I have 2 iMacs - an older one (mid-2011) and a brand new 2021 model. I have Logi Options installed on the older one and Logi Options+ installed on the new one. I'm using an MX Master 3 for Mac mouse on both, with one paired to channel 2 and one paired to channel 3. The older iMac is running macOS High Sierra (10.13.6) which is the newest version I can install on it (can't be upgraded any further) and is paired to MX 3 via the Logitech bluetooth dongle. The new iMac, of course, has macOS Monterey (12.0.1). I cannot get either computer to establish FLOW. Regardless of whether I try to set it up using the old iMac or the new one, it says it can't find another computer on the network. They're both on the SAME wifi network, internet is working perfectly on both, and they're sitting right next to each other. Can you please tell me how I can enable FLOW?? Your troubleshooting section on the website was NOT helpful in the least.