Mac/Linux boxes losing Windows 7 share after an hour or so..

[cm2785]

Hey guys I have a brand new box with a Supermicro C7Z170-OCE board which has two Intel NIC's. An I219-W and an I210. Anyway, I can connect via SMB to the Mac and the Linux box with no problems, and other Windows machines connect natively just fine, but after a bit the Mac and Linux boxes both lose the connection. When I try to reconnect they claim they can't find the system. I can restart the Mac or Linux and still have no luck, but if I restart the Windows box they instantly start working again.. and then the circle continues.. Does anyone have any ideas on what to try? I of course have the system set not to go into sleep mode. It's on High Performance in the Power settings.

Thanks for any help!!

 

[cm2785]

Can anyone help me? What's strange is when this happens cutting the connection and reenabling it doesn't make it work again. Windows 7 has to be restarted before it will work. I appreciate any help!