Active Sync Support Code 85020006 after Windows Mobile 6 Upgrade

1) I deleted the partnership and added it back on - still received the error. I even tried to connect the device to another computer and still received the error eventhough when another device is connected to the same computer it works so it cannot be any setting on the PC.
2) There are no updates on the HTC site that I have not implemented.
3) I tried every solution on the long thread, although I was hopeful and had a lot to try.
4) Each one of these was tried under Automatic and Internet Connection settings on the PC's active sync
5) Here are my results:

Suggested in the long thread, but did not work:
A) Disconnect phone
B) Turn on Flight Mode
C) Connect Phone
D) Sync = error
E) Turn off flight mode
F) Sync = error

Suggested in the long thread, but did not work:
A) Connect phone w/USB
B) Turn on WiFi (it says in the posts that Wifi will turn on and then off again, that did not happen to me. It found a network and I had to ignore connecting to it)
C) Sync = error

Suggested in the long thread, but did not work:
A) Connect phone w/USB
B) Turn Bluetooth off
C) Turned Direct Push off
D) Turned Wifi off
E) Turned flight mode on
F) Turned flight mode off
G) Disconnect from USB
H) Turn flight mode on
I) Connect w/USB
J) Turn WiFi on (ignore connection)
K) Sync = error
L) Turn phone on, sync, error
M) Wifi off, sync, error

Suggested in the long thread, but did not work:
A) Disconnect Device
B) In Task Manager on the PC, End Process in this order: rapimgr.exe, wcescomm.exe
C) Connect Device
D) Did not connect
E) Disconnect Device, checked for rapimgr (not there) and stopped the Active Sync in running programs on the device.
F) Connect Device
G) Would not connect
H) Used Resync program to shutdown Active Sync and restart
I) Device Connected, sync = error

I have no proxy server settings. Any suggestions in the thread on this were skipped.

I have no Certificates. Any suggestions in the thread on this were skipped.

Now I could have easily misinterpreted the suggestions in the giant thread posted above because none of the suggestions were very clear (do you have the device connected when you do these things, where do you go to turn on and off these things). That is why I documented above exactly what I did and where I did it from so if someone can see that I did the steps in the wrong order or with the device connected/disconnected when it should have been disconnected/connected, or from the wrong place please let me know.

Make sure  "Allow wireless connection on device when connected to the desktop" is not enabled in Activesync "Connections setting"for the WIFI on trick.

It seems to be the most popular of them.

Another one I'd suggest is to delete you GPRS connection profile and recreate it with the same settings.

Active Sync does not work at all on my device when I have "Allow wireless connection on device when connected to the desktop" checked, so that is the first thing I have to uncheck in order to setup any of my devices.

I do not have something called GPRS connection profile.

Do your phones have a data plan thru AT&T? That is the connection profile I'm referring to... Media Net...

It sounds like the problem may be on the PC itself. What firewall are you computers using. Ensure that
    * Wcesmgr.exe * Wcescomm.exe * Rapimgr.exe  *  are all part of the exception list. These files are located at C:\Program Files\Microsoft ActiveSync\ with the default install.

ActiveSync also uses the following ports for communication to/from these processes:

Inbound TCP:

    *      990
    *      999
    *      5678
    *      5721
    *      26675

Outbound UDP:
      
    *      5679

Lastly, you may try reinstalling both ActiveSync & Outlook on the problem PC's

It cannot be the computer as I set up the device on a computer that has a working device (my own). The device still did not work.

When I have the time to call AT&T technical support after deleting the profile and not getting all the settings back so that it completely stops working I will try deleting the media net profile.

I think deleting media net doesn't truly delete it. When you soft reset it should come back. I have verizon though so take this comment with a grain of salt.

Well, I deleted the MEdia Net setup and then when I went to put it back I discovered that there is a password that I need to enter so now I'm toast with all internet connections on the phone.

Anyone know the AT&T MEdia Net password?

I am looking for the password for the WAP@CINGULARGPRS.COM email that is in the MEdia Net settings (3rd screen into the MEdia Net settings after clicking Start > Settings > Connections > Manage Existing Connections > MEdia Net > Edit)

its the same password, you'll need to reset it if you cannot remember it.

You may also want to try this advice from Alan Tetley [MSFT]

ActiveSync version 4.2 made a change to how it interacts with the Windows networking stack to use Layered Service Providers (LSPs) on outgoing Desktop-Pass-Through connections.  This allows for improved compatibility & policy compliance in environments where connections to the internet must be passed through these LSPs (ISA Proxy is one such example).  

Unfortunately, it appears this change has caused some issues for a small segment of users who have LSPs that interfere with ActiveSync communication.

There is a registry key which can be created to essentially remove this change & revert to ActiveSync 4.1 behaviour.  This key is:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows CE Services]
"AllowLSP"=dword:0

This posting is provided "AS IS" with no warranties, and confers no rights.