Hi, we''re currently running 3 XCP 1.6 servers and noticed that Windows 2012 seem to cause complete server freezes. Not only the 2012-VM freezes but the whole hypervisor. The only way to recover is a hardware reset of the server. We cannot really reproduce the crashes instantly but it looks like the crashes occour more often while the backup software (http://shadowprotect.com) is running a backup. Is this a known issue? Are the any workarounds? What can I do to narrow down the cause of the crashes? Thanks in advance! Regards, Jörn Bredereck -- ****************************** B&W-NetworX GmbH & Co. KG Landstr. 67a 76547 Sinzheim Fon: 07221 996388-8 Fax: 07221 996388-1 http://www.bw-networx.net info@bw-networx.net ----------------------------- AG Mannheim HRA 521208 Pers. haf. Ges.: B&W-NetworX Verwaltungs-GmbH Sitz: 76532 Baden-Baden AG Mannheim HRB Nr.: 202122 Geschäftsführer: Jörn Bredereck Dipl. Ing. Holger Wunsch ******************************