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


More Fibre Areas Added To Lakeshore

Friday 11th of August 2017 09:33 AM

Hey-Diddly-Ho Neighboureenos! It's finally done. Flanders Road, St. Andrews Drive and Marjorie Street along Old Tecumseh Road in Lakeshore are now ready for Fibre service. We've also included Laurendale Drive, Jordan Lane, Bel Air Circle and Vintage Oaks Drive for good measure.

Areas in South Central Windsor Now Open For Fibre

Tuesday 8th of August 2017 04:28 PM

We've just opened up a large section of South Central from Ouellette Ave. to specific areas of Church and Bruce - from Tecumseh Road to Giles Blvd.

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.


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