Whs Not Sleeping Anymore

Hi

I have a WHS setup which has been working for multiple years. I do have LightsOut (with network activity 50KB/s rule as well as CPU 35%). However, as of the last couple of weeks it does not sleep anymore.
I have CrashPlan installed on the server to act as an additional backup target (but I also had this for a year and it has been working fine for a long time). My theory is that CP is keeping the machine awake but it is hard to track down exactly since the log file only states that there is CPU and memory load, but it does not tell me who exactly is keeping the machine awake.

Here is a snippet of yesterdays logfile:

 
2012-12-08 23:17:42:250 [  19] DEBUG - CPUMonitor: No activity, count 1/5, max. value 56%
2012-12-08 23:17:42:265 [  19] DEBUG NO ACTIVITY DETECTED, action=Suspend, forcedAction=DoNothing, forced=False
2012-12-08 23:17:42:265 [  19] DEBUG >> Global wait timer enabled, Action Suspend, Interval 20 minutes
2012-12-08 23:20:02:250 [  22] DEBUG network counter change: Check every 00:05:00 triggered
2012-12-08 23:21:12:250 [  22] DEBUG + NetworkMonitor: Activity,	count 10/5, max. value 323,6 KB/s
2012-12-08 23:21:12:250 [  22] DEBUG ACTIVITY SIGNALED BY: NetworkLoad, action=Suspend
2012-12-08 23:21:12:250 [  22] DEBUG -- Global wait timer stopped
2012-12-08 23:21:22:250 [  22] DEBUG - NetworkMonitor: No activity, count 4/5, max. value 323,7 KB/s
2012-12-08 23:21:22:250 [  22] DEBUG NO ACTIVITY DETECTED, action=Suspend, forcedAction=DoNothing, forced=False
2012-12-08 23:21:22:250 [  22] DEBUG >> Global wait timer enabled, Action Suspend, Interval 20 minutes
2012-12-08 23:25:12:250 [  17] DEBUG network counter change: Check every 00:05:00 triggered
2012-12-08 23:28:42:281 [  19] DEBUG + CPUMonitor: Activity,	count 5/5, max. value 100%
2012-12-08 23:28:42:281 [  19] DEBUG ACTIVITY SIGNALED BY: CpuLoad, action=Suspend
2012-12-08 23:28:42:281 [  19] DEBUG -- Global wait timer stopped
2012-12-08 23:28:52:296 [  19] DEBUG - CPUMonitor: No activity, count 2/5, max. value 100%
2012-12-08 23:28:52:312 [  19] DEBUG NO ACTIVITY DETECTED, action=Suspend, forcedAction=DoNothing, forced=False
2012-12-08 23:28:52:312 [  19] DEBUG >> Global wait timer enabled, Action Suspend, Interval 20 minutes
2012-12-08 23:30:12:343 [  19] DEBUG network counter change: Check every 00:05:00 triggered
2012-12-08 23:31:02:359 [  19] DEBUG Scan network: Check every 00:30:00 triggered
2012-12-08 23:31:02:375 [  19] DEBUG IPDeviceMonitor is active
2012-12-08 23:31:02:375 [  19] WARN  IPDeviceMonitor: Range 16777215 for network 10.0.0.1 exceeds limit, network scan cancelled
2012-12-08 23:31:02:375 [  19] DEBUG Hourly logging: Check every 01:00:00 triggered
2012-12-08 23:31:02:375 [  19] DEBUG NO ACTIVITY DETECTED, action=Suspend, forcedAction=DoNothing, forced=False
2012-12-08 23:31:02:375 [  19] DEBUG VerifyLicense (LicenseValid/29/NoError)
2012-12-08 23:35:12:375 [  22] DEBUG network counter change: Check every 00:05:00 triggered
2012-12-08 23:36:22:375 [  19] DEBUG + NetworkMonitor: Activity,	count 5/5, max. value 317,3 KB/s
2012-12-08 23:36:22:390 [  19] DEBUG ACTIVITY SIGNALED BY: NetworkLoad, action=Suspend
2012-12-08 23:36:22:390 [  19] DEBUG -- Global wait timer stopped
2012-12-08 23:36:42:390 [  17] DEBUG - NetworkMonitor: No activity, count 3/5, max. value 329,6 KB/s
2012-12-08 23:36:42:390 [  17] DEBUG NO ACTIVITY DETECTED, action=Suspend, forcedAction=DoNothing, forced=False
2012-12-08 23:36:42:390 [  17] DEBUG >> Global wait timer enabled, Action Suspend, Interval 20 minutes
2012-12-08 23:39:02:375 [  22] DEBUG + CPUMonitor: Activity,	count 5/5, max. value 96%
2012-12-08 23:39:02:375 [  22] DEBUG ACTIVITY SIGNALED BY: CpuLoad, action=Suspend
2012-12-08 23:39:02:375 [  22] DEBUG -- Global wait timer stopped
2012-12-08 23:39:12:390 [  22] DEBUG - CPUMonitor: No activity, count 0/5, max. value 21%
2012-12-08 23:39:12:390 [  22] DEBUG NO ACTIVITY DETECTED, action=Suspend, forcedAction=DoNothing, forced=False
2012-12-08 23:39:12:390 [  22] DEBUG >> Global wait timer enabled, Action Suspend, Interval 20 minutes
2012-12-08 23:40:22:375 [  19] DEBUG network counter change: Check every 00:05:00 triggered
2012-12-08 23:45:22:390 [  22] DEBUG network counter change: Check every 00:05:00 triggered
2012-12-08 23:49:12:390 [  22] DEBUG + CPUMonitor: Activity,	count 5/5, max. value 95%
2012-12-08 23:49:12:390 [  22] DEBUG ACTIVITY SIGNALED BY: CpuLoad, action=Suspend
2012-12-08 23:49:12:390 [  22] DEBUG -- Global wait timer stopped
2012-12-08 23:49:22:375 [  22] DEBUG - CPUMonitor: No activity, count 0/5, max. value 05%
2012-12-08 23:49:22:390 [  22] DEBUG NO ACTIVITY DETECTED, action=Suspend, forcedAction=DoNothing, forced=False
2012-12-08 23:49:22:390 [  22] DEBUG >> Global wait timer enabled, Action Suspend, Interval 20 minutes
2012-12-08 23:50:32:406 [  19] DEBUG network counter change: Check every 00:05:00 triggered
2012-12-08 23:51:42:390 [  17] DEBUG + NetworkMonitor: Activity,	count 6/5, max. value 315,4 KB/s
2012-12-08 23:51:42:390 [  17] DEBUG ACTIVITY SIGNALED BY: NetworkLoad, action=Suspend
2012-12-08 23:51:42:390 [  17] DEBUG -- Global wait timer stopped
2012-12-08 23:52:02:375 [  22] DEBUG - NetworkMonitor: No activity, count 2/5, max. value 191,9 KB/s
2012-12-08 23:52:02:375 [  22] DEBUG NO ACTIVITY DETECTED, action=Suspend, forcedAction=DoNothing, forced=False
2012-12-08 23:52:02:390 [  22] DEBUG >> Global wait timer enabled, Action Suspend, Interval 20 minutes
2012-12-08 23:55:32:562 [  19] DEBUG network counter change: Check every 00:05:00 triggered
2012-12-08 23:59:22:640 [  17] DEBUG + CPUMonitor: Activity,	count 5/5, max. value 95%
2012-12-08 23:59:22:640 [  17] DEBUG ACTIVITY SIGNALED BY: CpuLoad, action=Suspend
2012-12-08 23:59:22:640 [  17] DEBUG -- Global wait timer stopped
2012-12-08 23:59:32:625 [  19] DEBUG - CPUMonitor: No activity, count 0/5, max. value 03%
2012-12-08 23:59:32:640 [  19] DEBUG NO ACTIVITY DETECTED, action=Suspend, forcedAction=DoNothing, forced=False
2012-12-08 23:59:32:640 [  19] DEBUG >> Global wait timer enabled, Action Suspend, Interval 20 minutes

What is the best way to track down this problem?