Gateway Problems since May 2025

Hi Stewwe 

Since May 20, 2025, you've been experiencing severe instability with your Power BI semantic model refresh performance, which relies on data served through an on-premises SQL Server via a data gateway. Normally, your refreshes take around 15 minutes, but you've observed erratic behavior where the same models occasionally take over an hour or more to complete without any clear cause—despite no significant changes on your end. Given that you're using a Premium Per User (PPU) license, typical resource contention from other tenants (often called "noisy neighbor" issues) should not be the root cause. What's notable is the timing: the last gateway update occurred on May 21, 2025, just a day after the issues began, and the error message you're receiving—“Execution Timeout Expired…”—is the same one you encountered during a known gateway issue confirmed by Microsoft support two years ago. This strongly suggests that the problem could again be related to a faulty gateway update. You're not alone in suspecting this, as others in the community have reported similar inconsistencies around gateway performance following certain updates. It would be helpful to check whether others in Microsoft support forums or the Power BI community have raised similar cases recently. In the meantime, monitoring gateway logs, reviewing SQL Server performance counters, and potentially rolling back to a previous gateway version (if possible) could help isolate or temporarily mitigate the issue until Microsoft confirms and addresses any bugs in the latest update.