised? Do you have an open Guest Wifi network?

Neighbors could be on your Wifii network and using up all your bandwidth downloading/uploading or even streaming netflix! Worse still, they could be carrying out illegal activities which will all point to your connection.

There are two apps that you can use to scan your Wi-Fi network to check who is connected:

Both applications will scan your wireless network and show you a list of the connected devices.

Check out this tutorial on how to use both applications

Do I need a Wi-Fi network Booster for my broadband?

If you find that you have Wifi black holes in your home, then a Wifi extender also know as a Wi-Fi Booster is the fix to boost your signal. They are readily available online from around £15.

The wireless booster simply picks up your existing Wi-Fi network signal as it is starting to become weak and then re-transmits the Wifi network signal at a more stronger rate to extend it’s coverage.

Place the Wifi network booster/extender where your Wifi signal from the broadband router is starting to become weak.  Approxiametly where your wireless network signal drops down to two bars. Use your mobile phone to determine where this is.

When was the last time you upgraded your broadband router?

The and openreach infrastructure is constantly being upgraded to support new features (some customer facing and others internal).  Ensure that the broadband router has the latest software.

The majority of broadband routers will allow you to perform the software update by logging on the broadband router and simply clicking a button to perform the update.

If you can’t do this, contact and they are able to either do this for you or guide you through how to do it depending on the router model you have.

As well as upgrading the software, if you have had the same hardware for a long period, it’s worth speaking to to request for a router upgrade.

Is the issue external (at the exchange)?

This is probably the most likely reason for broadband performance issue in your home and is more common with broadband connections that are delivered through phone lines.

If you’re not sure if this is relevant in your case, you should contact who will be able to run the relevant connection tests to check if there is a fault on the internet connection.

Is it due to Broadband congestion?

If you’re finding that the internet connection speed in your area is slow during certain times e.g weekends and during the evening, it may be because of congestion during peak times.

You should speak to your to understand if the service you have subscribed to has a minimum speed or is  a contended ‘first come first serve’ service with no minimum speed guaranteed.

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Re-testing your broadband connection

After the issue has been fixed either by yourself or, retest your internet connection using  at least 2 independent speedtests such as the one here and Ookla internet speedtester to ensure the fault is fixed.

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