Streaming is not always available. It 10 minutes works, and 10 minutes not. I suspected the network card since it has a known problem with the version of Ubuntu that I use. So I changed the network card but the problem remained. Only after that I found in the router log files records of DoS attacks. Router recognizes the problems, but it not stopping them. Should I solve the problem on the router or the Wowza server? I have read a dozen of posts on the forum but I have not found similar problems. I do not know anything about security and none of my colleagues know about DoS attacks and how to solve them.
Firewall [ICMP]: Drop Incoming 184.108.40.206->212.x.x.x
DOS [UDP]: Attack Incoming 220.127.116.11->212.x.x.x [UDP Flood]
and before I had and this one:
DOS [UDP]: Attack Incoming 18.104.22.168->212.x.x.x [UDP Echo Chargen]