Log messages on the hardware node contain records like this one:
Sep 28 07:05:23 myserver kernel: [14552390.545331] Dropped packet, source wrong veid=111 src-IP=22.214.171.124 dst-IP=126.96.36.199
- The IP address "188.8.131.52" is not assigned to the container #111.
This is the default protection in the Virtuozzo kernel, it prevents spoofing of IP addresses from other containers.
To resolve this situation, it is necessary to verify that the container does not have any service and application that uses the wrong IP address (not assigned to this container).