SAP not starting on Windows 2012 - message server not responding

Hi gurus,

I have some strange problems with starting SAP ERP 6.0 on Windows 2012 OS with Oracle 11.2.0.4 database. Server is connected into domain, but SAP is installed as local administrator.

System was working untill today morning (at night was shutted down becase of maintenance)

First weird observation : After launching sapmmc is not asking for any credentials during system start or stop. Also starting/stopping system or even expanding list is very, very slow.

This is how it looks:

Second weird observation: Message server is running, but is not responding, so disp+work processes cannot start. Running with rdisp/TRACE = 2 parameter shows this kind of logs:

[Thr 3268] MsIAddAddr: add 0 [10.14.16.127] (HOSTNAME)

[Thr 3268] NiHLGetNodeAddr: found hostname 'localhost' in cache

[Thr 3268] NiIGetNodeAddr: hostname 'localhost' = addr 127.0.0.1

[Thr 3268] MsIAddAddr: add 1 [127.0.0.1] (LOCALHOST)

[Thr 3268] NiPGetNodeAddrListInit: use GetAdaptersAddresses implementation (03)

[Thr 3268] MsGetOwnIpAddr: my host addresses are :

[Thr 3268] NiHLGetHostName: found address 10.14.16.127 in cache

[Thr 3268] NiIGetHostName: addr 10.14.16.127 = hostname 's[xxxx]n13'

[Thr 3268]   1 : [10.14.16.127] socvn13 (HOSTNAME)

[Thr 3268] NiHLGetHostName: got address 127.0.0.1 from operating system

[Thr 3268] NiIGetHostName: addr 127.0.0.1 = hostname 'S[xxxxxx]13.domain.Net'

[Thr 3268]   2 : [127.0.0.1] S[xxxxxx]13.domain.Net (LOCALHOST)

Strange, because few lines earlier hostname is normally resolved to ip address attached to interface.

What can cause this problems? Ive double checked services file, modified several time hosts file, checked start and instance profile files... msmon connects to message server without any problem.

I tried also started with command line - no success. R3trans is working, niping result:

C:\Windows\system32>niping -v -H s[xxxxx]13

Hostname/Nodeaddr verification:

===============================

Hostname of local computer: S[xxxxx]13                          (NiMyHostName)

Lookup of hostname: S[xxxxx]13   (ALL UPPER CASE)                               (NiHostToAddr)

    --> IP-Addr.: 10.14.16.127

Lookup of IP-Addr.: 10.14.16.127                             (NiAddrToHost)

    --> Hostname: s[xxxxx]3 (ALL LOWER CASE)

Lookup of hostname: s[xxxxx]13  (lower case)                                (NiHostToAddr)

    --> IP-Addr.: 10.14.16.127

Lookup of IP-Addr.: 10.14.16.127                             (NiAddrToHost)

    --> Hostname: s[xxxxx]13 (lower case)

Maybe here is a problem, hostname is case sensitive? Also this result is strange:

C:\Windows\system32>niping -v -H localhost

Hostname/Nodeaddr verification:

===============================

Hostname of local computer: S[xxxxx]13                          (NiMyHostName)

Lookup of hostname: S[xxxxx]13                                  (NiHostToAddr)

    --> IP-Addr.: 10.14.16.127

Lookup of IP-Addr.: 10.14.16.127                             (NiAddrToHost)

    --> Hostname: s[xxxxx]13

Lookup of hostname: localhost                                (NiHostToAddr)

    --> IP-Addr.: 127.0.0.1

Lookup of IP-Addr.: 127.0.0.1                                (NiAddrToHost)

    --> Hostname: S[xxxxx]13.[domain].Net

Also, problematic logs from disp+work process:

*** WARNING => DpNetCheck: NiServToNo(sapdp00) failed (rc=-3)

*** ERROR => DpNetCheck: NiServToNo(sapgw00) failed (rc=-3) [dpxxtool2.c  6387]

Sat Apr 18 19:26:53 2015

*** WARNING => DpNetCheck: NiAddrToHost(1.0.0.0) took 5 seconds

***LOG GZZ=> 3 possible network problems detected - check tracefile and adjust the DNS settings [dpxxtool2.c  6525]

Thanks in advance.