No signal

Hello
Why is there no signal?

http://c.top4top.net/p_173wtkw1.png


Before the days of no signal 4 Towers
Because does not have a

Sorry I don't know speak English so much

Explain the problem
The day before was here four signal net non-existent
Please explain how taking out the signal again

So I can with internet access

The main tower does not have a problem working
But my own device does not function and there is no signal

Please explain to resolve the problem and show reference

Hello,

Please verify if the SM has specific frequencies selected under Configuration->Radio, as shown below. If so, make sure they include the AP operating frequency. If unsure about the AP frequency, try unselecting all the frequencies to force the SM to scan the complete band.

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