minimwatch does not see minimserver

[luke55]

Hi,
I am running minimserver 0.8.5.3 update 128 on a DS411Slim Synology NAS, and minimwatch 0.8.5.3 update 62 on windows 7.

I had strictly no problem until recently, where minimwatch icon remains grey.
I am able to access minimserver gui when logged on the NAS, and checked it works as expected.
I disabled firewall on Windows and in the NAS, no change.
I also completely stopped my antivirus (Panda), no change.

My PC's IP is 192.168.1.100, and my NAS's IP is 192.168.1.64, network mask is 255.255.255.0
They are both connected to my internet provider box (livebox 4)

I went in minimwatch Properties, and tried to change the ohnnet.debug to 192.168.1.0 as advised in the network section of minimwatch, but it said that it's invalid ?
I tried different IP, no way, the only input that is accepted is "default"

Thanks for helping