I am using two Windows 7 Pro laptops with Windows Firewall disabled and static IPs set on both to the same subnet.  I added flow control and port security just to try to get it working (I have removed them now), as I wasn't sure what the defaults were.  When I enable spanning tree, the output of the spanning tree command is:

console# show spanning-tree active

Spanning tree enabled mode RSTP

Default port cost method: long

 Root ID    Priority    32768

            Address     00:15:c5:2a:f3:fd

            This switch is the root

            Hello Time  2 sec  Max Age 20 sec  Forward Delay 15 sec

 Number of topology changes 1 last change occurred 00:00:03 ago

 Times:  hold 1, topology change 35, notification 2

         hello 2, max age 20, forward delay 15

Interfaces

Name   State   Prio.Nbr   Cost     Sts   Role PortFast       Type        

------ -------- -------- --------- ------ ---- -------- -----------------

 g1   enabled   128.1     20000    FRW   Desg    No       P2p (RSTP)    

 g2   enabled   128.2     20000    FRW   Desg    No       P2p (RSTP)

The port counters command is:

console# show interfaces counters ethernet g2

     Port        InOctets  InUcastPkts InMcastPkts InBcastPkts

---------------- ---------- ----------- ----------- -----------

      g2          52118         0          248         245    

     Port       OutOctets  OutUcastPkts OutMcastPkts OutBcastPkts

---------------- ---------- ------------ ------------ ------------

      g2           6888         1            92           12      

FCS Errors: 0

Single Collision Frames: 0

Late Collisions: 0

Excessive Collisions: 0

Oversize Packets: 0

Internal MAC Rx Errors: 0

Received Pause Frames: 0

Transmitted Pause Frames: 0

console# show rmon statistics ethernet g2

Port g2

Dropped: 0        

Octets: 53748                    Packets: 509      

Broadcast: 257                   Multicast: 252      

CRC Align Errors: 0              Collisions: 0        

Undersize Pkts: 0                Oversize Pkts: 0        

Fragments: 0                     Jabbers: 0        

64 Octets: 164                   65 to 127 Octets: 386      

128 to 255 Octets: 64            256 to 511 Octets: 9        

512 to 1023 Octets: 0            1024 to 1518 Octets: 0

I have tried updating the firmware to 2.0.0.19, and that did not solve any problems.  I am currently running 2.0.0.19, when I ran the above commands.

console# show version

SW version    2.0.0.19 ( date  05-May-2008 time  16:33:30 )

Boot version    1.0.0.13 ( date  13-Aug-2003 time  15:28:31 )

HW version    00.01.64

I tried setting the ports to force 1000/full duplex with no change.  I have swapped cables and these are known-good with another switch.  

Yes, if I direct connect the laptops together or through another switch, both of them can ping each other.  No anti-virus besides Windows Firewall is running, and Windows Firewall is disabled.

I moved one laptop to port g24 and moved the second to g23, to my surprise, the pings worked!  I then went and did a port-by-port test, and it appears only ports 15-24 work on my switch.  All the other act like they are working (linkup, stp forwards etc.) but I cannot pass any traffic.

I'm not sure what else besides a hardware problem causes this with the default configuration.