3G to Windows XP Internet Connection Sharing PC to Network Solution

8/21/13 - The Verizon emergency team was able to create a mobile Internet solution for us but our current Cradlepoint MBR-1200 router was unable to connect to the service.  This was my solution:

1. Obtain Verizon provided Android smartphone with HotSpot abilities.
2. Create secured HotSpot for exclusive use by Windows XP laptop.
3. Establish wireless connection between Windows XP laptop and HotSpot.
1. HotSpot assigned 192.168.1.200, 255.255.255.0, 192.168.1.1 to wireless card
4. Connect Windows XP wired network card to ISP port of router
5. Program router pointing its gateway to the wired NIC's address
1. Wired NIC's address was 192.168.0.1
2. ISP router port address 192.168.0.2 with DNS 192.168.0.1, 192.168.1.1
6. Establish Windows XP Internet Connection Sharing on the wireless card.  You'll see a sharing hand icon on the wireless cards NIC when finished.  Leave the firewall on as it's also the ICS service too.
7. Test the connection with network laptop by pinging a website not on the workstations local DNS table.

Things to note:

The shared connection relies on both NIC's to constantly work together.  Anything can cause them to stop pairing.  Ensure to checkbox "Show icon in notification area when connected" on both NIC's so you can keep an eye on them.  If they become unteamed, restart the "Windows Firewall/Internet Connection Sharing" service.

Disable power saving settings on laptop so connection doesn't shutdown when the laptop goes to sleep.

Create a task to stop/start ICS service  (net stop sharedaccess  and net start sharedaccess)
I made a batch file with those two commands in it and had it run every hour.  It's quick and doesn't cause a hiccup if the connection is already working but fixes it if the connection is bad.