I have been having very similar issues with the Sync module reporting it is offline. We have our router setup to turn off the Wi-Fi at night (to discourage the use of internet and promote better sleep). This has never posed a problem for our Blink setup (we have had multiple Camera’s setup for almost a year now). Over the past week, and specifically over the past 3-4 days, I have had to physically go to the Sync module each morning when the Wi-Fi is turned back on and power cycle the module before it is able to find and connect to our Wi-Fi network otherwise we get the “Sync module offline” message when trying to view our cameras. However, in my case, once I power cycle the sync module, everything continues to work perfectly until the next morning when I then need to re-power cycle the Sync module again to re-establish a connection to my home network.
I opened ticket #134067 with Customer Support, but was told on the ticket that the issue was caused when “…there are times when the sync module struggles to establish a connection to your WiFi due to heavy bandwidth usage”. Nothing had changed with our network or camera setup leading up to this. I am also having a hard time understanding how a standard home network with standard bandwidth utilization would result in the Sync module to not be able to join the network requiring me to physically power cycle the module.
I currently enabled some additional logging options within my router to see if I can track down the source of the stated heavy bandwidth usage that might be causing the issue. We do have an older sync module with the Ethernet port, I thought about hard-wiring the sync module but read here in the community that the Ethernet port is no longer enabled.
In case it helps identify some common issue, my Sync module is reporting that it is running Firmware 2.2.8, I am not sure when it upgraded to this version though.
I just wanted to let you know you are not the only one seeing the “Sync module offline” message recently.