Cannot connect to the database after the computer disk was replaced (4335224)

Cannot connect to the database after the computer disk was replaced

Cannot connect to the database after the computer disk was replaced.
It is possible to connect to the database with other tools and from other computers.
To reinstall Toad or catalog the database manually does not help.
The error Toad shows is  "ERROR - no error information available".
The error in the db2diag.log is  :

"FUNCTION: DB2 Common, Cryptography, cryptDynamicLoadGSKitCrypto, probe:998
MESSAGE : ECF=0x9000002F=-1879048145=ECF_FILE_DEVICE_UNAVAILABLE
          The device is unavailable or uncapable of serving the request
DATA #1 : unsigned integer, 4 bytes"
The old disk label was E:. Now E is the CD driver.