Some users have noticed blurry live streams on their Nest cameras and doorbells when using the Google Home app since mid-June. The recorded videos are not affected, staying clear and maintaining quality. This issue does not seem to be related to internet speeds and appears to be affecting Nest Doorbell owners the most. Google has acknowledged the problem and is actively working on a fix that will be rolled out soon. The company is committed to resolving this issue and ensuring that users can enjoy clear live streams on their Nest devices.
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https://9to5google.com/2024/06/27/nest-cam-doorbell-blurry/