Samba and Win10 Domain PC's refuse to cooperate

One of my WIn 10 PC's connected to a domain needs to connect to a Redhat 8 Samba share. I can connect any computer NOT on the domain to the share. The domain PC's keep asking for a username and password. The non-domain PC's accepted the credentials, but the domain computers will not. This is a time-sensitive issue that should have been resolved days ago. Any suggestions would be greatly appreciated.