Dlink Router

Yes, I understand about the routing aspect but I still need the wireless portion. So, then if I disable the firewall on the dlink router we will still be secure right... by the watchguard firewall?

Yes, if you are tryinh to use the wireless portion of the Dlink tied into the Watchguard, that should work. If you try using VPN or other connection technologies it may cause a problem with two routers. Staying basic should work though.

Make sure you activate wireless security on the Dlink.

Yes you should, just make sure the Dlink doesn't hand out IP's, and your Watchguard LAN IP is your gateway on whatever DHCP server you have.

Here's a way to do what you want.
Wireless-Router-as-a-Simple-Swit.pdf

Did we anser your questions?

Yes, makes sense but when I try to put the Dlink on the same network so  they can access the server-it says you cannot put it on the same subnet?

Ah!  The paper I provided you needs a bit of improvement.  I had just assumed.......

The wireless router has to have an IP address on the LAN side that is *different* from the LAN IP address of anything else, including the modem/router.  Still on the same subnet but different.
So, the modem / router may have 192.168.0.1
and the wireless router may have 192.168.0.2

And .. it does say that DHCP on the wireless router needs to be NOT ENABLED i.e. DISABLED or OFF.

Ok, so if you make those changes, is it resolved now?

This is a mistake, I need to award points to the experts

Ok Guys Looks good!