Hy @martin-kudláček,

Thanks for the reply!

Today I tried again to connect with ".../json/all" and it works.

The only difference compared to my first post is that I restarted the UniPi couple of times whereas at the time of my first post the UniPi was online since weeks.

We are using UniPi Neuron L503 (S/N: 215) with Neuron xS40
Evok PrecedingRelease:v.2.0.7h PrecedingRevision:379

I installed Evok manually

Thanks and greetings
Helmut