Wdmycloud’s server DNS address could not be found

I can’t to log into my WD My Cloud offsite.
This is my latest error message:
“wdmycloud’s server DNS address could not be found.”
Now what?

Are you signing in using mycloud.com?

Yes, but this morning I’m having no problems getting in.
Maybe it was just a transient problem.
I’ll find out for sure when I travel out-of-state latter today.
Thanks…