I've got a strange issue where a number of my machines are not checking for policy, at least the date/time is not being updated in the console.  With the right-click tools, I can trigger a machine policy retrieval.  The systems pull policy and time is updated.  However, they will not start pulling on their own after that.  I don't see any errors in the PolicyAgent log, and the location services log seems normal.   Has anyone else experie

  I don't see any errors in the PolicyAgent log

You don't see any errors, but do you see that logfile being updated every once in a while?

Yep.  The log file has constant activity.  Here is an snip of the log file, but this system only shows to have checked for policy 17 hours ago from this posting. (This was the one that I forced because it had been a few days since it checked policy. I have a few systems that experience the same behavior.

Requesting Machine policy assignments    PolicyAgent_RequestAssignments    3/13/2014 6:22:30 AM    35344 (0x8A10)
Requesting Machine policy from authority 'SMS:PS1'    PolicyAgent_RequestAssignments    3/13/2014 6:22:30 AM    35344 (0x8A10)
Raising event:
instance of CCM_PolicyAgent_AssignmentsRequested
{
    AuthorityName = "SMS:PS1";
    ClientID = "GUID:DB86590F-CFA0-438E-8DAD-EC9B775CFF31";
    DateTime = "20140313112231.054000+000";
    ProcessID = 4540;
    ResourceName = "CTXPUB004";
    ResourceType = "Machine";
    ThreadID = 35344;
};
    PolicyAgent_RequestAssignments    3/13/2014 6:22:31 AM    35344 (0x8A10)
Requesting User policy assignments for 'S-1-5-21-2105027866-1443240842-1445603992-2038'    PolicyAgent_RequestAssignments    3/13/2014 6:46:16 AM    34724 (0x87A4)
Requesting User policy from authority 'SMS:PS1'    PolicyAgent_RequestAssignments    3/13/2014 6:46:16 AM    34724 (0x87A4)
Raising event:
instance of CCM_PolicyAgent_AssignmentsRequested
{
    AuthorityName = "SMS:PS1";
    ClientID = "GUID:DB86590F-CFA0-438E-8DAD-EC9B775CFF31";
    DateTime = "20140313114616.777000+000";
    ProcessID = 4540;
    ResourceName = "S-1-5-21-2105027866-1443240842-1445603992-2038";
    ResourceType = "User";
    ThreadID = 34724;
};
    PolicyAgent_RequestAssignments    3/13/2014 6:46:16 AM    34724 (0x87A4)
Processing User assignments from 'SMS:PS1'. The new cookie is '2014-01-03 23:25:08.597'.    PolicyAgent_ReplyAssignments    3/13/2014 6:46:16 AM    26876 (0x68FC)
Raising event:
instance of CCM_PolicyAgent_AssignmentsReceived
{
    AuthorityName = "SMS:PS1";
    ClientID = "GUID:DB86590F-CFA0-438E-8DAD-EC9B775CFF31";
    DateTime = "20140313114616.917000+000";
    ProcessID = 4540;
    ReplyType = "Delta";
    ResourceName = "S-1-5-21-2105027866-1443240842-1445603992-2038";
    ResourceType = "User";
    ThreadID = 26876;
};
    PolicyAgent_ReplyAssignments    3/13/2014 6:46:16 AM    26876 (0x68FC)
Received User delta policy update with 0 assignments    PolicyAgent_ReplyAssignments    3/13/2014 6:46:16 AM    26876 (0x68FC)
User 'S-1-5-21-2105027866-1443240842-1445603992-2038' is member of 25 Domain Security Groups    PolicyAgent_ReplyAssignments    3/13/2014 6:46:16 AM    26876 (0x68FC)
Requesting User policy assignments for 'S-1-5-21-2105027866-1443240842-1445603992-31363'    PolicyAgent_RequestAssignments    3/13/2014 6:52:29 AM    33880 (0x8458)
Requesting User policy from authority 'SMS:PS1'    PolicyAgent_RequestAssignments    3/13/2014 6:52:29 AM    33880 (0x8458)
Raising event:
instance of CCM_PolicyAgent_AssignmentsRequested
{
    AuthorityName = "SMS:PS1";
    ClientID = "GUID:DB86590F-CFA0-438E-8DAD-EC9B775CFF31";
    DateTime = "20140313115229.860000+000";
    ProcessID = 4540;
    ResourceName = "S-1-5-21-2105027866-1443240842-1445603992-31363";
    ResourceType = "User";
    ThreadID = 33880;
};
    PolicyAgent_RequestAssignments    3/13/2014 6:52:29 AM    33880 (0x8458)
Requesting User policy assignments for 'S-1-5-21-2105027866-1443240842-1445603992-41557'    PolicyAgent_RequestAssignments    3/13/2014 7:05:34 AM    29760 (0x7440)
Requesting User policy from authority 'SMS:PS1'    PolicyAgent_RequestAssignments    3/13/2014 7:05:34 AM    29760 (0x7440)
Raising event:
instance of CCM_PolicyAgent_AssignmentsRequested
{
    AuthorityName = "SMS:PS1";
    ClientID = "GUID:DB86590F-CFA0-438E-8DAD-EC9B775CFF31";
    DateTime = "20140313120534.453000+000";
    ProcessID = 4540;
    ResourceName = "S-1-5-21-2105027866-1443240842-1445603992-41557";
    ResourceType = "User";
    ThreadID = 29760;
};
    PolicyAgent_RequestAssignments    3/13/2014 7:05:34 AM    29760 (0x7440)
Processing User assignments from 'SMS:PS1'. The new cookie is '2014-01-03 23:20:23.607'.    PolicyAgent_ReplyAssignments    3/13/2014 7:05:34 AM    32780 (0x800C)
Raising event:
instance of CCM_PolicyAgent_AssignmentsReceived
{
    AuthorityName = "SMS:PS1";
    ClientID = "GUID:DB86590F-CFA0-438E-8DAD-EC9B775CFF31";
    DateTime = "20140313120534.640000+000";
    ProcessID = 4540;
    ReplyType = "Delta";
    ResourceName = "S-1-5-21-2105027866-1443240842-1445603992-41557";
    ResourceType = "User";
    ThreadID = 32780;
};
    PolicyAgent_ReplyAssignments    3/13/2014 7:05:34 AM    32780 (0x800C)
Received User delta policy update with 0 assignments    PolicyAgent_ReplyAssignments    3/13/2014 7:05:34 AM    32780 (0x800C)
User 'S-1-5-21-2105027866-1443240842-1445603992-41557' is member of 23 Domain Security Groups    PolicyAgent_ReplyAssignments    3/13/2014 7:05:34 AM    32780 (0x800C)
Requesting User policy assignments for 'S-1-5-21-2105027866-1443240842-1445603992-4934'    PolicyAgent_RequestAssignments    3/13/2014 7:15:37 AM    36196 (0x8D64)
Requesting User policy from authority 'SMS:PS1'    PolicyAgent_RequestAssignments    3/13/2014 7:15:37 AM    36196 (0x8D64)
Raising event:
instance of CCM_PolicyAgent_AssignmentsRequested
{
    AuthorityName = "SMS:PS1";
    ClientID = "GUID:DB86590F-CFA0-438E-8DAD-EC9B775CFF31";
    DateTime = "20140313121537.440000+000";
    ProcessID = 4540;
    ResourceName = "S-1-5-21-2105027866-1443240842-1445603992-4934";
    ResourceType = "User";
    ThreadID = 36196;
};
    PolicyAgent_RequestAssignments    3/13/2014 7:15:37 AM    36196 (0x8D64)
Processing User assignments from 'SMS:PS1'. The new cookie is '2014-01-03 23:20:10.090'.    PolicyAgent_ReplyAssignments    3/13/2014 7:15:37 AM    36684 (0x8F4C)
Raising event:
instance of CCM_PolicyAgent_AssignmentsReceived
{
    AuthorityName = "SMS:PS1";
    ClientID = "GUID:DB86590F-CFA0-438E-8DAD-EC9B775CFF31";
    DateTime = "20140313121537.565000+000";
    ProcessID = 4540;
    ReplyType = "Delta";
    ResourceName = "S-1-5-21-2105027866-1443240842-1445603992-4934";
    ResourceType = "User";
    ThreadID = 36684;
};
    PolicyAgent_ReplyAssignments    3/13/2014 7:15:37 AM    36684 (0x8F4C)
Received User delta policy update with 0 assignments    PolicyAgent_ReplyAssignments    3/13/2014 7:15:37 AM    36684 (0x8F4C)
User 'S-1-5-21-2105027866-1443240842-1445603992-4934' is member of 39 Domain Security Groups    PolicyAgent_ReplyAssignments    3/13/2014 7:15:37 AM    36684 (0x8F4C)
Requesting Machine policy assignments    PolicyAgent_RequestAssignments    3/13/2014 7:22:31 AM    33532 (0x82FC)
Requesting Machine policy from authority 'SMS:PS1'    PolicyAgent_RequestAssignments    3/13/2014 7:22:31 AM    33532 (0x82FC)
Raising event:
instance of CCM_PolicyAgent_AssignmentsRequested
{
    AuthorityName = "SMS:PS1";
    ClientID = "GUID:DB86590F-CFA0-438E-8DAD-EC9B775CFF31";
    DateTime = "20140313122231.277000+000";
    ProcessID = 4540;
    ResourceName = "CTXPUB004";
    ResourceType = "Machine";
    ThreadID = 33532;
};
    PolicyAgent_RequestAssignments    3/13/2014 7:22:31 AM    33532 (0x82FC)

Yes, I know this is an old post, but Im trying to clean them up. Did you solve this problem, if so what was the solution?

Since no one has answer this post, I recommend opening  a support case with Microsoft Customer Support Services (CSS) as they can work with you to solve this problem.