Mojave losing SMB connection, won't reconnect without restart
I've got an SMB connection set up to access the file system of my local NAS. After rebooting my MacBook Air, I'm able to open the SMB connection using smb://<My NAS Name> and it asks me which volume I want to mount.
What I'm experiencing is that after a while, these connections drop (I'm not sure, but I think it might be after my Mac goes to sleep). If I try to reconnect to the SMB connection, I get the error message.
There was a problem connecting to the server "<My NAS Name>".
The server may not exist or it is unavailable at this time. Check the server name or IP address, check your network connection and then try again.
The only way I've been able to find that will allow me to reconnect to the SMB is by restarting my Mac.
I don't really want to be restarting my Mac every time I want to connect to the SMB volume. I've tired it by putting in the IP address of the NAS too, but it returns the same error. I appear to have a fine network connection to the NAS and in general on my Mac as I'm able to browse it via its online portal.
Is there any way around this?
Many thanks
MacBook Air