All,
I have a Linksys BEFSR41 ver2 4-Port router with the following setup:

DSL Modem
  |
  | <-- Straight-through cable
  |
Router  (WAN Port)
Router  (LAN Port)
  | |
  | |---------- Computer
  |  
  | <-- Straight-through cable
  |
3Com Superstack II (Hub)
  | |
  | |-----Computer
  |
Computer

I'm not sure where the problem is related so I'm hitting this forum and the 3Com forum also.

The problem is when I connect the cable from the router to the 3Com hub I get no light indicator and of course no signal either. I've used a straight-through & cross-over cable plugged into the UpLink and regular ports in case I was missing something there also. I have tested all cables, connections, etc. individually but can't for the life of me figure out the problem.  I have also replaced the hub with other brands, etc. to no avail. If I pull out the hub and use just a straight-through in a regular port then I can hit everything fine so it has something to do with the connection between the two devices.

Is there a setting I'm missing in the router?  It's all basically default settings. I'm not used to the home-networking routers. I'm a Cisco man by trade, but this is for a friend. Any help would be greatly appreciated.

Use the uplink on the router, to a regular port on the hub with a straight thru cable.  Do not use port 1 of the router.

I was a little too quick to hit 'Submit'

I wanted to add that only 'uplink' or lan port 1 of the router can be used at 1 time.  They are the same connection point, just different wiring.

Smah,
Thank you SO much!!  That did the trick.  I had the first PC on port 1.  I moved it to port 2 and used the uplink port with a straight-through going back to the hub and saw traffic immediately!  What a great site this is.  Thank you again.  Merry X-mas!

You're welcome and Merry X-mas to you also.