I have the following setup in my home office:
Fiber-optic service from my service provider passes through the service provider's ONT in the basement and into my apartment via an Ethernet cable
Ethernet cable connects to a switch (NetGear GS105E)
One port of the switch connects directly to my home server machine using DHCP with the service provider. THIS CURRENTLY WORKS
A second port of the switch connects directly to a second dedicated static IP port on my home server machine (I use this for remote management). I pay for this static IP from my service provider. THIS CURRENTLY WORKS
A third port of the switch connects to a wireless router (NetGear WNR2000), which attempts to pull up a second dynamic IP using DHCP with the service provider. THIS DOES NOT WORK: Release/Renew pulls up 0.0.0.0
My service provider provides 2 dynamic IP addresses (in addition to the static). I have called the service provider and both dynamic addresses are available (and not locked to some lease timeout for a previous connection). As noted above, one and only one of these dynamic IP addresses currently works just fine.
If I connect the router DIRECTLY to the incoming cable (removing the switch), the router immediately pulls up a proper dynamic IP from the service provider.
It seems clear to me that the router is somehow in conflict with the switch.
The switch has an administrative interface which allows me to connect to the switch as an independent IP device, which I have used to change settings on the switch to attempt to resolve the problem, as follows.
My router provides a local network with the standard 192.168.1.xxx subnet.
I have attempted multiple settings on the NetGear switch to overcome the problem:
"DHCP mode" which causes the switch to provide itself a 192.168.0.xxx address.
Static mode, in which I type 192.168.1.100 for the switch. NOTE: A gateway is also requested, and I have NO IDEA what gateway to use here (using the router as a gateway isn't correct, and the switch cannot see the router's 192.168.1.xxx subnet in any case). I do not know if this gateway is the problem, or not.
In other words, I have set the subnet of the switch's IP both to be the SAME AS, and DIFFERENT FROM, the router's subnet (though again, I don't see why this should matter since the switch cannot see the router's LAN-side subnet).
Can someone please tell me what I must do to get the router to pull up a dynamic IP through the switch?