JVC VN-T216VPRU Instructions Manual page 44

When enabled audio output to "ON", there are audio issue of the
sound is disconnected under a few part of Windows 7
environments.
In order to solve audio issue, we suggest to you change a driver
settings as follows.
1. Jumbo Frame
--> Set to "Disable"
2. Large Send Offload (IPv4)
--> Set to "Disable"
Caution
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