Firewall Ports, IP ranges and URL's that might need enabling for Zoho Assist

Firewall Ports, IP ranges and URL's that might need enabling for Zoho Assist

Hi 
Can someone tell me what ports and IP ranges need to be enabled through a firewall to allow Zoho Assist to connect?

The client's machine sits the stating its connecting but I suspect the firewall is dropping the traffic.

Many thanks
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    • Release Notes: Version 1.91, February 2015

      Unattended Access (Beta) is live!   Unattended Access, a feature requested by a lot of our customers is live now. Currently, it's in beta. You can add up to 100 computers per Technician subscription. They can also be accessed by your organization members.  My Computers  list in Zoho Assist home page will  always  display the online status of your unattended computers. You can rename the computers whenever you wish.  Currently, Unattended Access can be configured only for Windows computers. Nevertheless,