Hi all, I have a question about Windows VMs and a networking issue I'm having.  

Here's the setup - 

* oVirt - 3.5.1.1-1 

* Hypervisors are CentOS 6.7 box with 2 NICs in bond0 'mode=4 miimon=100 lacp_rate=1'

* On bond0 I have a few networks using vlan tagging.  

* Networks are 5,10,15,20 - All on an external switch

Network 15 has a Windows 2012 R2 server and a CentOS 6.7 server on it. 

The rest of the networks have a few linux.

Every linux box on every network is happy.  However any and all Windows boxes I bring online are incapable of patching or hitting the web.  I pointed the Windows box to the linux box next to it as a proxy (after installing squid on it)  When I do that the Windows box has no issues at all; it's only when he's attempting to leave on his own.  

On my firewall I put in a 'permit any any' on the M$ box IP however all I see is tcp resets in PCAPs, 

I've been playing with for some time but can't seem to find the issue.  It would be one thing if everything on the 15 was bad but the linux box on the network is fine. Here's the rub, I'm 99.999% sure this used to work.  gggrrr...

Any assistance anyone can offer would be amazingly appreciated.  

Thank you for taking the time to read this.