Problems connecting to internet via ethernet solved ( ? ! )

Hi,
finally I've got my imac back. They have changed the main board, because I was not able to connect over PPPoE.....Just now I've set up the machine and have tried it out ...f..... still the same problem.... then I've changed the location , I mean I changed to the network location the service has used to test the system before returning back to me.... guess what happen?
It was working,
but they were not using PPPoE, but using
TCP/IP
Configure IPv4 : Using DHCP
PPPoE
empty .. not activated
Ethernet
automatically
Proxies
manually
Now I wonder , was it really a defect mainboard, or was it a software problem
...btw: my password for the provider only has 6 digits ... everytime when I was using PPPoE typing in the password, the imac was completing the password by two additional digits ( "dots") .. perhaps that was/is the problem.
Now, as I'm connecting via DHCP the setting in the modem are used ... with the correct password ... anyhow .. it is working now ... but it makes me still wonder why I cannot use PPPoE.
Any comments appreciated.
Regards,
Oliver from Malaysia

Probably yes...
{I say that because I don't remember what mine say
on the cables. They just work, and when they fail,
I get another cable; sometimes the end connectors
get loose or more rare, a wire inside could break...
So, I have spares on hand; probably the right ones.}
• Ethernet: Speed of Ethernet Cabling
http://support.apple.com/kb/TA20669
• Ethernet: Cables Used by Macintosh Computers
http://support.apple.com/kb/TA20668
• Creating a small Ethernet network:
http://support.apple.com/kb/HT1433
Good luck & happy computing!

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