Client for Open Enterprise Server 2 SP 4 (IR9)
When trying to change the password from the client, an error is reported:
Attempt to change password for server TREE_NAME failed. Error code: 0xfffffec1
Fixed in Client for Open Enterprise Server 2 SP4 (IR10) and later.
There is a mismatch in the cryptographic negotiation between Client for OES 2 SP4 (IR9) and eDir 9.x
This error will appear if the change password request is sent to an OES 2018 server holding a R/W replica. If the request is sent to an OES 2015 SP1 server, the password is changed, and no error is displayed.