Siemens KNX Issue

[Michalis Tsimettas]

Dear Community,

I face a strange issue with some Siemens KNX Devices in my automation network . When i am connected with ethernet cable in automation network i can regonize siemens knx devices in my network and confiqure them via ETS(Siemens KNX Application) . The strange thing is when i am connected with my laptop in Wi-Fi(Again in automation Network) i can ping the Siemens KNX devices but i cant configure them with ETS application . I have a Cisco WLC 2504 Controler and my access point is AIR-CAP702W-E-K9 . I you have face something familiar with this , i will appriciate your help . 

[marce1000]

         >...i can ping the Siemens KNX devices but i cant configure them with ETS application 
                            - What happens then when you try ?

 M.

[Michalis Tsimettas]

Dear @marce1000 ,

ETS Application doesnt show me the KNX Routers and when i connect with LAN the ETS Application show me all the routers in automation Network.

[marce1000]

 - This becomes difficult to correlate to Cisco networking parameters ; you could for instance try to check logs from the ETS Application , to get insights ; if available , 

 M.

[Rich R]

My guess would be the application is using broadcast or multicast which is being blocked or filtered by the wireless network.

You need to get the communications requirements for the application from Siemens and then work from there.
if you don't have support from Siemens then get a packet capture of them on the LAN to see how they communicate.