Home | Site Map | Cisco How ToNet How To | Wireless |Search | Forums | Services | Donations | Careers | About Us | Contact Us|

Can't connect via RDP with event ID 26

RRAS, VPN, TS/RDP, Routing and remote Access.

Can't connect via RDP with event ID 26

Postby guest » Fri Jul 25, 2008 3:38 pm

Fred
Thank you very much for your help. I was not able to rollback the display
driver however there was a newer version in windows update which I installed
and that fixed the problem.

regards.

Heinz

""Fred Zhou [MSFT]"" wrote:

> Dear Heinz,
>
> Thank you for posting here. My name is Fred and I am glad to be working
> with you on this issue.
>
> From the problem description of the post you submitted, my understanding
> is: On one of the workstations, you cannot connect via RDP. This issue
> persists after disabling the firewall, checking the DNS and WINS settings
> on the DC and the local TCPv4 setting. Also, you found the following event
> log entries:
>
> ****************************************
>
> Event Type: Information
> Event Source: Application Popup
> Event Category: None
> Event ID: 26
> Date: 6/5/2008
> Time: 7:44:05 PM
> User: N/A
> Computer: WS-GCRICKMORE
> Description:
> Application popup: : \SystemRoot\System32\RDPDD.dll failed to load
>
> For more information, see Help and Support Center at
> http://go.microsoft.com/fwlink/events.asp.
> Data:
> 0000: 00 00 00 00 02 00 6c 00 ......l.
> 0008: 00 00 00 00 1a 00 00 40 .......@
> 0010: 17 00 00 c0 6c 02 00 c0 ...?€l..?€
> 0018: 00 00 00 00 00 00 00 00 ........
> 0020: 00 00 00 00 00 00 00 00 ........
>
>
> Event Type: Warning
> Event Source: WinDefend
> Event Category: None
> Event ID: 3004
> Date: 6/5/2008
> Time: 2:56:22 PM
> User: N/A
> Computer: WS-GCRICKMORE
> Description:
> Windows Defender Real-Time Protection agent has detected changes. Microsoft
> recommends you analyze the software that made these changes for potential
> risks. You can use information about how these programs operate to choose
> whether to allow them to run or remove them from your computer. Allow
> changes only if you trust the program or the software publisher. Windows
> Defender can't undo changes that you allow.
> For more information please see the following:
> http://go.microsoft.com/fwlink/?linkid=74409
> Scan ID: {E9F56C26-A057-4745-9A3B-4491EF29CAE0}
> User: HTLN\gcrickmore
> Name: Unknown
> ID:
> Severity: Not Yet Classified
> Category: Not Yet Classified
> Path Found:
> firewallport:HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\
> FirewallPolicy\StandardProfile\GloballyOpenPorts\List\\3389:TCP
> Alert Type: Unclassified software
> Detection Type:
>
> For more information, see Help and Support Center at
> http://go.microsoft.com/fwlink/events.asp.
>
> ****************************************
>
> If I have misunderstood about your concern, please feel free to let me know.
>
> The RDPDD.dll is used by Remote Desktop. If it fails to load, the Remote
> Desktop display driver won't load on the host machine. This issue can be
> caused by ATI driver or corrupt/missing system files.
>
> Based on the current situation, we can perform the following steps to
> troubleshoot the issue.
>
> Note: Please check the issue after finishing one step. If the step did not
> resolve the issue, please try the rest steps.
>
> Step 1: Reduce Display Hardware Acceleration:
> ===============
> 1. Click "Start", go to "Run", type in "DESK.CPL" and press "Enter".
> 2. Click the "Settings" tab, click "Advanced", and then click the
> "Troubleshoot" tab.
> 3. Move the Hardware Acceleration slider to "None", and then click to clear
> the "Enable Write Combining" check box.
> 4. Click "OK", and then click "OK" again.
>
> Step 2: Roll back the display card driver:
> ===========
> 1. Click "Start", go to "Run", type in "devmgmt.msc" and press "Enter".
> 2. Double click to expand "Display Adapters".
> 3. Right click your display card and click "Properties".
> 4. Click the "Driver" tab and click "Roll Back Driver".
> 5. Restart the computer and check the results.
>
> Step 3: SFC
> =======
> I suggest you use the System File Checker. The System File Checker tool
> gives an administrator the ability to scan all protected files to verify
> their versions. To do so, follow these steps:
>
> 1. Put the Windows XP CD to the CD-ROM.
> 2. Click "Exit" if the auto-menu pops up.
> 3. Click "Start", and click "Run".
> 4. Type "SFC /Scannow" (without quotation marks) in the "Open" box, and
> click "OK".
>
> Note: There is a space between "SFC" and "/Scannow".
>
> For more information, please refer to this article:
>
> Title: Description of Windows XP and Windows Server 2003 System File
> Checker (Sfc.exe)
> Link: http://support.microsoft.com/default.as ... -US;310747
>
> Step 4: System Restore
> ===============
> I suggest we perform a System Restore to back up the system to a state
> before this issue occurred.
>
> Note: If you have some important documents or files which were created
> after the restore point, please copy them to My Documents. By doing this,
> even if you back the system up to the initial status, the documents will be
> saved in My Documents.
>
> To restore your system to a previous state, we can use the following steps:
>
> 1. Before you start, please close all open files and close all open
> programs.
> 2. Click "Start"; click "Programs or All Programs"; click "Accessories";
> click "System Tools"; and click "System Restore". The System Restore user
> interface should appear.
> 3. Select "Restore my computer to an earlier time" and click "Next".
> 4. From the restore points available, select an appropriate restore point
> when your system was working correctly and click "Next".
>
> Note: Please select a restore point created prior to updating the nVidia
> drivers
>
> 5. Click "Next" again. The restore process will run and your system will
> restart automatically.
> 6. After restarting, check whether your system functions correctly now. If
> not, you can undo your last restoration or select another restore point in
> the System Restore user interface.
>
> For more information, please refer to the following Microsoft Knowledge
> Base article:
>
> Title: Restore the Operating System to a Previous State in Windows XP
> Link: http://support.microsoft.com/default.as ... -US;306084
>
> If this issue persists after performing the four steps above, please help
> me collect the NETWORK MPS Report again for further research.
Tablet and Smartphone Setup Guide
http://www.quicksetupguide.com

Troubleshooting Vista Wireless
http://chicagotech.net/
guest
 
Posts: 10191
Joined: Mon Nov 27, 2006 1:10 pm

Postby guest » Fri Jul 25, 2008 3:40 pm

ARCR
***********
A (Action): Use RDP

R (Result): On one of the workstations, cannot connect via RDP.

C (Cause): RDPDD.dll failed to load

R (Resolution): Update the display card driver

If you have any other questions or issues, please feel free to let me know.
It is always my pleasure to be of assistance.
Tablet and Smartphone Setup Guide
http://www.quicksetupguide.com

Troubleshooting Vista Wireless
http://chicagotech.net/
guest
 
Posts: 10191
Joined: Mon Nov 27, 2006 1:10 pm


Return to VPN, TS and Remote Access

Your Ad Here

Who is online

Users browsing this forum: Google [Bot] and 2 guests