Check your logs.
Also system events
What should I do with those Ports. So it must be something else what is crashing server. How can I check it?Try checking which application is using those ports, you can do it in task manager (ctrl shift esc)
Those won't crash your server tho
Event Viewer is your friend here.What should I do with those Ports. So it must be something else what is crashing server. How can I check it?