We have a NW5.1 SP5 Server
BM3.6

We have had SSO and SSL working for months. The majority of our
clients
access through SSO with Client trust, but the MACs access the internet

through SSL.

Additioanal memory was added and the server was restarted over the
weekend
for the first time in about 3 months, after which the SSL
Authentication
returns "Login Failed, Please try again Later"

Have checked Ca and KMO expirary dates, have re-created the KMO object
in
case of some corruption, although this was grasping at straws a
little.

There is a LPO in the security context, and this is configured with an
NDS
rule. There is no lpocache.dat file in sys:system.

We have not patched the server recently, according to the client
'nothing
has changed'.

The correct tree name and user context is configured.

I'm stumped, SSL in my experience just works. Any clues would be
greatly
appreciated.

Aneta