Error Message: This site cannot be reached, fax.ramseysolutions.com took too long to respond.

Reply: This error can happen if trying to click “grant access under fax configuration tab and you have an older package version installed. To resolve, please upgrade your app package to what we have installed on AppExchange: https://appexchange.salesforce.com/appxListingDetail?listingId=a0N3000000B5FogEAF.