localhost refused to connect Error in visual studio

Question

I have copied my solution file from another system and tried to run it on my machine  For this  I have gone to the project folder and deleted the previous solution file and copied the new one   Now  it started giving me error  connection refused etc  So  I got one solution from here  How to solve ERR CONNECTION REFUSED when trying to connect to localhost running IISExpress - Error 502  Cannot debug from Visual Studio    According to it  I changed the port number from 1049 to 1052  It loaded and one of the pages gets loaded  But when I entered the desired login credentials then it redirected to the older port again  like this   http   localhost 1049 Home SearchFlight   and the error is    This site can   t be reached   localhost refused to connect   Search Google for localhost 1049 Home Search Flight  ERR CONNECTION REFUSED   Now  I don t know what to do from here  I have changed the port number to 1052 but still its pointing to 1049  What should i do now

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I was having this issue and solved it by closing all open instances of Visual Studio

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I did the below in sequence and it worked for me    delete  vs folder delete obj folder close VS Studio Restart the machine

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This solution worked for me    Go to your project folder and open  vs folder  keep your check hidden item-box checked as this folder may be hidden sometimes  in  vs folder - open config see that applicationhost config file there  Delete that thing  Do not worry it will regenerate automatically once you recompile the project

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For this to work for me  all I had to do was recreate the virtual directory   I had re-installed Windows and then pulled the project back out of Git   To do this  right-click on the solution project and choose Properties  then go to the Web tab and click the Create Virtual Directory beside the Project Url   I hope this helps someone else too   Bud

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I recently ran into this exact problem and tried most of the suggestions but it turns out my problem was something different   Our application has a section that redirects you to HTTPS if you are on HTTP  yes  I know there are better ways but this is legacy   In addition  there is special handling of localhost when you are in dev mode which redirected you back to HTTP  though I don t know why   I have a new requirement that requires testing in HTTPS   On a normal web page  changing http    to https    and calling Redirect would work fine but in IISExpress you are using custom ports  So for example  if you are on https   localhost 44300 you can t just switch to http   localhost 44300 b c that port only serves https  not http   So  if you are having this problem and you ve cleared the config files and it didn t help  check your code for redirects  you might have something using a hardcoded or partially hardcoded url or a url from a config file that you haven t updated to https   Update  I also suggest clearing all  suo and  user files and someone else suggested clearing the obj  folder  I suggest doing this with VS closed and then restarting  I had a lot of trouble with values for ports being cached when i tried to setup https    and change ports  I also suggest trying this suggestion to check that the SSL port is within the correct range  though I don t know if that is still a requirement https   stackoverflow com a 24957146

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I had same issue    I tried everything above mentioned but nothing helped     then I just turned off my windows firewall and it worked for me  So just turn off your Firewall and run Visual Studio as Administrator

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I have had the same problem while on a computer without any admin rights    Getting rid of the  vs folder  applicationhost config file  in the project folder was not enough   What worked for me   I   deleted bin folder  as I reused an existing project  deleted Obj folder deleted  vs folder changed the port of the project  I used 3000  as  vinayakhegde mentionned it above and I also created a virtual directory   -    Localhost is accessing the solution so far    Hope it helps

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In my case  Visual Studio 2017   Tools  gt  Options  In Debugging menu in the side list find Edit and Continue  Uncheck the Enable Edit and Continue check box  This resolves my problem

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I ran my Visual Studio as  Run as administrator  and this solved my problem

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For me the issue was the configuration was set to a custom AsLive instead of Debug     Setting that back sorted it for me

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My problem turned out to be a property which called itself     Once I fixed this  the misleading connection error message disappeared

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Sometimes https and http ports can be same because if two tags are given same ports  IISExpressSSLPort and DevelopmentServerPort Make sure these two ports have different ports then in IISUrl use your default port either HTTP or HTTPS  https   localhost 44365    For HTTPS Use IISExpressSSLPort For HTTP Use DevelopmentServerPort   Then you may delete hidden  vs folder in solution folder

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I had to add https bindings in my local IIS

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I ran into a similar problem when I started working this morning  using Visual Studio Community 2019  Debug configuration  The IIS Express  Google Chrome  site was unreachable  When I terminated program execution via the red stop button in Visual Studio  I was rewarded with a windows error message stating  process with an id of 4    is not running    The computer had been left on overnight    I looked through the answers here and the solutions looked complicated  I tried closing and reopening the solution  restarting Visual Studio and  finally  restarting the computer    Restarting the computer resolved my issue  I did not delete any files or change any other settings

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None of these solutions worked for me  I m not 100   but I think my issue might have been with running the same project on the same port from multiple branches  That used to be an issue for me on Local IIS --- I m not sure if that s also an issue on IIS Express  What worked for me was following this solution  https   stackoverflow com a 27033934 2133723 Which says to go to  File - gt  Open - gt  Web Site    and remove the relevant projects  After this  I was able to run the project without changing the port  Prior to doing this  I had followed the other solutions posted on this question  which didn t help me   such as deleting the  vs folder  so I m not sure if that would be a necessary step prior to removing the website from File - gt  Open - gt  Web Site

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Try deleting cookies for your localhost

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I solved a similar problem by listing bound IP addresses in a cmd window running as admin   netsh http show iplisten   Then  one by one  blowing them all away   netsh http delete iplisten ipaddress 127 0 0 200 netsh http delete iplisten ipaddress 127 0 0 2

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Same problem here but I think mine was due to installing the latest version of Visual Studio and having both 2015 and 2019 versions running the solution  I deleted the whole  vs folder and restarted Visual Studio and it worked   I think the issue is that there are multiple configurations for each version of Visual Studio in the  vs folder and it seems to screw it up

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I had a similar issue  Try this and it should work   Go to your project folder and open the  vs folder  keep your check hidden item-box checked as this folder may be hidden sometimes  In the  vs folder open the config folder See that applicationhost config file there  Delete that thing   Do not worry it will regenerate automatically once you recompile the project

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Project properties  Web   Create Virtual Directory worked for me

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Open cmd as administrator and run this command   netsh http delete iplisten ipaddress xxx xxx x xxx   ipaddress is your private ip  This worked for me

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rebooting the machine was the only thing that worked for me

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I had the same problem  Deleting  vs folder  including all contents  folder might be hidden  worked for me

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If found it was because I had been messing about with netsh http add commands to get IIS Express visible remotely   The symptoms were    the site would fail to connect in a browser the site would fail to start  right click IIS Express in the Taskbar and it was missing  if I ran Visual Studio as admin it would start in IIS Express and be visible in the browser   The solution was to list all bound sites   netsh http show urlacl   then delete the one I had recently added   netsh http delete urlacl url http     54321    In addition I had removed localhost from the hidden solution folder file  vs config application config for the site    lt bindings gt       lt binding protocol  http  bindingInformation    54321     gt   lt  bindings gt    so had to put that back    lt bindings gt       lt binding protocol  http  bindingInformation    54321 localhost    gt   lt  bindings gt

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Just Delete the  obj Object folder in project folder then Run the application then It will work fine  Steps    Right Click on the  project folder then select  Open folder in file Explorer   Then Find the Obj folder and Delete that  Run the Application

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Go to control panel   Programs and feature   IISExpress   Repair

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This happened to me in VS2017 v 15 6 7 using  net core 2 0   When the project first launched it created an SSL Cert for localhost and started fine  When I disabled SSL I kept getting this issue    Apparently when you disable SSL the port numbers are changed and not all of the port numbers get changed to the new port  Make sure port numbers on Debug are all the same number

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Unfortunately  none of these answers worked for me   This answer finally did for Chrome only   Unfortunately  you have to do it each time    Open this in your browser   chrome   net-internals  hsts Go to Delete domain security policies Enter  localhost  Restart browser   Google Chrome redirecting localhost to https

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I ve tried everything but nothing worked  but this did  If you can debug on local IIS instead of Express  change the configurations as shown in the image below  Do not forget to click on  Create virtual directory

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Right Click on Project    Properties     Select Web Tab    Under server Select  Use Visual development server  so indirectly it will uncheck  Local IIS Server    Hope so it may resolve this issue

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Changing port number has resolved the issue

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Usually on local machine we are getting errors like This site can t be reached localhost refused to connect because we have self signed certificate configuration broken for local IIS Express   Sometimes it happens when you change URLs in launchSettings json or never configured self signed certificates on this machine at all   To fix self-signed certificate on the local machine you need to      Delete  vs folder  requires to close Visual Studio 2017  Run these commands in cmd As Administrator   cd  C  Program Files  x86  IIS Express   IisExpressAdminCmd exe setupsslUrl -url https   localhost 12345  -UseSelfSigned Make sure you run VS2017 As Administrator and check if the issue addressed   Note  https   localhost 12345  is what is in your launchSettings json for HTTPS

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Like Donny V  this happened to me in VS2017 using  net core 2 0   When the project first launched  VS displayed a dialog  offering to create an SSL Cert for localhost - but I didn t want to use SSL  so I stopped running and went into Project Properties and disabled SSL  a checkbox that can be cleared    After doing that I kept getting the issue described   After trying many things what actually resolved the issue for me was editing the launchSettings json file located under  ProjectName  Properties - it s accessible from Solution Explorer   When the editing was complete  the contents looked like this  where 12345 is a Port Number  and where MyNETCoreApp is the name of the project           iisSettings              windowsAuthentication   false           anonymousAuthentication   true           iisExpress                  applicationUrl    http   localhost 12345                         profiles              IIS Express                  commandName    IISExpress                launchBrowser   true               launchUrl    http   localhost 12345                 environmentVariables                      ASPNETCORE ENVIRONMENT    Development                                    MyNETCoreApp                  commandName    Project                launchBrowser   true               environmentVariables                      ASPNETCORE ENVIRONMENT    Development                              applicationUrl    http   localhost 12345                       The edits I made were    Updated the Port Numbers so they were all the same number Removed a key value of ssl 0 in one spot Updated all https    instances to be http

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Change the port number and remove script debugging  if enabled  to resolve in localhost

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