We have an NC1 input module connected through a tp-link switch to a TC1. Sometimes the associated audio for the NC1's video source does not come through to the TC1, even though the video does. In those circumstances unpluging the ethernet cable and plugging back it, relaunching the session, or changing configurations on the NC1 all may restore the audio. It seems to affect the NC1 audio regardless of whether the input is embedded or external. The NC1 and TC1 are the only two devices on the switch (which B&H recommended specifically for NDI). We've even bypassed the switch connecting the NC1 to the TC1 directly and the problem still persists. Newtek has sent us a replacement NC1, but that didn't fix the problem either. Has anyone seen anything like this before or have any ideas?