❗ UPDATE: My SonicWall crashed again yesterday and I think I’ve managed to fix it this time.
I think what was happening is that the CPU on the SonicWall was overutilized and the SonicWall was becoming completely unresponsive. I think this was due to the Gateway Anti-Virus scanning incoming packets from the internet as usage (or hack attempts) increased throughout the day.
To fix this, I turned off outgoing HTTP scanning, and scanning of both outgoing and incomming TCP streams. My SonicWall has not crashed since making this change. Fingers crossed 🙂
If I don’t update this thread after today, you can assume that this fixed it!