I also dealt with this once. Two pieces of advice worth checking:
1. Double check you didn't mix up the gateway and subnet mask in the wrong boxes. I've done it.
2. Sometimes it takes a bit for the static IP to stick. Especially if the devices has been rebooted a lot. I had one that didn't take it until overnight.
Lastly as said by some of the other guys here. Double check the port has the right vlan and the upstream configuration is the same.
Adam R MS | CISSP, CISM, VCP, MCITP, CCNP, ITILv3, CMNO
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