I recently bought 2 Sonos One SLs. I was able to set the system up and my phone was able to connect to them. However, every subsequent time I try to open the app it continues to load and then has me go through the whole setup process again. I am on the same WIFI network so do not understand why it does not connect automatically. It takes about 10 minutes to go through the connect process of finding the speakers, reentering the WIFI password, etc. I have deleted the app and then reinstalled it several times. I have gone through this process several times and it is making me rethink the purchase.
My wife does not have the same issue and is able to connect automatically.
Given the price, it is extremely frustrating that these speakers do not connect automatically to the app when I open it.