Boatnmaniac, thank you for your advice. I will do some reading using the link you provided later today.
Two of the logins in my list that looks like your list above are Schwab logins, and they indeed have the keys shown above. They are the only logins with keys. There are actually five Schwab investment accounts divided among the two login accounts. At the present time all five of those show the Direct Connect connection method. Perhaps that is the problem, since you say a login with a key should be using Express Web Connect.