Hi NZNOG If there is someone in network operations from IRD on list or anyone has a contact could they please make contact off list. At $DAYJOB I have a customer who can load and interact with the main ird.govt.nz site but trying anything that touches https://services.ird.govt.nz is timing out. I have tested from two other IP Addresses in the same /24 and both other sites are loading correctly. (All three sites resolve / connect to 222.153.202.43) Same router is being used at all sites and the firewall rules that are different are not recording any matches during testing. SYN is sent but no SYN/ACK received. Customer has spoken to IRD but was told by IRD vague "Firewall issues" so I am looking for a contact to understand whats being seen from IRD side to resolve. Regards Alexander alexander(a)neilson.net.nz 021 329 681