Check routes on the guests that are having trouble. You should verify if the public traffic from these guests is reaching the router.
-----Original Message----- From: Motty Cruz [mailto:motty.c...@gmail.com] Sent: Tuesday, 9 December 2014 11:46 AM To: users@cloudstack.apache.org Subject: ACS 4.4.1 XenServer 6.2 - VMs lost connection in "Isolated" network Hi All, I have total of about 5 VMs on "Isolated" network, but they lost connection to outside world. I am able to ping the VR but can't ping to outside world. If I log in to VR, am able to ping anywhere outside or inside network. out of the 5 VMs, 3 machines never loose connection, the two VMs that do loose connection are windows machines. To get the connection again, I have to restart VR. Any ideas? I want to mentioned that, I have three other "Isolated" networks in the same zone. I do not have problems with other "Isolated" networks. I do need help! Thanks, Motty