Apple TV WiFi issue err code 100/3900

Has anyone met WiFi issue with err code 100 or 3900 and able to fix or work around? It happen after running same setting 2-3 yrs and suddenly Apple TV stop connecting to my router

Posted on Aug 18, 2019 2:21 AM

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3 replies

Aug 18, 2019 5:22 AM in response to Shuweishen

Have you tried restarting both the router and Apple TV.

Have you introduced any other equipment, either directly onto the network or in proximity to it that might result in interference.

Shuweishen Author

Level 1

10 points

Aug 18, 2019 10:34 PM in response to Winston Churchill

Yes, I have restarted and factory rest for both ATV and router.

There is no any new device connected to the router.

Aug 19, 2019 8:05 AM in response to Shuweishen

New devices don't necessarily need to connect to the network to cause a problem, they often just need locating in the same room or vicinity.

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Apple TV WiFi issue err code 100/3900

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