> For the complete documentation index, see [llms.txt](https://documentation.2pintsoftware.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://documentation.2pintsoftware.com/2pxe-server/troubleshooting/ipxe-endpoint-certificate-errors.md).

# iPXE Endpoint Certificate Errors

## Request failed: ... validation procedure

Full Error: Request failed: The remote certificate is invalid according to the validation procedure.

When you see this, that means the certificate you have assigned via the thumbprint in the 2PXE config isn't trusted by the iPXE server.  Often this happens when using the 2PintSoftware self-signed certificate for 2PXE but forgetting to add the root cert into your trusted root certificate store.

Certificate generated by 2PXE for the 2PXE process, issued by 2PintSoftware.com:

<figure><img src="/files/iGlXLJ9t5z9nS0T6mNPG" alt=""><figcaption></figcaption></figure>

Ensure the 2PintSoftware.com root cert is in the Trusted Root Certification Certificate Store:

<figure><img src="/files/9G47DSHma4v1m2nuwhoh" alt=""><figcaption></figcaption></figure>

If you still need to import that certificate, it can be found here: \
"C:\Program Files\2Pint Software\2PXE\x64\ca.crt"


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