An example
“Friday at 20:15 Europe/London. The same live station froze three times in ten minutes on the living-room player. Another station played for ten minutes. I retried the first over Ethernet with the same app, and it still froze.” That gives a helper a feed, time and comparison.
When the symptom changes
Separate a second symptom into its own note. If playback works but the guide is shifted, record the programme and expected start time. If sign-in fails before the player loads a list, share the error label and input type. Test one change, then add the outcome to the same thread.