Refresh Error - server closed

Hi Anonymous ,

I suggest you to refresh your report in Power BI Desktop to make sure the data source is accessable.

Then what kind of data source are you connecting to to create the report? And what kind of connection mode are you trying to connecting to the data source?

There are two kinds of on-premises data gateway, personal mode on-premises data gateway and standard on-premises data gateway.

If you use direct query / live connection mode, you need to use standard on-premises data gateway.

Make sure you have configured your gateway correctly.

For reference:

Add or remove a gateway data source

You may refer to below offical blogs to learn more deatils.

For reference:

Troubleshooting refresh scenarios

Troubleshoot gateways - Power BI

Best Regards,
Rico Zhou

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.