CloudStorageExplorer

Azure Storage Explorer Troubleshooting: 8 Common Errors Fixed

Updated Feb 5, 20262 min read

Here are the 8 most common Azure Storage Explorer errors and how to fix them.

1. "Unable to Connect to Storage Account"

Cause: Expired credentials, firewall rules, or incorrect connection string.

Fix:

  1. Check your storage account firewall settings in the Azure Portal
  2. Ensure your IP is whitelisted if firewall is enabled
  3. Re-enter your connection string or SAS token
  4. Try disconnecting and reconnecting

2. "Authentication Failed"

Cause: Expired Azure AD token or incorrect credentials.

Fix:

  1. Click your account icon > Sign out
  2. Sign back in with your Azure credentials
  3. If using a SAS token, generate a new one with current dates

3. Slow Upload/Download Speeds

Cause: Network configuration, file size, or concurrent operation limits.

Fix:

  1. Check your internet connection speed
  2. Reduce concurrent transfer count (Edit > Settings > Transfers)
  3. For many small files, consider zipping them first
  4. Check if your VPN is routing traffic through a distant server

4. "The Specified Resource Does Not Exist"

Cause: Container or blob was deleted, or you're connected to the wrong storage account.

Fix:

  1. Verify you're connected to the correct storage account
  2. Refresh the container list (right-click > Refresh)
  3. Check if the resource was deleted in the Azure Portal

5. "Forbidden" (403 Error)

Cause: Insufficient permissions on your SAS token or RBAC role.

Fix:

  1. Check your SAS token permissions (read, write, delete, list)
  2. Verify the SAS token hasn't expired
  3. If using RBAC, ensure you have Storage Blob Data Contributor role

6. Storage Explorer Crashes on Launch

Cause: Corrupted cache or incompatible .NET version.

Fix:

  1. Delete the Storage Explorer cache folder
  2. Reinstall the latest version (installation guide)
  3. Check for OS updates

7. "SSL Certificate Problem"

Cause: Corporate proxy or self-signed certificates.

Fix:

  1. Edit > Settings > Application > SSL Certificates
  2. Import your corporate root certificate
  3. Or toggle "Skip SSL validation" (not recommended for production)

8. Cannot See Storage Accounts

Cause: Subscription filter or permission issues.

Fix:

  1. Click the filter icon in the Account Management panel
  2. Ensure the correct subscriptions are checked
  3. Verify your Azure AD account has Reader role on the subscription

Still Having Issues?

Check the official Microsoft documentation or back to our main Azure guide.