Nat network issue,servers losing access via port forwarding for 4 guests in 2 different hosts

Discussions related to using VirtualBox on Windows hosts.
Post Reply
Jak0ps
Posts: 2
Joined: 19. Sep 2017, 16:03

Nat network issue,servers losing access via port forwarding for 4 guests in 2 different hosts

Post by Jak0ps »

Hello guys,

I have some strange issue ,I got 2 hosts and each got 2 CentOS VMs ,they both lose internet connection only when using NAT network, bridge mode is ok.
I can access everything for about 1-2 hours and then it seems like there is a connection lose as per a telnet check that I did, restart VBOX works again.

Both hosts are windows 10, one is build 15063.540 with Mcaffee AV , FW off and the other is 15063.608 Avast AV and FW off.
Ports forwarded are 22,8080 and 3000.

Again, everything is working fine for the initial 1-2 hours and then server is blocked, however, I still can access VMs from each other, internal network still works.

Please advise
Jak0ps
Posts: 2
Joined: 19. Sep 2017, 16:03

Re: Nat network issue,servers losing access via port forwarding for 4 guests in 2 different hosts

Post by Jak0ps »

I tested the same thing by adding Ubuntu and Fedora VMs in addition to the 2 CentOS, and the same thing happened.

When I'm trying to ping 8.8.8.8 from 1 of the servers I get this:
From 192.168.1.250 icmp_seq=1 Destination Host Unreachable
From 192.168.1.250 icmp_seq=2 Destination Host Unreachable
From 192.168.1.250 icmp_seq=3 Destination Host Unreachable
Post Reply