AVS Forum Addicted Member
Join Date: May 2004
Location: Bull Mountain, OR
Mentioned: 28 Post(s)
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The most reliable connection is a single cable run, source to sink, with no wall plates, adapters, extenders in-between. The CAT-rated cable used should have been solid core CAT-6 (non-CCA and not CAT-6 pre-terminated ethernet patch cable). Anytime you introduce a "break" in the cable chain you can introduce errors. ARC is susceptible to distance so you need to ensure that your cabling is a simple as possible and that the cable can handle ARC.
The AVR also needs to be setup for ARC and you need to make sure that you are using the ARC-defined HDMI input/output.
I never trust an atom, they make up everything.