I am having problems in connecting two switches

[venkatesh_c_r]

Have a windows network of about 15 machines - the lan is connected
using two switches....recently i shifted some machines to another part
of the building....and added one more switch for speed (To the server,
to be precise) .. .LED is glowing properly....but the network is not
functioning...some times pinging the other machines in the network is
successful....but not always...there is not probs with the cable...when
i tried connecting the cable directly into the server, there is no
problem...and this cable is coming from another switch in first floor
of the building...i also tried with various settings duplex speed such
as 100 MBPS full duplex, 100 MBPS half duplex, 10 mpbs full duplex, 10
mbps half duplex etc.,, but nothing works....any help ?????

 

[Yves Leclerc]

Unless the switch has a special "uplink" port or can convert a port to one
automatically, you need to have a cross-over cable to connect two switches
together.

 

[Chuck]

Have a windows network of about 15 machines - the lan is connected
using two switches....recently i shifted some machines to another part
of the building....and added one more switch for speed (To the server,
to be precise) .. .LED is glowing properly....but the network is not
functioning...some times pinging the other machines in the network is
successful....but not always...there is not probs with the cable...when
i tried connecting the cable directly into the server, there is no
problem...and this cable is coming from another switch in first floor
of the building...i also tried with various settings duplex speed such
as 100 MBPS full duplex, 100 MBPS half duplex, 10 mpbs full duplex, 10
mbps half duplex etc.,, but nothing works....any help ?????

Sounds like a defective switch to me. Does the new switch work anywhere else?