Hi Oliver,
For the All-in-One setup both the Sametime server and the DOTS plugin need to be configured to use 127.0.0.1 which needs both a chatlogging.ini and a notes.ini entry
chatlogging.ini:
CS_SERVER=127.0.0.1
notes.ini
CS_SERVER_IP=127.0.0.1
Restart both sametime and the Chatstore plugin.
From the Domino console you can check the plugin with:
Tell DOTS chatstore status
which will return:
[1490:000A-064C] 06/05/2015 17:43:06 DOTS Version 1.0
[1490:000A-064C] 06/05/2015 17:43:06 DOTS Running…
[1490:000A-064C] 06/05/2015 17:43:06 DOTS Port: 9090
[1490:000A-064C] 06/05/2015 17:43:06 DOTS IP: 127.0.0.1
[1490:000A-064C] 06/05/2015 17:43:06 DOTS Open session count: 0
This shows what port and IP (if configured) the plugin is listening on.
Let me know if this does not help.