Hello Hans. I did not have the firmware 000.140.046 so i tried the version 045 which i had. But that didn't work. After contacting Philips they explained the problem and asked me to go back to version 034. Which I could download now from the internet. After installing version 034 NetTV was available again and still working after upgrading to 048. So problem solved and you did point in the right direction. Thanks for your reply.