If you are on a 5GHz band, switch to 2.4GHz. It is more stable for the older protocols UCast often uses.

Optimize network performance by reducing congestion and ensuring sufficient bandwidth for multicast traffic. Consider implementing Quality of Service (QoS) policies to prioritize multicast traffic.

payload = raw[self.HEADER_SIZE:]

You cannot fix V461 without understanding its root causes. Based on Ucast firmware logic and user reports from the field, here are the top 5 reasons: