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Simatic Shell partners can’t see each other at boot

Created by: Alain-J at: 10/17/2022 7:35 PM (4 Replies)

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10/17/2022 7:35 PM	Rate (0)
Alain-J Regular Member Joined: 4/27/2015 Last visit: 1/26/2026 Posts: 2 Rating: (0)	Hi everybody, I’ve a problem with my WinCC V7.5 sp1 upd 9. Server can see client and client can see server from simatic shell. WinCC is interconnected and runtime is running fine on each other. But when I reboot the server or the client, each other can not be seen in Simatic Shell. In that case, I must uncheck and check again remote communication in Simatic Shell on server and client to see the two computers again. Computers are on the same subnet, lmhost configured. Some ideas ? Thanks !
	Last edited by: Alain-J at: 10/17/2022 19:37:14 Last edited by: Alain-J at: 10/17/2022 19:37:44
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10/18/2022 7:49 AM	Rate (1)
ElonksuM Experienced Expert Joined: 5/6/2022 Last visit: 1/22/2026 Posts: 589 Rating: (123)	Hi Alain-J! I have seen that you have already configured Imhost and it seems that you have everything set up correctly, but just in case, I recommend you to check the following FAQ where all the steps to enable it are explained: "What are the requirements for operating SIMATIC WinCC in a Windows network?" Also comment that it could be an RDP issue, by this I mean that you are not accessing via RDP or a remote access not released to the server because it would pull down the WinCC server services. Could you share screenshots of the OS versions of the two PCs. Also the exact software you are using (You should have the same software versions on all of them). Best regards!
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10/18/2022 12:47 PM	Rate (0)
Alain-J Regular Member Joined: 4/27/2015 Last visit: 1/26/2026 Posts: 2 Rating: (0)	Hi ElonksuM_SN_BN, Thanks for your reply. In this case, server is a virtual machine running with Windows Server 2019 64bits 10.0.17763.168. Client is a physical PC running with Windows 10 Pro 64bits 21H2 19044.1889. To work on server, I use RDP. But it works when I renew remote communication check box of Simatic Shell setings while I'm connected with RDP on server. WinCC Software is identical on two computers: WinCC V7.5 sp1 upd 9 Thank you for your help !

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10/18/2022 1:55 PM	Rate (0)
ElonksuM Experienced Expert Joined: 5/6/2022 Last visit: 1/22/2026 Posts: 589 Rating: (123)	Hi Alain-J, Here the problem that I think is happening is that, not being released, it gives problems with the services, which are not restored until the PC is completely restarted. Here in this FAQ it is commented: "How do you remotely access WinCC stations (WinCC V7 / RT Professional)?" Note from de FAQ: "The use of the Remote Desktop Protocol (RDP) is permitted exclusively for the remote maintenance of WinCC Clients. There must be no server services enabled on these computers (e.g. WebNavigator Server, DataMonitor Server or OPC Server)". Best regards.
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10/21/2022 11:04 AM	Rate (0)
Murof Platinum Expert Joined: 8/3/2009 Last visit: 1/23/2026 Posts: 16661 Rating: (1944)	Hello Alain you should check all Stations wich this FAQ: https://support.industry.siemens.com/cs/de/en/view/868014 -> Important also the lmhosts files! A trick is also you can use each other as Multicast Proxy in Simatic Shell. this shold not be necessary in a local LAN segment but I had also a constellation in the past that works only like this. Bye Murof
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