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WinCC Professional Runtime error - Application CCSystemDiagnosticHost.exe could not establish a connection to the WinCC License Server

Created by: AutoGen_3025202 at: 2/14/2023 9:04 PM (4 Replies)

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2/14/2023 9:04 PM	Rate (0)
AutoGen_3025202 Joined: 9/7/2022 Last visit: 5/9/2024 Posts: 3 Rating: (0)	Hi Gents, I have a TIA Portal version 17 instaled on my laptop and trying to Run WinCC Professional. It is getting stuck in the middle of the runtime simulation. The error image has been attached. Thanks Attachment abc.JPG (795 Downloads)

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2/14/2023 9:27 PM	Rate (0)
itafusna Silver Expert Joined: 2/17/2020 Last visit: 4/28/2025 Posts: 1251 Rating: (236)	Hi, Did you change the name of the PC after the installation of WinCC Professional by any chance? Does it happen with all projects or is it something specific to this one? I recommend you create a new project and try to simulate it, just in case.
	A rating will be well appreciated.
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2/16/2023 12:18 PM	Rate (0)
Murof Platinum Expert Joined: 8/3/2009 Last visit: 4/28/2025 Posts: 15368 Rating: (1895)	Hello run Reset_WinCC.vbs in teh bin folder of the Runtime installation path and wait until the done window. Then do a restart and try again. Do you use the latest Update for your TIA Version ? If it appear in every project then a repairinstallation would also be an option Bye Murof
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This contribution was helpful to 1 thankful Users 9638

10/24/2024 5:34 AM	Rate (0)
pradeep_soni_geck Joined: 9/12/2024 Last visit: 3/10/2025 Posts: 1 Rating: (0)	It is not helpful. would you please suggest any way? Attachment wincc ccsystem dignostic host could not establish.PNG (169 Downloads)

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10/24/2024 9:54 AM	Rate (0)
Murof Platinum Expert Joined: 8/3/2009 Last visit: 4/28/2025 Posts: 15368 Rating: (1895)	Hello I had today a similar issue. The reset does not help. I installed SQL Server management Studio and connect to the WInCC SQL Server instance. Then I could see in the connected databases that there are some attached WinCC databases (I had closed everything already) -> after detaching the connections everything works again. There is a FAQ for WinCC with this issue, -< its the same system as in WinCC Professional perhaps it helps: https://support.industry.siemens.com/cs/de/en/view/109818900 Bye Murof
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This contribution was helpful to 2 thankful Users Moderator_Lan itafusna

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