Hi, I keep seeing that packets are being dropped every few days from a yealink phone. The phone has made calls, and I don't see dropped packets in my logs during most of the successful call. FS is on a public IP, the phone is behind nat.

I don't know if this is actually a problem, but I'm concerned about this error message because I don't know what it is. Is iptables rate-limiting something..?

Situataion, kern.log error, iptables/ufw list:

Thanks!