KX-T: NCP problem

[Jody C]

Hi guys

Just installed an NCP500 with 12 KX-NT366 self labelling IP phones and a PRI

Installed on a small network with a POE switch

Every now and then the IP handsets lock up and restart

Have checked the system programming and replaced the POE switch but it keeps
happening

NCP is on static IP and the server is dishing out DHCP

All the phones are set to DHCP and there are no IP conflicts

Any ideas??

Jody