Net TV server not longer accessible for 40PFL9715K/02

[dk8pn]

Looks like 9715 TV set can't access the Net TV server since minimum a week ago or even a bit longer? Know 3 independent 9715 (one at my TV dealers home) which are affected and where it worked fine before. Message is "Philips server not found, try again later". Unfortunately this also affects interactive services (red button) as well as network EPG. Software is Q5551_0.9.22.0 on all.

Tried all hints which Philips offers in the internet, no success so far. My 32PFL7406K/02 has access using exactly the same home network connection. This shows that my Net TV setup like all my apps, internet favorites etc. defined on my 9715 are still available on the Net TV server.

Home network: PC file access, streaming/projection from PC to TV works fine as well as iPhone remote control and slide show.

Sent all information to Philips more than a week ago but don't get help. They only proposed to exchange the network adapter (hardware service). But don't believe that the same piece of hardware died within 3 independent 9715 at the same time. And the network functionality within the home network seems to be perfect.

My impression is that Philips has a selective server problem with 9715 ? Can anybody help me ?