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Hello, is the little cross next to another symbol? Like a WiFi symbol or a 'radar' type of symbol?If it's next to a WiFi symbol then the the T6 has lost communication on its WiFi interface. It might be a device failure, but sometimes a power cycle with a gap in the middle, say 10 minutes, is enough to reset it.
Has there been any change to your home WiFi network? A new router perhaps?
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