Starting on September 12, 2017, we will be bringing online a new and improved system to which Enterprise Agents will upload data. The new system’s domain name is data1.agt.thousandeyes.com and its IP address is 22.214.171.124. This change will affect customers who have security devices with configurations (firewall rules, web proxy rules, router ACL’s) which explicitly permit ("whitelist") Enterprise Agent connections to ThousandEyes. Currently the connections go to c1.thousandeyes.com, at IP address 126.96.36.199. Customers with whitelists should add the new information to the existing configurations (or if possible whitelist the entire ThousandEyes network, 188.8.131.52/24).