The VideoLAN Forums

My internet went down, I couldn't connect to my router. Swapped out the router, still had issues. When I started looking at packet counters, it turns out a PC was sending a SYN flood to 50.31.167.247. After closing most programs, I realized I couldn't close VLC out of the taskbar icons (the background icons off to the right of the taskbar, not the foregound tasks). Once I killed the process, it died, and the flood stopped. This IP seems to be linked to content I might have streamed (it seems NPR hosts out of that IP), but I'm not sure how long ago it was, or what got VLC into this state.

Make sure you did not enable HTTP reconnect. Playlist loop can also cause problem.

Regardless, if you keep the TCP timeout to a sane value, VLC cannot SYN flood. It does not have that low level access to network, the OS is responsible for pacing and retransmitting SYNs.