Samsung UN55FH6200FXZA - Manual (Page 153)

Internet status.
If the wireless network connection failed...
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Wireless network connection failed.
No wireless router selected. Go to
Network Settings to select your router.
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Unable to connect to wireless router.
Try the following: check if the router
is turned on, and if it is, try turning it
off and on again. Check if you need to
enter a security key to use the router.
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IP auto setting failed.