519-258-2333 · 1-888-310-6674

MNSi Support

Allow our professional and courteous staff to help you!

Customer Service


If you have questions about billing or payments, our customer service staff is waiting to help you during normal business hours. When calling for customer service press option 1.

Monday to Friday 8:00 AM to 6:00 PM
Saturday 9:00 AM to 5:00 PM
Sunday Closed
Chatham: 519-436-1199
London: 519-433-4811
Sarnia: 519-344-2237
Windsor: 519-258-2333
Toll Free: 1-888-310-6674
Business Sales: 519-985-8415
Customer Service: accounts@mnsi.net
Business Sales: sales@mnsi.net
Billing Information and FAQ

Technical Support


If you are having issues with your service or you have a question of a technical nature our technical support staff is waiting to help you 24/7. When calling for tech support press option 2.

Chatham: 519-436-1199
London: 519-433-4811
Sarnia: 519-344-2237
Windsor: 519-258-2333
Toll Free: 1-888-310-6674
Business Sales: 519-985-8415
E-mail: support@mnsi.net
Knowledge Base & FAQ

Speed Test

If you need to check your connection speed you can use:

Test your Internet connection speed at Speedtest.net

Underground Fibre Construction

For information about MNSi's underground fibre construction click here

MNSi News


Vintage Oak and Bel Air in Lakeshore Get Fibre

Thursday 27th of July 2017 09:06 AM

We've just completed work on Vintage Oak Drive and Bel Air Circle in Lakeshore.

Fibre Near East Riverside Park

Monday 24th of July 2017 09:05 AM

We've just completed work on another stretch of homes near Blue Heron Trail in East Riverside Park near McNorton Street from Tranquility to Duneshill, including Tranquility Ave., Waterford Ave., Timbercrest Ave., Norcrest Ave., Radcliff Ave and the west side of Duneshill Ave.

Fibre Ready Near Holburn Park

Thursday 6th of July 2017 12:01 PM

We've just completed work on another stretch of homes near Holburn Park.

South Windsor Receives Fibre Update

Monday 12th of June 2017 10:54 AM

We've just expanded our Fibre availability in South Windsor. We can now service homes on Rockport Street, Lavender Avenue, Bunker Avenue, Fontana Avenue, Sasafras Avenue and parts of Unicorn Avenue.

South Walkerville Fibre Area Expanded

Tuesday 30th of May 2017 12:44 PM

We've just expanded our Fibre service in South Walkerville. We can now service homes in the East side of Langlois from Hanna St. E. to Tecumseh Rd. E.; West side of Benjamin from Hanna to rail tracks; East side of Hall Ave. from Shepherd St. E. to rail tracks; West side of Moy Ave. from Shepherd St. E. to rail tracks; and East side of Moy Ave. from 1586 to 1650.


Support Articles


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