libcouchbase on Windows

Hello,
I'm trying to use libcouchbase SDK on Windows. Everything seems to be ok but when key is about to be stored into Couchbase it returns "No such key" error (LIBCOUCHBASE_KEY_ENOENT). Testing standard Hello C Couchbase example - http://www.couchbase.com/docs/couchbase-sdk-c-1.0/hello_couchbase.html.

The same error is returned by compiled "cbc" tool:
C:\test> cbc stats -h 192.168.0.100:8091
Failure requesting stats:
No such key
Failure requesting stats:
Operation timed out
Failure requesting stats:
Operation timed out

Server: Couchbase 1.8.0 installed on CentOS, default setup
Client: Windows 7 64-bit
Compiler: Microsoft Visual C++ 2010 Express
Versions tested (with same results):
- libcouchbase-1.0.4, libvbucket-1.8.0.4
- current from github repository libcouchbase and libvbucket

Couchbase server is running and operational. No firewalls or antivirus involved (TCP ports are accessible). Tested from Linux without problems. Also tested from Windows with php_memcache.dll without problems.
Compilation of libcouchbase and libvbucket on Windows is without errors.

Also tried step-by-step procedure described here (also with same results):
http://trondn.blogspot.cz/2012/01/so-whats-story-about-libcouchbase-and....

Do you have any idea what could be wrong?

Thank you.