Sounds like either you solve your link issues or write code that moves images when the connection is up.
Be aware that this won't be an off the shelf system. You must create and code for your bad connections and location issues.
Most remote locations just install some DVR and retrieve footage when they can. Either with a visit or when the link works.
Here is the situation, I need to setup a webcam in a remote location with the closest router being around 300m's away. 4G signal is inconsistent and unreliable so I need to go for a wired connection. What is the best way of achieving this?
Moreover, I will need to plug the webcam into a device to run it!! I'm thinking of a Raspberry pi or buying an old laptop with webcam.
Just to add to the problem, I need to be able to view the webcam feed remotely. So, I plan to live feed to the web. Any recommendations for this bit?
Thanks

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic