Can see entire network

in win 7 windows file explorer folder tree:
under "network" I see all computers and the NAS

but in dopus under "network" in the folder tree I only see the local computer.

why is that?

If it's always that way, it may mean a firewall or other security software is blocking Opus from talking to the network.

But if it is only sometimes then it may just be that the network enumeration in Windows can be unreliable, and caches things per-process, meaning some processes see different results to others. If that were the case then I'd expect similar problems in Explorer sometimes, and it to work in Opus sometimes, with it changing either over time or through reboots. So if it isn't doing that and instead is consistent for both programs, I'd look at firewall and similar software.