Known to apply to the following Sophos product(s) and version(s)
Sophos UTM
Sophos UTM v9
Sophos UTM v7
Sophos UTM v8
Operating systems
V7, V8, V9
What To Do
To verify the memory memtest86 or memtest86+ are useful tools.
Download and burn a memtest iso: http://www.memtest.org/ or http://www.memtest86.com/ Boot the AxG with connected monitor, keyboard and USB CD-ROM (memtest ISO insert) .
Example screenshot of defective memory:
