Hi Herbert Zlotogorski,
Thank you for posting to the Community. As per your request I took a look at your issue. With this I have provided the support article listing all the M1 errors and their resolutions. Please locate the error (P-16) in the list and follow the steps provided.
Hope this helps,
Sling Media Moderation Team
Not very helpful as it appears to be a problem only with the Slingplayer desktop. The iPhone & iPad versions do not experience this issue on the same M1 Box. Also, you did not address the second issue raised with the network/bandwith bars not showing up 100% of the time.
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