Can you help me on this issue please?

DB2 Ver 8.2 FP 12
Windows 2003.

I have switched the HADR role to the Standyby server as Primary successfully. But i can not connect to the database.
I issued the following command and getting the error as USER ID/PASSWORD Invalid or Resticted.

db2 connec to sample user username using password.

I have checked the user id on domain and it has been setup as local account and it is not locked. Even I can logon to the windows using the same account.

I have stopped and restarted DB2. But still getting same message.

Please post your comments.
Thanks, gunas.

The sentence is a little confusing. Did you say you did a graceful takeover on the standby and the standby because primary. When you do db2pd -db $DBNAME -hadr it says 'Primary' as the role, and now if you issue a connect you are not able to connect.

What privileges does the user id have ?
What is the DB state, is it active ?

have you defined the alternate server - you should always connect what is the regular primary and define on both machines an alternate
client has todo 1 connect to receive this alternate info
list db directory show detail