I have read some similar issues, but haven't quite figured mine out.
I have recently set my serviio up with my Sony Bravia after moving house. It worked previously with no issues; my TV still connects to my PC, I can see and play video format, however after playing the video for about 10 mins, it will stop and I receive the error message "Cannot access the server. Please check your network settings".
The only difference is I updated Kaspersky and have a new internet provider and modem. I have already tried uninstalling then reinstaiing java and checking firewall settings and disabling the firewall & network security, but still have the same issue.
Please help - this is driving me crazy!