nbp filesize is 0 Bytes server response timeout

[geekyouth]

# server log


2024/01/20 12:16:50.286 [PXE]  ===========================================================
2024/01/20 12:16:50.286 [PXE]         iVentoy 1.0.19 [Windows 64] is running now ...
2024/01/20 12:16:50.286 [PXE]  ===========================================================
2024/01/20 12:16:50.287 [HTTP] NBD service is running on 192.168.3.100:10809 ...
2024/01/20 12:16:50.291 [TFTP] TFTP write thread is running 2616 ...
2024/01/20 12:16:50.291 [HTTP] HTTP PXE service is running on 192.168.3.100:16000 ...
2024/01/20 12:16:50.291 [HTTP] API request: <{"method":"query_status"}>
2024/01/20 12:16:50.292 [DHCP] DHCP service is running ...
2024/01/20 12:16:50.292 [TFTP] TFTP service is running ...
2024/01/20 12:16:50.309 [HTTP] API request: <{"method":"sys_ip_list"}>
2024/01/20 12:16:50.313 [HTTP] API request: <{"method":"get_dhcp_mode"}>
2024/01/20 12:17:18.285 [DHCP] Proc DHCP DISCOVER pkt from client 80fa-5b08-07d0
2024/01/20 12:17:18.285 [DHCP] dhcp_cfg_alloc_ip MAC:80-fa-5b-08-07-d0
2024/01/20 12:17:18.285 [DHCP] dhcp_cfg_alloc_ip alloc ip from pool i=0 192.168.3.100
2024/01/20 12:17:18.285 [DHCP] Recv DHCP Discover from 80fa-5b08-07d0, response DHCP OFFER with ip 192.168.3.100/255.255.255.0
2024/01/20 12:17:18.285 [DHCP] DHCP boot file is <ipxe.x64.snponly.efi.0>
2024/01/20 12:17:22.009 [DHCP] Proc DHCP REQUEST pkt from client 80fa-5b08-07d0
2024/01/20 12:17:22.009 [DHCP] Recv DHCP Offer Request from 80fa-5b08-07d0, response DHCP ACK
2024/01/20 12:18:10.298 [DHCP] Proc DHCP DISCOVER pkt from client 80fa-5b08-07d0
2024/01/20 12:18:10.298 [DHCP] The client already exist, 192.168.3.100 80fa-5b08-07d0 dhcp_rfc_proc_discover 1432
2024/01/20 12:18:10.298 [DHCP] Use the Last IP for PXE Client(80-fa-5b-08-07-d0) in normal mode.
2024/01/20 12:18:10.298 [DHCP] Recv DHCP Discover from 80fa-5b08-07d0, response DHCP OFFER with ip 192.168.3.100/255.255.255.0
2024/01/20 12:18:10.298 [DHCP] DHCP boot file is <ipxe.x64.snponly.efi.0>
2024/01/20 12:18:13.863 [DHCP] Proc DHCP REQUEST pkt from client 80fa-5b08-07d0
2024/01/20 12:18:13.863 [DHCP] Recv DHCP Offer Request from 80fa-5b08-07d0, response DHCP ACK

boot from pxe with ipv4 report error

then boot failed with pxe