> The <computer-name> has Windows Netbios limitations of 15 characters (see > http://wiki.squid-cache.org/ConfigExamples/Authenticate/Kerberos ) That's it, it worked!!! Thank you Markus! I reduced the length of the name to under 15 characters (3MSYDPROXY01-K) and it works fine. I feel foolish for not picking that up on the Squid Kerberos wiki. I will email the msktutil maintainer and ask if they can add that to the man page to make it more obvious for others in future. Thanks again. James