unless I'm missing something...

[Vicodin]

Okay, this is weird or I'm blind and stupid.

I'm using a Linksys Wireless G router. All 4 ports are filled so I figure I would toss this 16 port Linksys switch into the mix.

DHCP enabled.

XP Pro on all the boxes. Windows firewall off.

Pick any port on the router and connect it to the uplink of the switch and it's supposed to work, right?

It isn't.

Am I doing something wrong?

Be gentle, I'm sensitive.

Fold on.

[entropy]

Don't you need to turn DHCP off on the switch? I'm not sure, I've never connected a switch to my router - only another router, and, well, that worked just fine, so maybe I'm totally off here....

[csimon]

XP Pro on all the boxes. Windows firewall off.


SP1 or 2?

[Donut]

By chance is the switch auto-sensing? I'm not sure but I think my old 4-port Linksys switch needed a cross-over cable to connect to my router. (probibly why the switch is buried in the closet.)

[Vicodin]

SP1 or 2?

SP2 on one of them, SP1 on the others.

Even stranger... and this makes NO sense - I set it up exactly how I described above except I changed the port from 2 to 3.

Now it works.

(sigh)

Thanks for the input peeps.

Fold on.

[Clutch]

You might have to have a crossover cable coming from one of the ports on the router to a port on the switch. That is how I have my network setup. I got a 4 port switch with 3 computers on it, and then a crossover cable to the 8 port switch with the other computer on it. Works like a charm for me, all computers get an ip address from the router and can see each other on the network.

[EMT]

Given you have an uplink port on the switch you should not need a crossover cable to connect it to the router. The only explanations I can offer are these:
(1) Sometimes the uplink port is really two ports, one MDI and one MDI-X, and only one can be used at a time; also in some cases a button toggles one port to be uplink (MDI) or normal (MDI-X) but I doubt that was the case
(2) Pretty commonly, routers are auto MDI, MDI-X meaning it doesn't matter what type of cable you use to which kind of port, it will switch each port to the necessary configuration to allow a connection. So in this case maybe you connected MDI-X(switch) to auto MDI, MDI-X(router) and it was fine... perhaps the other port was dead or something.

Really just test it some more if you want to figure out what's going on.