Recently inherited 4x Fujitsu split units and AC cloud FJ-IR-WIFI-1NA devices to control them.
Previous owner gave me all details to accounts and even left the router, so I was able to control them right away after getting internet/modem hooked up.
Everything was working fine until I needed to get a new router due to WiFi issues on other unrelated devices.
I tried resetting the AC cloud units by holding down the button for 10 seconds, reconfiguring following directions. At the end of the process the LED shows solid red and briefly, I could connect to the units in the AC cloud app. However, throughout the day, they randomly drop off showing no connection. I could check the app every five to minutes or so and see a different assortment of which are and which aren’t connected.
I then tried deleting the devices from previous owner account (which I was using to access) and creating a new account and registering. Followed same process to get them connected but they still randomly drop off.
ADDITIONALLY, one of the units has never entered configuration mode for me. It is always blinking red. I hold down button for 10 seconds and it stops blinking for a bit but then starts again. I never get the green light.
Any help would be appreciated.