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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteTo investigate a YouTube stream that ended unexpectedly in Castr, open Stream Session History, select the date range, choose Show Details, then inspect Bitrate or Analytics. Use Show Metrics Between to examine the interruption window. Castr documents historical stream-health charts, not a raw event-log viewer that identifies YouTube’s exact termination reason.
Find the ended session and its health charts
- In the Castr dashboard, open Stream Session History.
- Select a date range that includes the interrupted broadcast and click Show Details for the session.
- Open Bitrate or Analytics to access the stream-health charts.
- Choose Show Metrics Between and narrow the view to the time shortly before and during the interruption.
- Compare the video bitrate, audio bitrate, and frame rate around that time. A sharp video-bitrate drop can point to a connection problem; dropped frames can point to encoder or connection strain. These patterns are clues, not proof of why YouTube ended the broadcast. Castr’s health-chart guide says health data is retained for 10 days; after that, the described chart view no longer has session information.
Work out which part of the stream failed
Use the chart window to compare three layers rather than treating one chart pattern as a definitive diagnosis: whether the feed arriving at Castr changed, what the encoder and network were doing at the interruption, and whether the YouTube destination or its live controls showed a problem.
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Check the incoming feed and encoder
Look for a change in video bitrate, audio bitrate, or frame rate near the end. Castr’s March 2026 troubleshooting guidance recommends H.264 video, AAC audio, constant bitrate (CBR), and a 2-second keyframe interval. Its suggested video ranges are 3,500–6,500 Kbps for 1080p and 2,500–4,000 Kbps for 720p, with 128 Kbps stereo audio. These are Castr’s recommendations, not guarantees that a stream will remain connected.
Check network capacity and stability
Castr recommends upload capacity of at least 1.5 times the stream bitrate and favors wired Ethernet over Wi-Fi, which can introduce packet loss or latency spikes. For example, Castr’s guidance implies at least 7,500 Kbps (7.5 Mbps) of upload capacity for a 5,000 Kbps stream. A Cat6 Ethernet cable is one practical way to make a wired connection if your equipment supports it; changing cables cannot fix an encoder or destination-side fault.
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Check the YouTube destination
Compare the interruption time with the status and messages in YouTube Live Control Room. Verify that the destination URL and stream key are the intended ones and that any destination-side action needed to start the broadcast was completed. Castr’s YouTube connection guidance describes removing and reconnecting the YouTube destination and generating a fresh key if the existing key does not work. That guidance dates to 2022, so current dashboard labels may differ; check the live settings shown in your accounts rather than relying on an old label.
Test the route before the next important broadcast
Castr recommends testing with a private or unlisted YouTube stream and checking Analytics > Input Health to see whether the feed reaching Castr is healthy. This helps examine the incoming-feed side of the route; it does not, by itself, establish why YouTube ended a previous broadcast. Castr’s test-workflow guidance is from 2022, and labels may have changed.
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If the charts do not explain the interruption
- Compare the Castr input-health and stream-health time windows with YouTube Live Control Room’s status and messages.
- Save screenshots of the relevant charts and note the session date and approximate interruption time.
- Contact Castr support with those details if the cause remains unclear.
Castr’s published guidance does not establish that its charts reveal YouTube’s exact reason for ending a stream, nor does it document a separate raw event log that supplies that reason. Do not infer a definitive YouTube decision from a bitrate dip or dropped frames alone.
Set up alerts for future interruptions
Castr’s July 2026 alert guidance says SMS stream-down alerts are available on Premium or higher plans, with a maximum of 20 alerts per month and one configured phone number per account. Check your current account plan and alert settings before relying on this availability or limit.
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