IP-Zugriffsfehler

[juma4]

Good Day

We have pulled up a redundant project from 3.11 to 3.15 Patch 26.
We have connected redundant Siemens S7 400 H controls to it. Now all connections are shown as connected on the active system. The active PLC is shown as connected on the inactive system, but the redundant PLC not. we do not use the standard port 102 but 103-106. The message in the LogViewer is an IP access error. Do you have a Idea what this could be?
Many thanks
Markus Junker

[leoknipp]

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Best Regards
Leopold Knipp
Senior Support Specialist