I have several users who are not able to log in via cifs to all servers, but
the are able to do this via netware client.

Here a log from nmasmon with one user, who is not able to login:

NMAS Enterprise Edition
0: Screen and file output started at Wed Sep 14 09:34:02 2005

2: Create NMAS Session
2: NCPCheckIfLocalUser: client supplied user DN argani.users.mra.mr.de
2: NCPCheckIfLocalUser: checking actual user DN
CN=ARGANI.OU=Users.OU=MRA.O=MR.C=DE
2: NCPCheckIfLocalUser is a local user.
2: Server thread started
2: NMAS_CanDo StartClientSession 0
2: >>ClientPut: message size=8 queue Size 0
2: >>ClientPut: message size=7 queue Size 8
2: NMAS_CanDo sendMessage 0
2: <<ClientGet: message size=8 queue Size 0
2: >>ServerGet: message size=8 queue size 0
2: >>ServerGet: message size=7 queue size 7
2: CanDo
2: Sequence Selected == "Windows Native File Access"
2: Login Method 0x00000022
2: MAF_Begin LSM 0x00000022
2: <<ServerPut: message size=8 queue size 0
2: <<ServerPut: message size=5 queue size 8
2: MAF_Read LSM 0x00000022
2: >>ServerGet: message size=8 queue size 0
2: <<ClientGet: message size=5 queue Size 0
2: NMAS_CanDo sendMessage 0
2: NMAS_CanDo disassembleDoPacket 0
2: MAF_Begin LCM 0x00000022
2: MAF_Write LCM 0x00000022
2: >>ClientPut: message size=8 queue Size 0
2: >>ClientPut: message size=2449 queue Size 8
2: MAF_Read LCM 0x00000022
2: <<ClientGet: message size=8 queue Size 0
2: >>ServerGet: message size=2449 queue size 0
2: MAF_Write LSM 0x00000022
2: <<ServerPut: message size=8 queue size 0
2: <<ServerPut: message size=2449 queue size 8
2: MAF_Read LSM 0x00000022
2: >>ServerGet: message size=8 queue size 0
2: <<ClientGet: message size=2449 queue Size 0
2: MAF_Write LCM 0x00000022
2: >>ClientPut: message size=8 queue Size 0
2: >>ClientPut: message size=2449 queue Size 8
2: MAF_Read LCM 0x00000022
2: <<ClientGet: message size=8 queue Size 0
2: >>ServerGet: message size=2449 queue size 0
2: MAF_GetPassword LSM 0x00000022
2: MAF_Write LSM 0x00000022
2: <<ServerPut: message size=8 queue size 0
2: <<ServerPut: message size=2449 queue size 8
2: MAF_End LSM 0x00000022 failed
2: ERROR: -1642 Login Method
2: ERROR: -1642 NMAS Manager
2: <<ServerPut: message size=8 queue size 2449
2: <<ServerPut: message size=4 queue size 2457
2: >>ServerGet: message size=8 queue size 0
2: <<ClientGet: message size=2449 queue Size 0
2: MAF_End LCM 0x00000022
2: >>ClientPut: message size=8 queue Size 0
2: <<ClientGet: message size=8 queue Size 12
2: <<ClientGet: message size=4 queue Size 4
2: >>ClientPut: message size=8 queue Size 0
2: <<ClientGet: message size=8 queue Size 0
2: >>ServerGet: message size=8 queue size 0
2: <<ServerPut: message size=8 queue size 0
2: Server thread exited
2: Client Session Destroy Request
2: Local Session Cleared (Not Destroyed)
3: Destroy NMAS Session for reuse
3: Create NMAS Session
3: NCPCheckIfLocalUser: client supplied user DN
argani.Service.MRO-Global.MRO.MR.DE
3: ERROR: -601 NCPCheckIfLocalUser: DDCResolveName
3: ERROR: -601 NCPCheckIfLocalUser failed.
3: NCPCheckIfLocalUser failed -601
3: Client Session Destroy Request
3: Destroy NMAS Session
3: Aborted Session Destroyed (with MAF)
4: Create NMAS Session
4: NCPCheckIfLocalUser: client supplied user DN
argani.KIRN.KIR.KI.K.MRO.MR.DE
4: ERROR: -601 NCPCheckIfLocalUser: DDCResolveName
4: ERROR: -601 NCPCheckIfLocalUser failed.
4: NCPCheckIfLocalUser failed -601
4: Client Session Destroy Request
4: Destroy NMAS Session
4: Aborted Session Destroyed (with MAF)
5: Create NMAS Session
5: NCPCheckIfLocalUser: client supplied user DN
argani.kirs.KIR.KI.K.MRO.MR.DE
5: ERROR: -601 NCPCheckIfLocalUser: DDCResolveName
5: ERROR: -601 NCPCheckIfLocalUser failed.
5: NCPCheckIfLocalUser failed -601
5: Client Session Destroy Request
5: Destroy NMAS Session
5: Aborted Session Destroyed (with MAF)
6: Create NMAS Session
6: NCPCheckIfLocalUser: client supplied user DN argani.users.mpp.mr.de
6: ERROR: -601 NCPCheckIfLocalUser: DDCResolveName
6: ERROR: -601 NCPCheckIfLocalUser failed.
6: NCPCheckIfLocalUser failed -601
6: Client Session Destroy Request
6: Destroy NMAS Session
6: Aborted Session Destroyed (with MAF)

Any idea?

Kindly Holger