KEMP recommends taking a backup of the LoadMaster as a restore point which can be used if needed. To back up the LoadMaster, go to System Configuration > System Administration > Backup/Restore. Click Create Backup File.
Certificates need to be backed up separately. For instructions on how to back up certificates refer to the following article: How do I back up certificates?. Alternately, you can take a snapshot of the virtual machine if you have a Virtual LoadMaster.
You will be prompted to reboot the LoadMaster. Please do so.
After patching, if there are any problems using the WUI, please clear the browser cache and restart the browser.
LoadMaster Highly Available (HA) pairs require each unit be patched separately. Following this process will achieve the least amount of down time since once one fail-over is required. The overall process is as follows: