Two weeks shouldn’t cause any significant issues. According to the LED states FAQ, it’s connected properly, so I’m wondering if there is some other issue. Please don’t do any further factory resets, they don’t really help, and remove any data that Sonos may have read to assist.
I’m wondering if there’s some other connection issue between your router and the speaker. I’d be tempted to try a simple network refresh, by unplugging all Sonos, and then rebooting the router. Wait a couple of minutes for the router to come up, then plug back in your Sonos. Check to make sure there’s nothing blocking the controller from reaching the speaker, such as VPN or ‘work accounts’ which can block access. In fact, if you can, try another device as a controller.
If none of this works, I would call Sonos Support to discuss it.
When you speak directly to the Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.