Error Not Capable 775 (0x307): How to Fix it

ERROR_NOT_CAPABLE is an obscure error, and it usually appears if you’re a developer or a server administrator. Although rare, this error can cause problems, so let’s see how we can fix it.

How can I fix ERROR_NOT_CAPABLE?

1. Enable SSO through PowerShell

1. Open PowerShell with administrative privileges.
2. Navigate to %programfiles%\ Microsoft Azure Active Directory Connect
3. Next, import AzureADSSO.psd1 with the following command Import-Module .\AzureADSSO.psd1
    
4. After that, run New-AzureADSSOAuthenticationContext
   
5. Enter the cloud admin credentials for the tenant.
6. Next, for each forest, you want to enable SSO by running Enable-AzureADSSOForest
   
7. You’ll be asked to enter domain admin credentials.
8. Next, run the following and enter tenant credentials: New-AzureADSSOAuthenticationContext
9. Lastly, pass ‘true’ after running Enable-AzureADSSO
   

Some users reported that they turned off their firewall and allowed port 9090 during this process.

2. Other solutions to try

1. Ensure that the hardware supports the requested features. Optionally, update firmware or driver.
2. Double-check that there are no file system limitations.
3. If working with APIs, check the documentation for support and limitations. If needed, update the software or library or use a different method.
4. When working with virtualization, ensure that there are no container restrictions. Also, double-check the documentation for compatibility issues.

ERROR_NOT_CAPABLE is an obscure error, and it usually comes with the following message: 775 (0x307) The implementation is not capable of performing the request.

This isn’t the only issue you can encounter, and we wrote about ERROR_PWD_HISTORY_CONFLICT and ERROR_LOGON_SERVER_CONFLICT in the past, so don’t miss those guides for more information.