I tried above “Checking Ignore SSL”. Also tried generating new API Key and use that in TFS. I am also getting error while pushing.
Requesting signature for delta compression from the server for upload of a package with id ‘AttributionService’ and version ‘0.1.0-jmoscrop-144963-0001+146266’
2020-09-17T17:08:51.5463158Z Calculating delta
2020-09-17T17:08:52.4056848Z The delta file (7,965,636 bytes) is 42.76% the size of the original file (18,628,949 bytes), uploading…
2020-09-17T17:08:52.5150595Z Something went wrong while performing a delta transfer:
2020-09-17T17:08:52.5150595Z Falling back to pushing the complete package to the server
2020-09-17T17:08:52.7181858Z Error from Octopus Server (HTTP 500 InternalServerError)
And Yes the certificate is internal CA that is trusted on all desktop and servers.