"Limited Connectivity"

[Guest]

At work we have a 4 port adsl modem/router with a fileserver plugged into one
port (permanently) and the other 3 ports used for other people's PCs (that
come and go)

It has been working successfully for months until yesterday. The fileserver
continues to be fine, but ANY PC that you plug in ANY of the other 3 ports
comes back with the message "Limited or no connectivity" as they cannot be
assigned an IP by the router.

I have tried 3 brand new PCs on the ports, each with different makes and
models of network card, each with a clean install of Windows XP Home, each
getting the same problem.

I have tried plugging the fileserver into each of the other 3 ports, and it
is assigned an IP almost instantly with no problems.

I have tried using the fileserver's known-good cable and known-good port
with other pc's and no IP is assigned.

I have tried a full hardware reset of the router and set it up from the
ground up, and have had the same results again.

I'm all out of ideas. Anyone help? Last resort for me is to try a different
router, but i'd like to -understand- the fault rather than just replacing the
router and fixing it that way.

Many thanks

Farkyss

 

[Steve Winograd [MVP]]

At work we have a 4 port adsl modem/router with a fileserver plugged into one
port (permanently) and the other 3 ports used for other people's PCs (that
come and go)

It has been working successfully for months until yesterday. The fileserver
continues to be fine, but ANY PC that you plug in ANY of the other 3 ports
comes back with the message "Limited or no connectivity" as they cannot be
assigned an IP by the router.

I have tried 3 brand new PCs on the ports, each with different makes and
models of network card, each with a clean install of Windows XP Home, each
getting the same problem.

I have tried plugging the fileserver into each of the other 3 ports, and it
is assigned an IP almost instantly with no problems.

I have tried using the fileserver's known-good cable and known-good port
with other pc's and no IP is assigned.

I have tried a full hardware reset of the router and set it up from the
ground up, and have had the same results again.

I'm all out of ideas. Anyone help? Last resort for me is to try a different
router, but i'd like to -understand- the fault rather than just replacing the
router and fixing it that way.

Many thanks

Farkyss

Make sure that the router's DHCP server is enabled and that its pool
of available DHCP addresses is large enough for the file server and
all the computers.

Can the computers connect to the network and to the Internet if you
assign them static IP configurations (IP address, subnet mask, default
gateway, DNS servers) in the right subnet?
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com

 

[Guest]

Although many computers got plugged into the system over the course of time,
the leases should have only lasted 24 hours, and never were there more than 4
pc's connected.

We did a full hardware reset that should have completely purged the router
of any old settings and it still failed.

I tried expanding the range of addresses available to the router from
10.0.0.2-10.0.0.15 to 10.0.0.255 and that still didn't work.

I have since attatched another identical router and found it to work
perfectly, so i'm just assuming there was a problem with the firmware on the
old router that was causing it not to flush old expired leases.

Many thanks