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Server not available WinCC v7.4

Created by: AutoGen_8925449 at: 4/25/2025 1:29 PM (4 Replies)

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4/25/2025 1:29 PM	Rate (0)
AutoGen_8925449 Joined: 2/19/2025 Last visit: 6/25/2025 Posts: 4 Rating: (0)	Hello everyone, I have a problem. I need to open a project on WinCCExplorer 7.4 except that every time I try to open it, I get the following message: WinCC Explorer - Server not available Server not accessible I'm working from a Windows 7 VM so I don't know how to set Windows Update if that's the solution. Thank you in advance for your help.

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4/25/2025 2:48 PM	Rate (0)
Hank88 Joined: 7/10/2024 Last visit: 8/22/2025 Posts: 180 Rating: (23)	Hello! I suggest you review this FAQ. I hope it helps. - What do you do if you receive the error message "Server not available. Cannot connect to server" when opening WinCC Explorer on the OS server?
	If you found this post helpul, I'd greatly appreciate your feedback with the rate function
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This contribution was helpful to 2 thankful Users AutoGen_8925449 Murof

5/2/2025 11:09 AM	Rate (0)
Murof Platinum Expert Joined: 8/3/2009 Last visit: 9/5/2025 Posts: 16349 Rating: (1932)	Hello AutoGen_8925449 If you still have got problems you should install the latest Update for your WinCC Version and check also if you can create a new project Check also the compatibility with the OS you are using: https://support.industry.siemens.com/cs/de/en/view/64847781 Bye Murof
	If this Information really helps, you could use the Rate function
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5/5/2025 6:21 AM	Rate (0)
AutoGen_8925449 Joined: 2/19/2025 Last visit: 6/25/2025 Posts: 4 Rating: (0)	Hi Murof, I can create a project from this Windows 7 VM. Except that when I want to open this client project, I get the error message. I've installed the latest WinCC 7.4 update, but nothing works. Thank you in advance for your reply.

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5/7/2025 12:57 PM	Rate (0)
Murof Platinum Expert Joined: 8/3/2009 Last visit: 9/5/2025 Posts: 16349 Rating: (1932)	Hello you can try to reset some basic data and check if the project then opens: (But make a backup of the project first ) https://support.industry.siemens.com/cs/de/en/view/109763043 https://support.industry.siemens.com/cs/ww/en/view/109779249 Bye Murof
	If this Information really helps, you could use the Rate function
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