I'm using bootp, but tftpd crashes

I’m setting up my server to boot several cell computers with bootp. I get the RARP requests, but the replies are lost. My best guess is that TFTPD is dying, which it does if I start it manually. When it goes down I have no error messages I can read because it takes the shell with it. I am using the 4.25D patch for TCP/IP and have the latest OS version and Network drivers.