Replaced Switch with Hub, now have "limited DSL connectivity/no connectivity"

[KACH]

Hello all,
I'd appreciate some help with my little problem. I've browsed this
group & didn't see exactly what I was looking for, so any assistance
would be great. Currently I have Yahoo DSL set-up at my home. The DSL
Modem is connected to a Router. When I first moved in, my roommate had
set it up so the router would connect to a switch that would branch
ethernet cables to his room & mine. Everything was working fine. For
some reason (after getting the XBox 360 Live), he replaced the switch
with a Linksys hub, & at that point I received the "Limited
connectivity" warning & was unable to connect to the Internet. At first
I thought it was a bad hub, so we replaced it with another exactly like
it, & got the same results. Then I thought it was my CPU, so I tried
plugging the cable into my laptop, & then my roommate's laptop, every
time, same "Limited Connectivity" result. When the hub was removed &
the router sent directly to my CPU, it works fine.
I wanted to note that prior to moving in here, I was using an Earthlink
DSL Router connected to the Linksys hub & never had any problems.

I'm pretty good with computers, but don't have much experience with
Networking hardware, so if anyone can point me in the right direction,
or if you may have a remedy, it would be appreciated. I work in graphic
design & it makes my life a lot easier to have 2 computers easily
accessible with net access, hence my need for a permanent solution.

Thank you for your time,
--J.

 

[Guest]

check the hub for a uplink button or port..place the networking cable from
the router into this port or press the uplink button.

 

[KACH]

Thanks for the response. Unfortunately, what you suggested is what I
had done. There's no uplink button & the T1 cable coming from the
router is plugged into the "Uplink" port.

--J.

 

[bkboudreau]

I am not sure if the phone company works the same with T1 as they do
with DSL but usually you have to register your mac addy with them to
connect at all. If that is the case you need to get them the new mac
address.

 

[KACH]

No, that's not the case. We have PCs & like I said, were working fine
before.
Any other ideas? We have yet to solve this . . .

Thanks,
--J.