At 2025-10-21 06:59:32.336 +900, I tried to log in into Katalon Studio v10.3.2 Free from browser, and got an error
The message said “The API response is null or does not contain the expected content.”
I clicked the link to Troubleshoot which does not cover this error message. This suggests that the server of Katalon is in trouble.
Dear Mr Kazu,
We’re experiencing an authentication outage caused by issues at our hosting provider. Sign-in requests to Katalon products may time out or fail, resulting in degraded service.
Impact
What we’re doing
We’re actively working with the provider and exploring mitigation paths to restore authentication as quickly as possible.
Please refer to our updates for more information: https://status.katalon.com/incidents/slmsxgd0bt5w
Bella
Thank you sharing the outage details @nghi.phan
its AWS US East 1 that has the DNS issue and it has affected almost everybody.
Its not fully fixed as of now
I’d also try opening the login page in a private/incognito window or a different browser. If that works, it’s often just a cached session or an extension interfering with the login process. Clearing the site cookies can save a lot of time too.
is it happening still?
This error doesn’t necessarily indicate that Katalon’s servers are having issues. It can also occur because of a temporary authentication problem, network restrictions, or VPN/proxy settings. I recommend checking whether you can sign in to your Katalon account through a web browser, then restarting Katalon Studio and trying again. If the issue persists, try using a different network or updating to the latest version of Katalon Studio. If none of these steps resolve the problem, sharing the Katalon Studio logs with the community or Katalon Support may help identify the root cause.
