To update the software on your Satlink WS-6906 , you typically need the SatlinkTools PC software and the corresponding firmware Software & Firmware Sources
Do you have the that originally came with the device? Satlink WS-6906 Software Upgrade Guide | PDF - Scribd satlink ws6906 software upd free download link
Updating your Satlink WS6906 software can bring several benefits, including: To update the software on your Satlink WS-6906