Earlier this morning a routing issue was identified in one of our upstream network providers which caused connectivity problems when attempting to access our network.
A work around has been put in place which has restored access and we are continuing to monitor the situation.
We will update this post when we have more details.
Update 10:05: The earlier partial connectivity problems were due to our upstream provider not providing us with a full BGP routing table. This resulted in only part of the Internet being fully reachable from our network. A workaround was put in place which restored connectivity whilst engineers investigated further. As of 10:00 a full BGP routing table is now being received and the earlier workaround has been removed. We will continue to monitor connectivity and will update this post if required.