My cobbler service started to report an error PXE-11

[sghdfe]

My cobbler server is 192.168.29.100. If the client is also in the VLAN of 29, the boot is normal. If the client is on another network segment, it will report pxe-11arp timeout PXE-E38: TFTP cannot open connection
What configuration files need to be changed?

My cobbler server is 192.168.29.100. If the client is also in the VLAN of 29, the boot is normal. If the client is on another network segment, it will report pxe-11arp timeout PXE-E38: TFTP cannot open connection
What configuration files need to be changed?

[sghdfe]

Error message:
CLIENT IP：192.168.14.229 MASK：255.255.255.0 DHCP IP：192.168.29.100
PXE-E11:ARP timout
PXE-E11:ARP timout
PXE-E38：TFTP cannot open connect ion
PXE-M0F：Exiting inter PXE ROM