Issue w/ Netgear ProSafe Gigabit Switch GS108

> 2 cameras into Shogun from SDI cable connected to HDMI convertor [...]

   I don't know what any of that stuff is.

> ISSUE: The Network will only work offline after switcher was connected
> to hardwire ethernet.

   What, exactly, does "hardwire ethernet" mean to you?

> Connect Switcher to Hardwire Ether =

   What, exactly, are you connecting to what, exactly?  Some port on the
GS108 to _what_, exactly?

> Remove Hardwire from Wall [...]

   "Wall"?  What is behind this "Wall"?

> Removed Hardwire From Wall out of Switcher  = everything still working

   Come back 24 hours later, and see how well it's working.

   I'm guessing, but it sounds as if you have a bunch of devices which
expect to use DHCP to get their IP parameters, and you're trying to use
them in a network which lacks a DHCP server.

   Knowing nothing, I'd guess that there's some kind of router (which
includes a DHCP server) behind your "Wall".

   You can either configure these devices with static IP parameters
(address, subnet mask, gateway, ...) or you can add a DHCP server to
your "offline network".  The easiest thing might be to add some old
router(which includes a DHCP server), and leave its WAN/Internet port
unconnected.