Zyxel Keenetic Giga II DLNA & Xbox360 - what could be the problem?

Question

DLNA

We have
1) Zyxel Keenetic Giga II with a screw connected
2) Xbox 360
On the router, via DLNA, fumbles media content on the network The set-top box
and other devices receive it
Hurrah.
Other devices normally find and play music.
I disconnected the screw from the router, connected it to a laptop with Linux on board, and through minidlna of the same version as on the router broadcast it to the network, the set-top box reproduced everything perfectly