Let’s assume want to block certain MAC one hour from now for three daysThe picture is not self-explanatory.
What is the requirement? What are you trying to do?
For the most part all that is needed is select the desired/required options and fill in the time/date information using the approprate time/date format and the applicable device MACs.
Add more information and some additional screenshots to show what you are trying to do.
I think, I got the answer, let me implement, will revert back after thorough testing on couple of devicesYou are able to enter the MAC's - correct?
When the date/time combinations did not work what format was used?
The picture does not show any date fields.
Could be combined date/time. However, I think that that would be readily apparent.
Or dates may be manageable via other tabs....
What make and model device is the picture from?
There may be a User Guide/Manual with showing examples and the required date/time formats.