Capita have changed the service URL for their SOLUS3 Platform:
What is the impact for users of SOLUS3?
The downloading of patches and updates via SOLUS3 may fail if the new URL is not approved for access via internet filtering systems. Capita are therefore recommending that customers add the new URL http://s3dl.ess-solus.co.uk to their whitelist.
Once this has been added, downloads from SOLUS3 will continue to be processed as expected.