What you are asking for is an enhancement, the option to disable the network at certain days, right?

Now we could both wait for 5.10.9 to come out and see if things have now been fixed so it works as you expected, or you could put in the request in Trac.

Can you save more than 1 "per day restriction" in 5.10.8? That's one of my issues with this feature (in 5.10.7). I can't save more than 1 day. If I enter values for 2 or more days, only 1 day will actually save.

No. That is actually a bug. I reported it to the devs.

Also, the ability to restrict network usage for whole days would be nice.

I understand and before testing it last night and today I thought the second set of options was to restrict network on those specific days. I've also asked the devs if the day-of-the-week option could be made that way. You could set the global preference to use the network between 00:00-00:01 and then when the day-of-the-week option is repaired, put in the network usage per day.

Is there somewhere I, a lowly non-programmer, can put these items so the BOINC programmers will see them in an official capacity?

Yes, you can ask for this as an enhancement in BOINC Trac. It needs registration. When registered, make a new ticket.

By the way, I downloaded 'a new version' of 5.10.8 and installed it clean in another location.

It'll be a frosty Friday in hell before I ever lift a finger to help anyone here again.

Is that a promise? With thanks.

Confirm this behavior: Only saves Sundays:

Comment on input and functionality:

a. The format is provided by hovering mouse over time fields
b. The times are the ALLOWED times. I.A.W. If you dont want it to connect from 18:00 to 08:00 next day you need to enter day 1 xx:xx-17:59 and day 2 from 08:01-xx:xx (where xx:xx is the chosen open or closing time.

I've tried this on earlier versions of 5.10.x and it worked at the time.

When entering only Monday-Tuesday it only saves Monday. If including Sunday, only Sunday is stored.

Found that the additional time should not overlay the general restricted time

No, a whole day is 00:00-23:59 (that's 24 hours).

OK, let me make sure I've got this straight. Entering 00:00-23:59 into a day-specific field will tell BOINC to use the network for that whole day. Entering 00:00-00:00 into a day-specific field will tell BOINC to suspend network activity for that whole day.

No, it's the other way around.
Entering 00:00-00:00 tells BOINC it has no restriction. Removing the check on that day will do the same.
Entering 00:00-23:59 tells BOINC it has a restriction.

No, a whole day is 00:00-23:59 (that's 24 hours).

Set the desired times when BOINC shouldn't use the network, at the "every day between the hours of"

and then check the days that you want it to give extra restrictions. When checking a day, the time restriction given must be HH:MM-HH:MM