Hi,
is the user meber of the local admin group on only one node or both of them?
Please check this one:
Network Load Balancing - "access denied" when loading configuration information from host2
https://social.technet.microsoft.com/Forums/windowsserver/en-US/c01501ba-5207-4f92-ac39-8a78fe0d36da/network-load-balancing-quotaccess-deniedquot-when-loading-configuration-information-from-host2?forum=winserverClustering
(If the reply was helpful please don't forget to upvote or accept as answer, thank you)
Regards,
Stoyan