Hello, we use KVM virtualization (Proxmox VE 3) and we have two VMs. 101 - webserver (apache, mod_php) 102 - database server (mariadb) 101 has 3 network interfaces. 2 are bridged to "net"(vmbr0), one to "lan"(vmbr1) 102 has 1 network interface bridged to "lan" Sometimes for less that 1 minute, 101 lost connection to 102. PHP cant connect to mysql. I try to ping servers. when I ping from 101 to 102 its 100% packet loss. But when I ping from 102 to 101 its 0% packet loss. After minute(s) its working again normaly. Also restarting apache help, but not everytime. I dont know how to solve this. 101 Code: [email protected] 102 Code: [email protected] host node Code: [email protected] EDIT: Hi, I solved it yet. I have another VM on same bridge with the same IP as has webserver So my big fail.