How to solve “Microsoft Visual Studio (VS)” error “Unable to connect to the configured development Web server”

SOLUTION This means that you are missing the right for using it. Create it with Netsh Commands for Hypertext Transfer Protocol > add urlacl. Open “Command Line Interface (CLI)” called “Command shell” with Win+R write “cmd” Open CLI windows like administrator with mouse context menu on opened windows or icon “Run as administrator” Insert command … Read more

Visual Studio website is redirecting http to https when debugging

I believe this is caused by HSTS – see http://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security If you have (developed) any other localhost sites which send a HSTS header… eg. Strict-Transport-Security: max-age=31536000; includeSubDomains; preload …then depending on the value of max-age, future requests to localhost will be required to be served over HTTPS. To get around this, I did the following. … Read more

Visual Studio 2017 gives ‘Adding the Certificate to The Trusted Root Certificates store failed with the following Errror’

Note: Adding the OP’s solution from the question as an answer. This is what worked for me. deleted all localhost certificates. ran repair IIS Express in Add/Remove Programs. Copy and pasted localhost certificate from Personal/Certificate to Trusted Root Certificates and it didn’t complain anymore. Repairing/reinstalling IIS Express does not appear to actually fix this issue … Read more