I recently updated our SLES SP1 x86-64 server running ZCM 10.0.3 to ZCM 10.1. This server is the only server in the zone. We use Port 32 for HTTP and Port 40 for HTTPS for ZCM since OES2 is also running on the server.

The upgrade seemed to go correctly, nothing unusual in the upgrade log, and services started as expected.

But unfortunately, after the update, my PXE clients are no longer downloading all of the imaging files from the imaging server.

I've confirmed that novell-tftp, novell-proxydhcp, and novell-pbserver are running. I've also rebooted.

Symptoms

When network booting through PXE, the ZenWorks server does deliver an IP address to the client workstation, however, the download process never completes. Here is what is displayed on the screen of the client workstation:
Code:
Novell Preboot Execution (PXE) Agent v10.1.0.0
Copyright Novell, Inc. All Rights Reserverd
Send queries to 146.221.67.31
Contacting Novell Preboot Policy Service ... Done
PXE-M0F: Exiting Intel boot Agent
Operation System not found
The above behavior is the same either when assigning imaging work or when trying to manually enter the PXE menu using CTRL + DELETE.

I verified in the ZCC that the ZCM server zone is configured to allow CTRL + DELETE. The device object for the workstation does not have any override settings configured.

Logs
I started digging on the logs. Below, I am comparing log sets from before the upgrade to after the upgrade for each log.

/var/opt/novell/log/novell-tftp.log 10.0.1 (10.0.3) behavior:
Code:
Received error packet from client:  0 --> TFTP Aborted
Read request from 146.221.93.243:2070 failed:
  Error in sending an OPTION ACK packet
File sent to 146.221.93.243:2071 --> nvlnbp.sys
File sent to 146.221.93.243:2072 --> pxemenu.txt
File sent to 146.221.93.243:2073 --> pxelinux.0
File sent to 146.221.93.243:57089 --> z_maint.cfg
File sent to 146.221.93.243:57090 --> boot/linux
File sent to 146.221.93.243:57091 --> boot/initrd
Received an empty filename
File sent to 146.221.93.243:30001 --> boot/root
File sent to 146.221.93.243:30001 --> boot/settings.txt
/var/opt/novell/log/novell-tftp.log 10.1 behavior:
Code:
  Received error packet from client:  0 --> TFTP Aborted
Read request from 146.221.153.234:2070 failed:
  Error in sending an OPTION ACK packet
File sent to 146.221.153.234:2071 --> nvlnbp.sys
The client doesn't appear to be downloading the remainder of the files according to the log.