Simatic HMI keeps disconnecting

Hello, 

Im trying to view tags from S7-1200 on Basic 7' HMI. However when I start runtime, the HMI immediately disconnects from the PLC (see the picture below). Everything else works fine, the IP adressed are correct, TIA portal 17 shows no errors, I can even go online with both devices. The PLC and HMI are connected both in network and topology view. The project is unprotected so there shouldn't be any permission issues. What could be the problem?  Any Help will be appriciated.

Thanks in advance, Martin

Hello,

Perhaps this link might help:

In WinCC (TIA Portal), how do you configure a connection between WinCC Runtime Advanced or HMI Panel and an S7 controller over Industrial Ethernet (PROFINET)?

Best regards,

Wizard