Hi, I'm one of the network engineers at Zen. I'm intrigued as to how you are defining the pipes you are connected to, because we have no 'pipes' labelled as DSL16, 17 or 18. We do have DSL gateways which would resolve their names as DSL1 to DSL8 (In both London and Manchester), possible that either we have the reverse DNS entries mangled or you are referring to something else? There was an issue this morning with the DSL gateways for the south of England that may have impacted some FTTx users that our Network Ops team have resolved. This was a permanent ,rather than a tactical, fix.