Sorry to hear you're having an issue maintaining a connection with your Blink Sync Module, though Rogers isn't able to assist with connectivity of this device specifically, we can assist in identifying if the modem is working appropriately. Perhaps others in the community may have experience with this device as well and can provide some insight.
Regarding the modem can you confirm if you're experiencing disconnections on all devices at the same time? Or is it just with this device?
Sorry to hear your Blink Sync Module home security system is disconnecting. Sounds like the home security system is disconnecting from the internet while other devices remain connected. Have you tried reaching out to the manufacturer's support?