topic Re: Fabric Copy Activity from S3 issue: Could not establish trust relationship for the SSL/TLS channel in Pipelines

Fabric Copy Activity from S3 issue: Could not establish trust relationship for the SSL/TLS channel

cvittori — Fri, 28 Jul 2023 19:14:20 GMT

Hello,

I'm trying to copy data from an S3 bucket into OneLake using Copy data activity in a data pipeline in Fabric. While configuring the source for the Copy Data activity, I'm using connection type Amazon S3, Connection is established successfully while clicking Test Connection but when trying to browse files from root, nothing gets listed (empty screen). When I enter the bucket name in the File path and choose "Browse from specified path" option, the following error is raised:

"The file operation is failed. A WebException with status TrustFailure was thrown. The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. The remote certificate is invalid according to the validation procedure. Activity ID: xxxxx "

Any help??

Thank you!

Re: Fabric Copy Activity from S3 issue: Could not establish trust relationship for the SSL/TLS channel

GraceGu — Mon, 31 Jul 2023 06:23:54 GMT

Can you check required permissions? If permissions are granted, but still hit errors, would you help open a support ticket?

Thank you!

Re: Fabric Copy Activity from S3 issue: Could not establish trust relationship for the SSL/TLS channel

venkat-subha — Wed, 20 Mar 2024 09:26:53 GMT

my bucket is public , but still have this issue

Re: Fabric Copy Activity from S3 issue: Could not establish trust relationship for the SSL/TLS channel

pmedheka — Wed, 09 Oct 2024 18:25:08 GMT

cvittori Did you got any resolution for this issue ? I am also getting same.

Re: Fabric Copy Activity from S3 issue: Could not establish trust relationship for the SSL/TLS channel

pmedheka — Wed, 09 Oct 2024 18:25:37 GMT

what was resolution to this issue ?

Re: Fabric Copy Activity from S3 issue: Could not establish trust relationship for the SSL/TLS channel

gpalsson — Fri, 21 Nov 2025 08:21:20 GMT

This is still a problem in november 2025

*sigh*

Re: Fabric Copy Activity from S3 issue: Could not establish trust relationship for the SSL/TLS channel

frank-panosai — Wed, 18 Mar 2026 12:22:58 GMT

Here is how you can fix it: As the connection URL use plain https://s3.amazonaws.com