IF the PC you're using the view synology Survellance station video on via the application suddenly starts saying
- Connection Failed
- Cannot Connect to the resource
- The Connection Has failed
Then this is possibly because the PC you're using doesn't have access to the internet (which is a good choice by the way) and the client needs to update. Rather than saying it needs to update, it tries to get to synology's site to download and cannot, hence the messages, which have nothing to do with your NAS.