Ibook G4 ethernet connection problems

[digitalpencil]

Hi,
I'm having problems connecting with my Ibook G4 to a cat5 connection. I tested the connection with another machine and it's good and my Ibook connects to other cat5 connections but not some and not the connection in my room.

Network preferences informs me that I am connected to the network and that I have access to the internet but when i load up any of 5 browsers they all inform me that they cannot find a server. I have a DHCP assigned ip and my book connects in my university library and also via airport in all locations. My firewall is off as are all other security applications.

Has anyone experienced this problem before and know how to fix it or can point me in the right directoin to find out how?
Alternatively, has anyone ever heard of a cheap wireless transimitter that just plugs straight into a cat5 and doesn't require a wired computer to connect to it?

 

[SYQUEST]

A few things you might try:

Replace the patch cord w/ a known good CAT5e or 6 type.

Have the jack hardware and/or cable connections checked for
continnuity with a meter or cable tester for shorts, opens or
intermittent connections.

This should be done at both ends of the data line.

Hope this helps!

....JIM....

 

[ObviousTroll]

pencil,

If you are comfortable with the Terminal program, try running terminal and typing:

ifconfig

You will get a ton of output. On a powerbook, en0 is the ethernet and en1 is the airport, so ignore everything but the en0 section. The important bit is the inet address:

en0:...
inet 192.168.1.100 netmask 0xffffff00 broadcast 192.168.1.255
...

If you don't see an "inet" line then the DHCP server didn't give you a proper IP address. If you *do* see an "inet" line then you are hooked up and the problem is with routing or DNS.