Packetloss on one Hostnode

Hello,

we used Opennebula in a Singlenode/allinone - Setup and everything worked like a charm. Now we added another hypervisor and got a little problem. The connectivity to the vms on the new nodes is very laggy. There is a big issue with packetloss and I have no idea why. The vm-network ist configured with linuxbridge.
Any idea where to look for the fault?

Kind Regards

    root@opennebula:/etc/one/vmm_exec# onevnet show 1
VIRTUAL NETWORK 1 INFORMATION
ID                       : 1
NAME                     : Bridge
USER                     : user
GROUP                    : oneadmin
LOCK                     : None
CLUSTERS                 : 0
BRIDGE                   : brone
VN_MAD                   : bridge
PHYSICAL DEVICE          : ens6f1
AUTOMATIC VLAN ID        : NO
AUTOMATIC OUTER VLAN ID  : NO
USED LEASES              : 8

PERMISSIONS
OWNER                    : um-
GROUP                    : ---
OTHER                    : ---

VIRTUAL NETWORK TEMPLATE
BRIDGE="brone"
BRIDGE_CONF="stp=on"
BRIDGE_TYPE="linux"
DNS="192.168.33.5 192.168.33.9"
GATEWAY="192.168.99.254"
NETWORK_MASK="255.255.0.0"
OUTER_VLAN_ID=""
PHYDEV="ens6f1"
SEARCH_DOMAIN="company.internal"
SECURITY_GROUPS="0"
VLAN_ID=""
VN_MAD="bridge"

ADDRESS RANGE POOL
AR 0
SIZE           : 24
LEASES         : 8

RANGE                                   FIRST                               LAST
MAC                         02:00:c0:a8:21:01                  02:00:c0:a8:21:18
IP                               192.168.33.1                      192.168.33.24


LEASES
AR  OWNER                         MAC              IP                        IP6
0   V:75            02:00:c0:a8:21:01    192.168.33.1                          -
0   V:48            02:00:c0:a8:21:02    192.168.33.2                          -
0   V:62            02:00:c0:a8:21:03    192.168.33.3                          -
0   V:64            02:00:c0:a8:21:04    192.168.33.4                          -
0   V:65            02:00:c0:a8:21:05    192.168.33.5                          -
0   V:67            02:00:c0:a8:21:06    192.168.33.6                          -
0   V:72            02:00:c0:a8:21:08    192.168.33.8                          -
0   V:73            02:00:c0:a8:21:09    192.168.33.9                          -


root@opennebula1:/var/lib# brctl show
bridge name	bridge id		STP enabled	interfaces
brone		8000.32621c203cfa	yes		ens6f1
							one-64-0

root@opennebula:/etc/one/vmm_exec# brctl show
bridge name	bridge id		STP enabled	interfaces
brone		8000.3ae5fb70dec0	yes		ens6f1
							one-48-0
							one-62-0
							one-65-0
							one-67-0
							one-73-0
							one-75-0
brtwo		8000.38eaa792805c	yes		eno1
							one-48-1

The problem was the Networkcard. Changed the hardware. Now everything is fine.