To make it brief: if for whatever reason sabnzbd is closed/shutdown say at 11:00, there's a scheduled enable server at 11:20, and I startup sabnzbd again later at 11:30, the supposed enable_server doesn't happen.
If the computer is on and sabnzbd is running the schedules work fine.
I don't know if this behaviour also applies to pause/speedlimit/resume options of the scheduler, I haven't tried.
I'm using version 0.6.15 (but it happened in 6.9 and 6.10 too) on win7, I installed from zip.
A simple way to reproduce this is shutdown sabnzb, add manually a scheduler enable/disable on the ini and starting sabnzbd.
This is a issue for me because I have a news server that only allows connection overnight (from 2AM to 2PM), and I don't leave my pc always on, so quite often I have to add to the scheduler an enable server to make it work with the side effect of cluttering the scheduler page.
Below is part of the debug log of when i recreated the issue changing the .ini (i snipped some stuff to make it less bulky, if needed i can post the full log)
2012-02-21 15:05:14,111::INFO::[sabnzbd:1207] --------------------------------
2012-02-21 15:05:14,111::INFO::[sabnzbd:1208] SABnzbd.exe-0.6.15 (rev=d06f957a0f05a8766822acaa6de1f6d1e9f279e0)
2012-02-21 15:05:14,178::INFO::[sabnzbd:1216] Platform=Windows-Vista-6.1.7601-SP1 (=Vista+ x64) Class=nt
2012-02-21 15:05:14,178::INFO::[sabnzbd:1221] Python-version = 2.5.5 (r255:77872, Jan 31 2010, 15:49:35) [MSC v.1310 32 bit (Intel)]
2012-02-21 15:05:14,334::DEBUG::[scheduler:123] scheduling disable_server(['reader.extremeusenet.nl']) on days [1, 2, 3, 4, 5, 6, 7] at 14:0
2012-02-21 15:05:14,334::DEBUG::[scheduler:123] scheduling enable_server(['reader.extremeusenet.nl']) on days [1, 2, 3, 4, 5, 6, 7] at 2:1
2012-02-21 15:05:14,334::DEBUG::[scheduler:123] scheduling disable_server(['reader4.xlned.com']) on days [1, 2, 3, 4, 5, 6, 7] at 15:1
2012-02-21 15:05:14,334::DEBUG::[scheduler:136] Scheduling RSS interval task every 180 min (delay=120)
2012-02-21 15:05:14,334::DEBUG::[scheduler:147] Scheduling VersionCheck on day 2 at 21:36
2012-02-21 15:05:14,335::DEBUG::[scheduler:267] Schedule check result = (9296, 'enable_server', 'reader.extremeusenet.nl', '1 2 * enable_server reader.extremeusenet.nl')
2012-02-21 15:05:14,335::DEBUG::[scheduler:267] Schedule check result = (10015, 'disable_server', 'reader.extremeusenet.nl', '0 14 * disable_server reader.extremeusenet.nl')
2012-02-21 15:05:14,335::DEBUG::[scheduler:267] Schedule check result = (10076, 'disable_server', 'reader4.xlned.com', '1 15 * disable_server reader4.xlned.com')
2012-02-21 15:05:14,335::INFO::[downloader:194] Resuming
2012-02-21 15:05:14,335::DEBUG::[__init__:479] PAUSED_ALL inactive
2012-02-21 15:05:14,348::INFO::[__init__:289] All processes started
2012-02-21 15:05:20,118::INFO::[sabnzbd:1471] Starting SABnzbd.exe-0.6.15
2012-02-21 15:05:20,118::DEBUG::[__init__:300] Starting postprocessor
2012-02-21 15:05:25,361::DEBUG::[nzbqueue:419] Resumed nzo: SABnzbd_nzo_nt-qpk
2012-02-21 15:05:27,232::INFO::[downloader:351] 1@reader4.xlned.com:563: Initiating connection
2012-02-21 15:05:28,318::INFO::[downloader:351] 2@reader4.xlned.com:563: Initiating connection
2012-02-21 15:05:29,871::INFO::[downloader:539] Connecting 1@reader4.xlned.com:563 finished
2012-02-21 15:05:29,885::INFO::[downloader:539] Connecting 2@reader4.xlned.com:563 finished
2012-02-21 15:05:32,779::DEBUG::[decoder:92] Decoding <Article: article=in6Cixwe9rKqRDoOAZf2@noid.local, bytes=398570, partnum=3, art_id=None>
2012-02-21 15:05:34,375::DEBUG::[bpsmeter:179] bps: 163315.585919
As you can see, reader4.xlned.com should be disabled, but it actually connects.
In the rest of the log the other server also tries to connect when it should be disabled and gave a 502 error because i can't connect at this hour.

