Can't set up second icloud email account on iphone 13 pro max running ios 15
I have my primary email icloud me.com account on iPhone 13. I have tried to add three of my secondary me.com accounts but password verification fails on the phone account setup screen.
I can sign in to iCloud on my imac with my secondary me.com accounts but using the same passwords to setup these secondary cloud email accounts fails. I have even changed the password for the secondary icloud accounts and can still login via iCloud on my iMac with the new passwords
The secondary accounts worked fine on my old 6s plus. But I wanted to do a clean install on the new iphone.
I have been able to add my gmail account and some virginmedia accounts to the new iphone it is just the icloud secondary accounts that will not work.
Any thoughts on how I can get the second account on the iPhone.
iPhone 13 Pro Max, iOS 15