Need to Access Visual Studio

guys I am new to this I barely understand what you are saying. I have to go to work I will be back.

The 127.0.0.1 address and the issues described point to a local configuration/network problem on the machine, not to a general incompatibility between Microsoft, GitHub, and Visual Studio Code.

Use the following steps to get unblocked and verify where the problem really is.

1. Verify basic network and proxy behavior
2. Open Command Prompt and run:

      curl "https://github.com" -v
   

   • If this fails with errors like connection refused, could not resolve address, or error on send, there is a machine or network configuration issue (proxy, firewall, DNS, or IPv6) that must be fixed before Visual Studio Code or Visual Studio can work reliably.
   • If behind a proxy, set http_proxy and https_proxy environment variables before running curl, as described in the guidance for debugging proxy errors.
3. Check for proxy/firewall issues

If network-dependent tools fail similarly to Visual Studio/VS Code:

1. If using a proxy server:
   • Confirm whether it is an explicit or transparent proxy.
   • Confirm whether it requires authentication (Basic, NTLM, Kerberos).
   • If it requires NTLM or Kerberos, set the environment variable VS_USE_DEFAULTPROXY=true for Visual Studio, and COPILOT_USE_DEFAULTPROXY=true for Copilot features.
   • If the proxy does not require authentication, explicitly set HTTPS_PROXY and HTTP_PROXY environment variables to the proxy address.
2. If a corporate or third‑party firewall is in use, ask the network administrator to verify that Visual Studio/VS Code traffic is not blocked and that required domains and TLS versions are allowed.
3. Address 127.0.0.1 / connection refused behavior

127.0.0.1 is the local machine (loopback). A message like “No connection could be made because the target machine actively refused it” with 127.0.0.1 usually means:

1. A local proxy server is configured but not running.
2. VPN software or security software has inserted a local proxy that is misconfigured.

Actions:

1. Temporarily disconnect from any VPNs and retry network operations in Visual Studio/VS Code.
2. Review proxy settings in Windows and in any security software; remove or disable any local proxy configuration that points to 127.0.0.1 unless the corresponding service is actually running.
3. If IPv6 is enabled but the network does not support it, disable IPv6 on the machine and test again.
4. Check TLS/SSL configuration

If errors mention SSL/TLS (for example, The underlying connection was closed or The SSL connection could not be established):

1. Ensure that TLS 1.2 is allowed and not blocked by group policy or security software.
2. If TLS 1.3 is enabled but the network devices do not support it, disable TLS 1.3 on the machine using the documented registry keys:
   • Under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.3\Client, set:
     • DisabledByDefault = 1
     • Enabled = 0
3. If certificate errors mention a partial chain, work with the administrator to install missing intermediate certificates.
4. Fix Visual Studio / VS Code sign‑in and account remnants

Deleting an online Microsoft account does not automatically remove cached credentials on the machine.

1. Open Windows Credential Manager → Windows Credentials.
2. Remove entries related to Visual Studio, VS Code, Git, or proxies, such as:
   • VSCredentials_<proxyAddress>
   • Entries with git: prefix (for GitHub)
3. Restart Visual Studio/VS Code and sign in again with the account intended for development.
4. Visual Studio cannot connect / “underlying connection was closed”

If Visual Studio itself shows “The underlying connection was closed: An unexpected error occurred on send” or similar when trying to sign in, restore packages, or use extensions:

1. Ensure that required Visual Studio and Azure URLs are allowed through the firewall by adding them to an allowlist as documented for using Visual Studio behind a firewall or proxy.
2. If reporting a problem from Visual Studio fails with “Disconnected from Visual Studio,” edit the feedback.exe.config file (in the Visual Studio Installer folder) and add:

      <system.net>
          <defaultProxy useDefaultCredentials="true" />
      </system.net>
   

   before the closing </configuration> tag, then retry.
3. When to escalate to support

If, after verifying basic connectivity with curl, checking proxy/firewall configuration, cleaning credentials, and adjusting TLS/SSL settings, Visual Studio or VS Code still cannot connect or see local folders, collect diagnostics and contact support:

1. Gather Visual Studio logs from %temp%/Vslogs.
2. Capture a network trace (for example, with Fiddler) showing failed requests.
3. Note proxy configuration details (type, authentication, SSL inspection, IPv6 routing).
4. Use the Visual Studio Report a Problem tool or the installation chat/support options to open a support case and attach the collected information.

These steps will isolate whether the issue is local networking/proxy, TLS/SSL, or account/credential configuration, and provide the data needed for Microsoft support to help restore full access to Visual Studio and Visual Studio Code.

References:

• Troubleshoot network-related errors when you install, update, or use Visual Studio
• Troubleshoot proxy and firewall issues in Visual Studio
• Install and use Visual Studio and Azure Services behind a firewall or proxy server
• Sign in to Visual Studio with accounts that require multifactor authentication (MFA)
• Common issues and workarounds in Visual Studio setup