I have installed SQL Server 7.0 Standard edition on a Windows NT 4.0 Server with Service Pack 4.
I get the following error message when I try to connect from a
client machine.

18460 :Login failed. The maximum simultaneous user count of 1 licenses for this
'Standard Edition' server has been exceeded. Additional licenses should be
obtained and installed or you should upgrade to a full version.

The SQL Server is configured for per server licencing

Do you know what is the problem?

Thanks and best regards