You need to ssh in to the device and display the content of these two services, like:
cat /usr/lib/systemd/system/dsme.service
PrivateNetwork should be false like: PrivateNetwork=false

then
cat /usr/lib/systemd/system/systemd-hostnamed.service
PrivateNetwork should be commented out like: #PrivateNetwork=true

If you'd like to edit, you can do it with vi (as root) like
devel-su vi /usr/lib/systemd/system/dsme.service
(I recommend to check the manual of vi before trying to use it.)
I usually use this way: once issued that command, I press SHIFT+I, then edit the wanted line, then press ESC, then type :qw! and press enter

I think this is only required if you OTA upgrade from an older sfos to a newer one. This change is already incorporated into the zip file. So, if you have bootloop issue, that should be related to something else.