Error trying to connect to Veeam Vault

[hm-hmason]

We recently migrated our VBR to a new Windows server. We are using Veeam Vault in AWS, but not able to connect to our Vault from the new server after restoring the configuration. Below is the error message we are getting. I know I've seen this before but don't recall what the solution was. Any assistance is appreciated.

Failed to connect to Amazon S3 configuration: Amazon S3 connection has returned an untrusted certificate. Remote certificate chain errors:
PartialChain (A certificate chain could not be built to a trusted root authority.)
RevocationStatusUnknown (The revocation function was unable to check revocation for the certificate.)

[david.domask]

Hi Heath,

Please open a Support case for technical issues as noted in the forum rule's and when creating topics. We cannot meaningfully troubleshoot over the forums.

You can try checking the items in this KB, but as the issue is fairly generic, it's best to start with a Support Case. Please share your case number once created, thanks!