Dear Experts,

I have a PCS7 V9sp1 configuration with a redundant setting. In some rare cases an OS-Server disables the network card within the Windows environment. I have learned that this is a kind of defense meganism to maintain the availability of the system, great, I like this feature.

In my configuration I have only one network card configured. Better is to configure 3 network cards (Plantbus, TerminalBus and redundancyBus). So....

Now my question is: If I change my configuration to 3 network cards and this “defense meganism” will occur, wich network card(s) is(are) disabled?

Thanks in advance,

Jaap

 Hi Jaapie,

which windows do you use ?

If you use Win 2016 this could be useful:

https://docs.microsoft.com/en-us/windows-server/networking/technologies/network-load-balancing

Cheers

Techno

Hello,

Is there more information on this? I was told this was also written in a manual somewhere but I can't find it. 

Thanks!

Yes you can re-enable it but what I heard is that a problem on redundancy card will disable all network cards (Terminal - Plant and redundancy).

We have a redundant server but the problem is that there is no redundancy as long as the network cards are disabled. After that an engineer has to come by to restart the PC.

When the OS Server is virtual you'll have a bit more work to go restart the PC in the virtual environment. 

This is exactly why we don't use the redundancy bus only our client wants to see this written somewhere by Siemens. I was told we had found it in a manual a year ago but we can't seem to find it again.

I think I understand it wrongly. You mean your network adapter will be disabled automatically during an unexpected situation, right? Then, you will get a popped out message saying "A restart is required"? 

This kind of messages, normally it is due to a problem happened to the station configurator editor. IP address conflict, Card faulty, configuration issue might cause this kind of problem. 

I am having 3 sets redundant OS with win 2016 installed as well. Microsoft Window Server Version 1607 (OS build 14393.1884), updated with all the siemens approved patches. May be you could take a look? 

Jaapie

Dear Experts,

I have a PCS7 V9sp1 configuration with a redundant setting. In some rare cases an OS-Server disables the network card within the Windows environment. I have learned that this is a kind of defense meganism to maintain the availability of the system, great, I like this feature.

In my configuration I have only one network card configured. Better is to configure 3 network cards (Plantbus, TerminalBus and redundancyBus). So....

Now my question is: If I change my configuration to 3 network cards and this “defense meganism” will occur, wich network card(s) is(are) disabled?

Thanks in advance,

Jaap

 Hi, did you found any solution to avoid for network card auto disabled issue?