Windows

SOLVED: ERR_CONNECTION_RESET

ERR_CONNECTION_RESET is an error which usually comes up when the site you are trying to visit cannot establish connection with the destination site. Your other sites may work, but certain sites wont. Now there are several causes which could be the cause of the issue so you will have to follow each method and stop at the one that works for you.

In my experience, i have always found this error to be a result of  making changes in registry, tcpip or other network settings. This can happen without your knowledge, because it is usually changed by third party programs, most commonly pc optimization softwares, BUT can also be because of anti virus or other third party firewalls.

Method 1: Use a VPN

Using a VPN can by pass restrictions in place by your Internet Provider or by the site you are accessing in case they have limited or blocked your access to there servers therefore i suggest using a VPN as a first step, you can try out CyberGhost from (here).

Method 2: Disabling Anti Virus Protection

Disable your firewall and real time scanning if supported by your anti virus program. You can do this by right clicking on the anti-virus icon located at the bottom right corner near where the clock is. After it has been disabled restart your browser and test. This will be temporary, if after disabling the issue is fixed, then uninstall and reinstall your AV program.

Method 3: Setup MTU (Maximum Transmission Unit)

This is the one thing we usually do not look at, but without our knowledge if the incorrect mtu is setup, this could also possibly lead to that error. To set this value, we first need to get the name of our network adapter.

The quickest way to do that is to Hold the windows key and Press R and type ncpa.cpl

ncpa

You will see all the network connections listed. Copy the name of the active adapter, exactly as it is.

network adapters

The ones highlighted are the network names.

Then, hold the windows key and press R

Type cmd to open command prompt.

In the command prompt, type the follow command:

For a Ethernet Connection Use:

netsh interface ipv4 set subinterface "Local Area Connection" mtu=1472 store=persistent

For a Wireless Connection Use:

netsh interface ipv4 set subinterface "Wireless Network Connection" mtu=1472 store=persistent

replace Local Area Connection/Wireless Network Connection with the name of your network adapter and hit Enter.

command

Update 23/10/2018: If you are a visitor from India using Reliance Jio Network then this issue is most likely triggered by Reliance blocking certain websites.

55 Comments

  1. Hi Kev. I tried the (correct win 7 syntax) set cmd but no luck. if i uninstall my wireless adapter and reboot i can launch browser immediately and get to site a few times but after 10-20 seconds if i try to load the URL i get ERR_CONNECTION_RESET. after that i cannot get to the site again. (in safe mode i can get to it every time) I did this with firewall and antivirus completely disabled so i think something is trying to attach/load later (during my browser session) that is corrupting the situation. any advice on how i can diagnose/see what is loading and then perform a step by step analysis of those programs/services/processes to see which one is causing the problem? thanks!

  2. Hello! and Thanks!!! You were absolutely correct!!! Now, I know how to use netsh to set the mtu to 1490 (it was 1500) which 1490 works fine. but, can you tell me where/how to have my system set it to 1490 every time? is this done in a batch file? or is there a place in windows or elsewhere that i can fix it permenanently? (i still cannot tell which program is making the change to 1500)…. thanks again!

  3. You can create a batch file and task it to run automatically but that is not the solution. Default windows defined mtu works, but since this is an issue caused by one of the programs, you need to find it and remove it. I suggest doing a clean boot.

  4. Thanks…Did that right before your reply. Will this help (you think) with trying to hook up with a good free antivirus (AVG, Avast…) used both in the past, but new PC is a refurbished DELL running Windows 7 and it will surf-but besides Chrome, every attempt to download shot back the ERR-CONNECTION error. Chrome worked okay, and I am reloading that right now on that DELL…but even dropping defender and firewall wouldn’t allow antivirus download-I even have my last AVG on USB drive and could start and update

  5. AVG Free is better then avast. This indicates that something else may be wrong with your PC so in my opinion rather then spending hours troubleshooting whats wrong, i would suggest simply re-installing Windows to get rid of all errors.

  6. Yeah-somethings up. Came closer that time, download page thought, blinked, stuttered, then wen to ERR message again

  7. Tried both and still running into the same issues. Tried uninstalling and reinstalling but still no fix

  8. User side and client side are same. It can be a user side and can also be a server side. If the site doesn’t open on any of your other devices on different networks; then it’s the server side but if it does open then it’s the client side.

  9. I tried the above advice and it did not work. Do I need to undo what I did since that obviously was not the issue?

  10. If you have changed the MTU settings; then you don’t need to undo it because what i have mentioned in this guide is what the default should be.

  11. Where do I do this? “Replace Local Area Connection with the name of your network adapter and hit Enter.”

  12. I still don’t understand. I typed the “netsh etc. in the cmd and hit enter. It then said “OK”. And what then? My Lan is called ” ethernet”. Where do I type that?

  13. It worked! Thanks! If it wasn’t for good people like you I wouldn’t know what to do. Sends love your way

  14. This worked perfectly. But you should make clear that netsh needs to be run as Administrator (Win+X, then select Command Prompt (Admin))

  15. Mine is “Ethernet
    Network 2
    Realtek PCEi GBE Family controller” and the command doesn’t work. I am not getting my default hot mail loaded.

  16. netsh interface ipv4 set subinterface “Ethernet Network 2 Realtek PCEi GBE Family controller” mtu=1472 store=persistent

    If the command doesn’t work, please send me a screen shot.

  17. could not load a screen shot as it exceeds 2 MB. I have copied the command and pasted it here.
    Been using “netsh winsock reset” command as an administrator and prompted to restart the system and after that the hot mail loads for a while and facing the same problem again. .

  18. Had this issue on 250 Server 2012/2016 systems.

    2012 and up – Issue: Cannot access NuGet repositories. Cannot access Bing.Com. Cannot access MSN.Com. Certain websites do not load properly such as TMobile W3Schools

    Cause – The TCP ECNCapability protocol is causing Windstream to drop the packets. Windstream will neither fix nor acknowledge the issue.

    Fix: From an elevated command prompt, type the following command and hit enter. Bing.Com should immediately begin working.

    netsh int tcp set global ecncapability=disabled

  19. Neither of the posted Solution works for me. I don’t have an Antivirus running, and evertime i try the second method, it works for a couple of minutes after the restart, and then without any specific reason it keeps going back to the err_connection_reset.

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SOLVED: ERR_CONNECTION_RESET

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