Please RE-INSERT the DISHTV Viewing Card(VC) in your Set-Top-Box.
You are advised to NOT REMOVE the VC from your Set-Top-Box.
If problem continues, SMS DISHTV 401 to 57575, from your Registered Mobile Number(RMN). To Registered Mobile Number, SMS DISHTV RMN <11 Digit VC No.>to 57575.