It may be a lot easier for new My Cloud Home (MCH) or MCHDuo owners to read the KBA (Knowledge Base, link on top left menu of every WD community page, above) or chat with support to get fast answers.
It has been like that since about day 1, more than 6 years ago when the MCH was introduced. There is no reason for local backup folders, and that is what they are - for backup only, to be seen online. It is by design. This is in the the owners manual.
Again, this was by design in the beginning when the MCH was designed to be a secure personal cloud storage that has private folders not easily accessible by everyone on the local network, done for security purposes. The exception are the public folders which can contain backup data which is often encrypted by the backup app.
You are missing out on all the updated information that is on the front page of the MCH community support page and short videos to introduce local access options.
This is because your router is dropping the UPnP ports when you reboot or log off connection to the MCH from the webapp (browser). Some routers are just not stable maintaining a UPnP connection and some routers just have their UPnP disabled, this is in the owner’s manual.
