Question : ActiveSync will not provision devices, even when it is configured to allow non provisonable devices

I cannot add an iPhone that was already syncing correctly.Receive the following from the mobile device logs:

RequestTime :
12/18/2009 10:32:47

ServerName :
SRV3

AssemblyVersion :
08.01.0393.001

Identifier :
320F1693

RequestHeader :
POST /Microsoft-Server-ActiveSync/default.eas?User=rgeissler&DeviceId=Appl5K92865xxx&DeviceType=iPhone&Cmd=FolderSync
Connection: keep-alive
Content-Length: 13
Content-Type: application/vnd.ms-sync.wbxml
Accept: */*
Accept-Encoding: gzip, deflate
Accept-Language: en-us
Authorization: ********
Host: mail.ne-obgyn.com
User-Agent: Apple-iPhone/704.11
Ms-Asprotocolversion: 12.1
X-Ms-Policykey: 0

RequestBody :


0


ResponseHeader :
HTTP/1.1 449 Retry after sending a PROVISION command
MS-Server-ActiveSync: 8.1

ResponseBody :
[No XmlResponse]

ResponseTime :
12/18/2009 10:32:47

This is in the iis logs:

2009-12-18 14:50:42 192.168.100.246 POST /Microsoft-Server-ActiveSync/default.eas User=User&DeviceId=Appl5K92865WY7H&DeviceType=iPhone&Cmd=FolderSync&Log=V121_LdapC0_LdapL0_RpcC11_RpcL31_Ers1_Pk0_Error:DeviceNotProvisioned_ 443 domain\user 166.205.10.131 Apple-iPhone/704.11 449 19 13 202

I have reoved the device, re-added, and I can see it in Exchange, it simply won't sync.

has anybody seen this issue before?

Thanks,
Rob

Answer : ActiveSync will not provision devices, even when it is configured to allow non provisonable devices

Change the timeout setting on your HTTPS policy in your firewall.

Also increase the settings for HbiSampleSize and MaxHeartbeatInterval (both DWORD values, you may need to create them if they don't already exist) in HKLOCAL_Machine\System\CurrentControlset\Services\Massync\Parameters

read more about the registry settings and this issue in general here: http://support.microsoft.com/kb/905013