TFTP Connection timed out error

I'm trying to setup a Kickstart server on Centos 7. When my client machine boots it goes into PXE, gets and IP address and then tries to get the image but fails with the message Connection timed out. Could not read from the boot medium

here is the full message:

net0: 08:00:27:40:2c:d8 using 82540em on PCI00:03.0 (open)

    [Link:up, TX:0 TXE:0 RX:0 RXE:0'

DHCP (net0 08:00:27:40:2c:d8)......ok

net0: 10.0.0.2/255.255.255.0 gw 10.0.0.254

Next server 10.0.0.1

Filename: pxelinux/pxelinux.0

tftp://10.0.0.1/pxelinux/pxelinux.0...........................Connection timed out (http://ipxe.org/4c126035)

No more network devices

FATAL: Could not read from the boot medium! System halted.

I have xinetd service running..there are no errors in system log /var/log/messages

Any tips please...