CSIO offers bilingual technical support for CSIOnet.


Contact the CSIO Help Desk by emailing:


Contact the CSIO Help Desk by dialing: 416-360-1773 or 1-800-463-2746

Live Chat

Use our live chat tool to connect with the CSIO Help Desk.

If you have a billing issue, please include your billing account number. If you have a mailbox or VPN issue, please include your CSIOnet ID.

Network Status

Network Status

Find out if a CSIOnet outage has been reported by consulting the Network Status page or viewing the status ticker that is scrolling above all pages on



Refer to the CSIOnet FAQ page to find answers to your frequently asked questions.