Created attachment 323
Capture network activity between ubuntu and windows 7 with craches (Captured here)

Hi! I have workrave on ubuntu (1th pc) and windows 7 (2th pc). 
I enter the same login / password to the workrave, I get 'access denied' (2th pc).

Network Preferences.
1th PC with ubuntu:
General
  checked  'Enable networking'
  entered login/password
  checked 'Allow incoming connections'
Hosts
  Without changes 
Advanced
  Without changes

2th PC with windows 7:
General
  checked  'Enable networking'
  entered login/password
  unchecked 'Allow incoming connections'
Hosts
  Entered IP in 'Host name' and 'Port by default'
Advanced
  Without changes

Network log (1th pc):
  Accepted new client.
  Client 'password' saying hello.

Network log (2th pc, copying from the log window does not work.) :
  Client Unknown connected.
  Client "[heap of characters similar to a hash]" saying hello.
  Client "[heap of characters similar to a hash]" access denied.
  Removing client Unknown.

If you delete the password to zero (2th pc), both the workraves crashes.

How to correctly enter the settings? Why is access denied? How to find out the reason?
Thanks.