At this time, this is a question only for my (your) future reference. Because of a hub (yes, an old dumb hub) failure, I tried to put back into service an old Netgear wireless home router from 2005 or so model wgt624v3. Using the manual, etc., I was able to get working all services for my purposes, except one. Once connected, it allowed me to see all the other PCs on the LAN, but did not allow the PCs on it to access the WAN (inet). What did I miss? I disabled DHCP, wireless & anything else I thought uneccessary for it to be just a local switch (to replace the hub). I did not kick in the WAN functionality of the Netgear since we have a router from our ISP that does that. I don't see why it is necessary for the Netgear to be WAN, but again is it that or something else I missed setting right?
-This is a curiosity question because I disconnected & moved the badly-acting hub, swapped it with a switch from another place on the network, and now the hub seems to be back working at its new site (who knows for how long?). So I don't need the Netgear for now.