When KDE starts and the password dialogue to unlock KWallet is not being answered immediately, KTP will not connect accounts that need authentication. Instead it will claim that everything is fully online, even if just the accounts that do not require authentication (namely Bonjour in my case) are actually connected. It will not even later, when KWallet is unlocked, enable the offline accounts. I need to manually open the Contact List and again set the status to online, for the remaining accounts to connect. Reproducible: Always
*** This bug has been marked as a duplicate of bug 300062 ***