Package: x2goserver Version: 4.0.1.20 The client machine's OS: Windows 10 The client machine's version of X2GoClient: 4.1.0.0-2017.03.11 Any relevant session settings in X2GoClient: XFCE or KDE session The server's OS: Centos (3.10.0-514.el7.x86_64) 7 The server's version of the x2goserver package: 4.0.1.20 After a few hours of running a certain tool (Cadence - unfortunately not open source), we see a sudden slowdown where the whole session reacts very very slowly and screen refreshes also very slowly. The load on the server is not significant and the server also has plenty of memory. Sometimes, if we leave it alone for a few minutes, it can recover, but not always. If we open another session in parallel, that new session is fine. --Kartik Movandi Corporation CONFIDENTIALITY NOTICE: This email may contain confidential and/or privileged information for the sole use of the intended recipient. Do not read this email if you are not the intended recipient. Any use, review or distribution is STRICTLY PROHIBITED. If you are not the intended recipient, or a person responsible for delivering it to the intended recipient, please destroy the original transmission and its attachments without reading or saving in any manner. Thank you.