Why Is My Download Speed Suddenly So Slow

Reasons Why is my Upload Speed So Slow. While we discuss the importance of uploading rate and we ask ourselves questions like – why my upload speed is so slow, you should look into the reasons for the slowness. Knowing the exact reason of slowness, you can fix your Internet uploading rate at ease. Reasons for Slow Download Speed on PC. Many users complain that the download speed is so slow that it takes a long time to download something. This can hamper both business and personal operations. So when you see that download chugging along at 5MB/s, that means megabytes per second–as opposed to your 40Mb/s, or megabits per second, internet package. (Note the MB vs Mb notation.) If we divide the speed of your connection (measured in megabits) by 8, we arrive at something resembling the download speed you’re seeing in your speed. The use of any VPN should cut your speed considerably, so the speed tests should show a discrepancy, with the VPN-active speed notably slower than the VPN-inactive speed. Why Is My Download Speed So Slow When I Have Fast Internet? By CFIadmin October 19, 2020 Speed Test 0 Comments There can be several reasons that the speed of your internet may appear slow even when you have subscribed for a high-speed internet connection.

There can be several reasons that the speed of your internet may appear slow even when you have subscribed for a high-speed internet connection. The reasons can be anything from issues with your modem or router, weak WiFi Signal, to other devices consuming the bandwidth, or having a slow DNS server. If your internet’s download speed is also slow even when you have a fast internet connection, you can overcome the problem by following the workarounds provided below.

Why Is My Download Speed Suddenly So Slow Video

Guide to Fix Slow Download Speed Issues With Your High-Speed Internet Connection

  1. Check If the Problem Is With your Device or Website You Are Using

When facing issues with the downloading speed on your high-speed internet connection, the first thing you will need to ensure is that the problem is not with the device you are using or the website you are accessing. To check that, you will need to connect your internet to multiple devices and websites. If the slow download speed is only with a particular device or website you are using for the downloading process, this means that the problem is with your device or browser. In such a case, if the problem is with the device you are using to download, you will need to use a different device; however, if the problem appears to be with the web browser you are downloading from, you will need to look for an alternative source to download the file or application you are looking to download.

  1. Test Your Internet Speed and Compare With Your Plan

Before you try to consider using the other workarounds, it is best to test the speed of your internet. There are numerous speed testing websites available online that you can use to check the speed. However, when testing the speed, make sure that no downloads, uploads, streaming, or heavy internet activity are going on. Once you get the readings of your internet speed on the website, you will need to compare it with the speed you are supposed to get for your internet plan. If the speed you tested appears to be lower than what your internet plan offers, you will need to contact your Internet Service Provider (ISP) to resolve the issue.

NOTE: Before contacting your ISP, it is best to check the speed of your internet on a couple of speed testing websites. This way you will be able to get a better idea of your internet speed.

  1. Restart Your Modem and Router

Just like computers, sometimes your modem and router can also get into a slow, bad, or overloaded state, which can lead to issues with speed and connectivity of your internet connection. In such a case, the best to overcome the problem is by rebooting your modem and router. To reboot them, all you will need to do is unplug the devices from their power source for at least 10 seconds. After 10 seconds, re-plug the wires to the power outlet and turn on your modem and router. Wait till the lights on your devices get stable and then check the speed of your internet.

  1. Check Your Wi-Fi Signal

While your internet connection must be working fine, however, if you are using Wi-Fi to connect your devices to the internet, the issues can be with it. One of the most common issues with a WiFi device can be that it is being congested by multiple devices, especially when you are on a 2.4 GHz connection instead of 5 GHz. As you might be having multiple devices being used by different members, you may want to switch to a 5 GHz connection to decongest your WiFi device. Another reason for the slow download speed of your high-speed internet connection can be the location of your WiFi device. Make sure that the location of your WiFi router is such that all your devices are receiving a complete signal. Also, it is suggested to ensure that your WiFi connection is password-protected; otherwise, your neighbors might take advantage of it, leaving you with a slow speed connection.

  1. Switch to Another DNS Servers

As the slow downloading speed issue with your internet connection can also be caused due to slow DNS server, it is suggested to consider switching your DNS server. As DNS servers are provided by your Internet Service Provider, you will need to contact them to get your DNS server checked and switched.

So, these are the different workarounds that should help you fix issues with the slow downloading speed of your internet connection.


If you’ve found that your download speed is great, but your upload speed isabysmal, I’ve got a possible solution for you. I struggled with this issuefor a while and decided to write down my findings in a blog post in case I, oranyone else, runs into this in the future.

In fact, this is the second such blog post I’m writing: a couple years ago,I hit the the inverse issue and documented the solution in a blog post calledGot slow download but fast upload speeds over wireless? Here’s afix.That post has had several hundred thousand views and helped many people (checkout the comments—I even got a marriage proposal), so I’m hoping this postwill be useful too!

Here’s your tldr: upgrade your router’s firmware.


I noticed that on all my devices - a Macbook Pro, iPhone, Windows desktop -webpages were sometimes taking a long time to load; it was a bit intermittent,but everything from google maps to gmail suddenly got very sluggish. I haveone of their higher tier Internet plans from Comcast, so this was prettydisappointing.

I ran a bandwidth test onhttp://www.speedtest.net/ and the results wereroughly the same across all of my devices:

At 57 Mb/s, the download speed was great; however, the upload speed was a mere0.17 Mb/s, which is pretty much unusable. In fact, I had to re-run the testseveral times, as occasionally, the upload portion of the test would get stuckand never complete.

The solution

I tried rebooting the router, the cable modem, tweaking a bunch of settings,but nothing helped. I also checked with Comcast to ensure there were no issuesour outages in my area, and of course, everything was fine.

Download Speed Is Slow

Finally, I stumbled upon the solution: a firmware upgrade. My router, aCisco/Linksys E1200, was using firmware version 2.0.02. I went over toLinksys’ supportpage,found my router, and saw that a newer version, 2.0.06, was available. Here’s asnippet from the release notes:

Why Is My Download Speed Slow

The notes for version 2.0.04 are especially interesting, as they fix bugs with WMM(which was the cause of problems in my previous blogpost),QoS, and more.

Ultra instinct games online. I figured it was worth a shot, downloaded the 2.0.06 firmware, and installedit through my router’s admin UI. The instructions for upgrading the firmwarewill not be the same for all routers, but here’s roughly what you need to do:

  1. Go to []( and login to your router.If you've never done this, look for instructions that came with your router ordo a google search to find the default username and password.
  2. Click on 'administration'.
  3. Click on 'firmware upgrade'.
  4. You should see a page like this:
  5. Click 'Choose File' and select the firmware file you downloaded.
  6. Click 'Start Upgrade'. DO NOT unplug your router or click anything else inthe meantime; let the upgrade complete!
  7. Wait a minute or so for your router to reboot.

Why Is My Download Speed Suddenly So Slow

The results

After the router restarted, I re-ran my speed test, and the results weremuch nicer:

The download speed is still a zippy 57 Mb/s, but now the upload speed isfast too, at 11 Mb/s, or nearly 70x faster than what it was before.Woohoo!

Why Are My Downloads So Slow

I hope you found the post helpful. If your router has a differentfirmware upgrade process, leave a comment with the steps you followed soothers can find it. Happy web browsing!