No printer updates to the latest spar automatically, that will never be a thing, the printer checks for updates to a new General release, which can take years to release, since this is a new issue, and since the printer has had no changes, the change had to happen server side or network side, and to get whatever change happened to be supported by the printer, the only hope is that it is already fixed in spar firmware.
If the issue coincided with DST, and in you are in a region that does change your time, make sure the printer time is indeed correct, because 3 or more minutes off can cause failures with many servers, but you posted Saturday and stated the issue was stared 2 days previous, so I didn't bother with mentioning time, because that isn't when the change occurred.