devices down and up repeatedly when ARPSCAN does not run before 'Process Scan'

[dsnz]

initially I had many scanners and this together with the issue with long update time in "[API] api_endpoint_class: Writing table_plugins_events.json" made the resulting schedule out of sync

now I have only ARPSCAN, NBTSCAN (both at 3 minutes initially and hoping to get it down to 2 minutes) , Internet scan and Rogue DHCP scan (both at 5 minutes) , which are all very fast

however I saw again that the schedule was never exact , or how to say .. cron-like..,
and I think it's because of a main loop that does all scheduling and processing , which of course cannot do an accurate cron-like schedule
but maybe this would not big issue except for the following new problem that surfaced and annoys a lot

it now happens that with these few and fast scanners that the
'Process Scan' runs twice in sequence without an intervening ARPSCAN in-between
but by some kind of processing the system assumes that all devices are down !! (ARPSCAN did not say the devices are up so they must be down !!)
so all day long I get frequently a notification listing 10-20 devices down including even the Router (!) and soon within 30-60 sec a new notification that all devices are up

is this a bug or have I done something wrong in settings ?

ref discussion

[jokob-sk]

now I have only ARPSCAN, NBTSCAN (both at 3 minutes initially and hoping to get it down to 2 minutes) , Internet scan and Rogue DHCP scan (both at 5 minutes) , which are all very fast

You have misaligned schedules probably causing this, please follow the docs: https://jokob-sk.github.io/NetAlertX/NOTIFICATIONS/?h=same+schedule

[jokob-sk]

sounds like it's misconfigured - I have never experienced this and didn't hear any complains from others following the docs

[dsnz]

you could do a mock test replicating the sequence I gave as example and see what happens , I'm curious too

however I have debug logs,
I will extract a good enough log of a time interval and send you for examination
(you can understand the logs better than me)

I will send later at night when I sit in front of Synology

[dsnz]

can you give me a private email to send log extract ?
I would not like to share here in order to not expose my network device details
you can email me at the email I have on GitHub
:)

[jokob-sk]

You can use [email protected]

[dsnz]

hi,
unfortunately there are no logs now
(when 2 days passed I thought there might be no reply because the discussion was closed .. - I hadn't used discussions before to know how they work - and I deleted the existing container in order to put a new custom container)