: Reset temporary HMI files in the project to clear any cached errors. 4. Fix "No Connection to Server" Errors
If you work with WinCC V7.x Classic (non‑TIA):
Ensure both the server and client are in the same Simatic Shell group. Open "Simatic Shell" in Windows Explorer, right-click "Settings," and ensure the correct network adapter is selected and that the "Multicast" settings match.
If you tell me (e.g., screenshot text) and which WinCC version (e.g., TIA Portal V17, WinCC 7.5 SP2), I can give you a precise fix.
: Reset temporary HMI files in the project to clear any cached errors. 4. Fix "No Connection to Server" Errors
If you work with WinCC V7.x Classic (non‑TIA):
Ensure both the server and client are in the same Simatic Shell group. Open "Simatic Shell" in Windows Explorer, right-click "Settings," and ensure the correct network adapter is selected and that the "Multicast" settings match.
If you tell me (e.g., screenshot text) and which WinCC version (e.g., TIA Portal V17, WinCC 7.5 SP2), I can give you a precise fix.
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