SxBlue Receivers - EGNOS Correction Settings
Please ensure you have got appropriate PRN settings for your SBAS corrections. In Europe the proper PRN settings for EGNOS are: PRN 123 and PRN 136.
Source: EGNOS User Support Page
You can also set the SBAS correction to be in authomatic mode.
The settings can be adjusted using the SxBlue Config software.