Sat Apr 06, 2013 3:20 pm by matty
After hours of trying to find the solution i decide to take a break and try it again next day.
it really helps. i found out that there are two devices with the same ip in the devicelist. the tv and an unknown device, after deleting the unknown it works correctly.
to find out where the unknow device came from i test several things. finally i found out that this unknown device appears in the list if i plug off the power supply of the tv and put it back on again.
so in normal usage it shouldn't happen and every time i plug off the power supply i have to delete it again.
iam not an expert so i cant say if this problem is created by the tv hardware or softwareside.
maybe this information will help you for future software updates.