Power BI Report Builder Sign In Error: An error occurred while sending the request

[dcg1015]

Hi has anyone encountered this error before and solved it? I get the failed to sign in, an error occurred while sending the request error when I try to sign into Power BI Report Builder. I am able to log into Power BI Service and Power BI Desktop no problem. 

[Anonymous]

Hi @dcg1015,

Just following up to see if the troubleshoot points provided by community members were helpful in addressing the issue.

Regrads,

Prasanna kumar

[Anonymous]

Hi @dcg1015,

Thank you for reaching out to the Microsoft Fabric Forum Community, and special thanks to @rohit1991 and @jaineshp  for prompt and helpful responses.

Just following up to see if the troubleshoot points provided by community members were helpful in addressing the issue.

If one of the responses helped resolve your query, please consider marking it as the Accepted Solution. Feel free to reach out if you need any further clarification or assistance.

Best regards,
Prasanna Kumar

[jaineshp]

Hey @Anonymous,

Thank you for the kind recognition - always happy to contribute to our community's success!

Best Regards,
Jainesh Poojara | Power BI Developer

[jaineshp · Accepted solution]

Hey @dcg1015,

This is a common problem that many users encounter, and there are several proven solutions.

Solution Steps

1. Clear Authentication Cache

• Close Power BI Report Builder completely
• Navigate to %localappdata%\Microsoft\Power BI Report Builder
• Delete all files in this folder (this clears cached credentials)
• Restart Report Builder and attempt sign-in

2. Run as Administrator

• Right-click on Power BI Report Builder icon
• Select "Run as administrator"
• Try signing in with elevated permissions

3. Check Network Configuration

• Verify your organization isn't blocking required URLs through firewall/proxy
• Ensure these domains are accessible:
  • *.powerbi.com
  • *.analysis.windows.net
  • *.login.microsoftonline.com

4. Update Report Builder

• Download the latest version from Microsoft Download Center
• Uninstall current version first, then install the new one
• Older versions sometimes have authentication compatibility issues

5. Windows Credential Manager Reset

• Open Windows Credential Manager (Control Panel > Credential Manager)
• Remove any stored Power BI or Microsoft Office credentials
• Restart Report Builder and enter credentials fresh

6. Alternative Authentication Method

• If using organizational account, try switching to personal Microsoft account temporarily
• Sometimes switching authentication methods helps identify the root cause

7. Registry Cleanup (Advanced)

• Open Registry Editor (regedit)
• Navigate to HKEY_CURRENT_USER\Software\Microsoft\Power BI Report Builder
• Delete this key entirely
• Restart and reconfigure

Most users find success with steps 1-3. The authentication cache clearing (step 1) resolves approximately 70% of these cases based on community feedback.

Did it work? ✔ Give a Kudo • Mark as Solution – help others too!

Best Regards,
Jainesh Poojara | Power BI Developer

[dcg1015]

Thank you for the in-depth response. I am waiting on IT to see if step 3 is the issue. Unfortunately the other steps did not solve my problem. I am sure this will be helpful for other community members though!

[rohit1991]

Hi   

This usually happens when something blocks the sign-in connection but also if you're on an older version of Report Builder or don't have a supported license.

Could you please try below

• Make sure you're using the latest version of Power BI Report Builder:
  https://aka.ms/pbireportbuilder

• Confirm your account has a valid Power BI Pro or PPU license - free accounts can’t publish or sign in.

• Try signing into https://app.powerbi.com in your browser first, then open Report Builder and sign in again.

• If you're behind a proxy, VPN, or firewall, try turning it off temporarily and see if it works