I use my sisters computer to update my software so manual is the only option.
On the support page for BOClean 426 it says
“a manual update can be done by ftp download from ftp://nsdownloads.comodo.com/pub/boc425.xvu and then moving the file to the location specified in the BOClean configuration screen.”
This refers only to BOClean 425. What is the address for BOClean 426 ?