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Uploading files to a vSphere service might fail (2147256)

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Initiating a file upload to either a content library or datastore, or attempting to deploy an OVF or OVA template, might result in the operation failing with an error:

The operation failed for an undetermined reason. Typically this problem occurs due to certificates that the browser does not trust. If you are using self-signed or custom certificates, open the URL below in a new browser tab and accept the certificate, then retry the operation.


If this does not resolve the problem, other possible solutions are shown in this KB article:


To initiate a file upload or deploy an OVF or OVA template, accept self-signed certificates or replace expired certificates.

Identify the URL in the error message and verify that the current browser trusts the SSL certificate that it uses by navigating to the URL.

Resolve any problems with the certificate before uploading the file.

For self-signed certificates, accept the certificate and retry uploading the file. Add the certificate of the certificate authority to the list of trusted certificate authorities for a permanent solution.

For expired or otherwise untrusted certificates,  replace the certificate with a valid one

This problem might also suggest other types of connectivity problems between the browser and the URL, displayed in the error message, such as unreachable server or dropped connections.

Alternately, Use Download trusted root CA certificates option from the getting started page by accessing https://FQDN_of_vCenter

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  • 291 Ratings