After some testing, it sure seems like if your Zello Wi-Fi connection is NOT good/weak/slow!! It may result in the com port communication being unstable and the following may happen:
1). Cutting off/dropping conversation from zello (PC to radio) and (radio to PC) !!
2). Delay in RX/TX conversation.
To fix this you will need a faster WI-FI speed or if possible uses a CAT5 network cable and not uses WI-FI
YouTube video about this https://youtu.be/tD3zJz7vvVQ
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