Based on multiple recent posts to this forum, it’s clear that there’s a serious bug in the iOS version of the Sonos app. Even if you enter your email and password correctly, you cannot log into your account, which makes it impossible to do basic tasks, such as add a new device:

I really don’t want to try the suggested workarounds, particularly since I don’t trust that they’ll work. I shouldn’t have to create a whole new account, just to connect a device, then have to re-create any other aspects of my household Sonos network, my streaming services, and anything else that the new account will require.

I had been planning on buying some additional speakers, but unsurprisingly that purchase is on hold.

Would someone from Sonos customer support please indicate what steps you are taking to fix a known, serious problem. Many thanks.