After 3 boxes 7490 had several problems (which is also the AVM Support could not clarify) - less transmission speed on the same line as the 7390 and massive wireless interference, was the above. Box connected.
Result: instead of 5.1 Mbit / s. meager 3.5 Mbit / s - on the same line.
Feher setting - not possible, because the settings of the FritzBox 7390 were exported and restored in 3390.
In addition, the silver cheek was painted right flawed from the LEDs - Box returned.
