When following the steps here - https://trailhead.salesforce.com/content/learn/modules/marketing-cloud-connect/finish-mc-connect-configuration- I am hitting this error in SFMC when trying to connect SFMC to SFDC:
'An exception occurred while saving the integration.'
Looking at the login history of the Salesforce System admin user, I see these entries:
I have double checked that the Connected App 'Salesforce settings look correct and they are setup as outlined in the Trailhead module.
Everything looks correct to me - I followed the Marketing Cloud Connect startup wizard and selected the 'automatic' settings. In Setup | Network, I even see the IP address in the System user login entry listed there too so I am also unsure why it's saying 'Restricted IP'.
Do I need to restart everything from scratch? This is the only advice I can seem to find about how to resolve issues of this nature: https://help.salesforce.com/articleView?id=000337425&type=1&mode=1