Hi Community,
hope you can help me with this confusing Issue.
What we have:
1x UTM320 FullGuard
2x ESXi-Hosts with ~20 VM's in several Networks (Management, Production, DMZ, WAN - isolated via VLAN or physical)
Example:
Management-Network (172.10.0.0/24)
VM1 (Win2003) - 2 Network-Shares
VM2 (Win2003R2) - 10 Printers
VM3 (Win2012) - 4 Network-Shares
Production-Network (172.10.5.0/24)
VM4 (Win2008R2) - connected to VM1 + VM3
VM5 (Win2008R2) - connected to VM1 + VM2
Networks are masqueraded in each direction.
Firewall-Rules between the Networks: allow-any
Problem:
On VM5 the mapped Printers are flickering between "online", "offline" and "inaccessible", also the mapped Network-Shares are accessible in one moment, in the next moment I get a connection-error.
On VM4 nearly same situation, but VM3-Network-Shares are persistent with no issues.
If I connect the other way, from VM1 or VM2 to a Network-Share on VM4 or VM5, I have no issues at all...
Now you would like say: It's a problem of the Win2003-VM's....
But: When I move one of the Win2003-VM's to Production-Network for testing, the problem is gone. But this is no option nor solution!
Nothing on the Log-Files, that I could connect to this issue...
Thanks for reading and any hint or solution to this.
Have a nice weekend!
Regards
Thorsten
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