I have connected a 3120 switch to a 3750 and the problem is when I set the Configuration to Speed 100 duplex Full the link goes down, But when it’s set to “auto” the link is up.
I have tried all the possibilities before requesting the solution on netpro:-
1) Tried different kind of cables (crossover/straightover etc..) without success.
2) Tried using the option “mdx auto” on the 3750 no success.
Is there anything else which you guys gonna give it a try?
Thanks in advance.