teamviewer hanging when connecting to files

[colbags]

Hi, I am new here so hello to every one.
I am having problems accessing anything through my computer icon. I wish to view network files on my nas but after double clicking on my computer icon it hangs forever near the end of the address bar (Green loading bar). I tried to go through the search function for network but didn't even get as far as the loading green bar in the address bar. I can access my pictures,documents and music instantly. Everything else is inaccessible for the same reason.
Am I being blocked from accessing these files by my routeror something and how can I get around this issue?
 

[matt]

What brand of NAS?