The Soundtouch application on my iphone will not find my Bose wireless adaptor for Soundtouch 220. My system is working and I am steaming music from my PC. Phone application was working fine and then it just disconnected from soundtouch system and now can not find it again. Wifi connection is good & I've turned phone wifi on and off, but still won't connect.
Since only the phone is having trouble detecting the speaker, see whether the phone may have automatically connected to a different segment of the network. Many home Wi-Fi routers will broadcast multiple network names (SSIDs) at once providing the phone with multiple options to connect to for best signal. These might appear as a "guest" or "5g" version of the standard network name. Look on the Wi-fi list for the iPhone and check to make sure it is connecting to the same network name as the speaker is using. If not, the two will be unable to detect each other. Hope this helps!