TV and Serviio don't recognize each others

Suddenly my TV (Sony EX724) and Serviio don't recognize each others. I'm not sure, but I don't think anything has changed in the devices, just can't seem to connect Serviio(laptop) to my TV/PS3.

How should I go finding what the problem is?

I already checked the internet/lan connection on both devices, re-installed Serviio and have tried to stop/start Serviio service manually.

[moltra]

what is the IP address of each device. Check and see if your firewall settings have changed.

Attach your serviio.log file.

Thanks.

Not exactly sure what happened but it seems to work now. I deleted it once again and tried to set all the firewall settings default and configured them again once re-installing Serviio. All good!