Computer not showing in network

Last week I upgraded my Acer laptop to version 1803. I went well. Today I decided to upgrade my Dell desktop and it did go quite as well.

On the laptop I can can see the Dell desktop in Network along with itself and one other 1709 macine as well as printers on the network. However on the desktop, it doesn't show itself but does show the laptop and printers. the printers work just fine.

What should I do to get the Desktop to show itself in Network?

Thank you.

A few minutes after posting the Desktop began showing up. Go figure!

Thanks anyway.