Nuget connection attempt failed "Unable to load the service index for source"


While trying to connect to Nuget, I'm getting the error below, and then I am unable to connect:

[] Unable to load the service index for source An error occurred while sending the request. Unable to connect to the remote server A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond

I am able to access on my browser.

This question is not a duplicate. The other answers don't solve my problem.

This question is tagged with .net visual-studio nuget

~ Asked on 2016-12-16 13:24:33

The Best Answer is


You need to add proxy settings into Nuget.Config file. Refer to this link for details: Nuget Config Section & Nuget Proxy Settings.

~ Answered on 2016-12-21 08:43:18


Open Registry Editor by pressing Win + R and type regedit Enter

Navigate to:

\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.3\Client

Change the value of DisabledByDefault key 0 to 1

Then restart the Visual Studio.

Read more about TLS
Read more about this issue w.r.t. NuGet

~ Answered on 2019-11-14 07:43:46

Most Viewed Questions: