Version 8.1.2 from your link worked!
But I found another problem (as well as in v8.0.3 as in v8.1.2):
Twonky is only available from the LAN-Internface.
The WLAN-Interface is not shown in Twonky Webconfig under "Status" -> "Networkinterfaces".
So i can not use Twonky via wlan.
On my Qnap-NAS i've Twonky v8.1.2 installed too. Here are all interfaces shown in the status page.
