The wireless card could be going bad. Try unplugging the Connect from power for a couple of minutes and reboot your router. You can also try wiring the Connect directly to your router with an ethernet cable. If this doesn’t help, contact Sonos Support: https://support.sonos.com/s/contact?language=en_US
FYI… the Connect and Connect:Amp are both discontinued devices. The Port has replaced the Connect and the Amp has replaced the Connect:Amp.
The CONNECT that you have should continue to work as it always have. Sonos so far has only abandoned the remote devices, and an old 30 pin iPod dock, all other devices are still supported using the S1 software. Not sure if your particular date of manufacture means whether it is S2 compatible, but if it’s not, it will continue to work as before using S1.
The main caveat is that S1 devices can not be “grouped” and controlled by S2 controllers, so it’s possible that you could have two disparate systems.
Since you’re saying the LED is flashing, have you checked the LED states FAQ? There’s several possibilities listed, from a fault inside the unit to wifi issues, etc. More information might be helpful to give you guidance on what the particular issue is.
You also may want to submit a system diagnostic , and call Sonos Support to discuss it.
There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.
When you speak directly to the phone folks, they have tools at their disposal that will allow them to give you advice specific to your Sonos system and network.
