Problem refreshing keys

[Jerry]

I don't know if this is the right place to ask this, but it is a start.

Kleopatra
Version 3.1.1-gpg4win-3.1.1

Trying to refresh the keys, produces this error message:

Starting C:\Program Files (x86)\GnuPG\bin\gpg.exe --display-charset utf-8 --refresh-keys... 
gpg: refreshing 387 keys from hkps://hkps.pool.sks-keyservers.net 
gpg: keyserver refresh failed: Server indicated a failure

This is happening on a Windows 10 PRO / amd64 machine. This has been occurring
for several days now. Is there something wrong with the server?

-- 
Jerry