Today, after updating my NetWare 6.5 server to the latest patch level - which makes it an OES server now, I believe, I found that noone could login because: -

"NMAS Client Login Module Not Found - Error 1663"

I did a quick search but haven't found anything fully explaining what has happened.

It was easy to turn off NMAS via the Client Properties - but this looks like a server administration issue really, and not a client issue, although the client is obviously affected.

I'm a bit miffed that I might have to change all the client login properties by hand, so is there something I can do on the server to repair the situation.