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


Tecumseh Fibre News

Wednesday 8th of November 2017 04:24 PM

We just completed work on the neighbourhood to the east of the Tecumseh Arena. This area completely includes Tranquility Ave., Waterford Ave., Timbercrest Ave., Norcrest Ave., parts of Radcliff Ave., Dunshill Ave., Gatwick Ave., Maitland Ave., Thistledown Ave. and some of McNorton Street.

Riverside Fibre News

Friday 20th of October 2017 04:45 PM

More Fibre News Today! We've just completed work on a part of Riverside. The neighbourhood from McHugh to Tecumseh and Clover to Banwell is now complete and all homes on Clover, Festival, Venetian, Katella, Luxury, Trappers, Chateau and the south side of McHugh can now order Fibre services.

More Fibre Added South of SilverCity Cinemas

Friday 15th of September 2017 12:15 PM

Fibre services are now available on the south side of Ducharme, as well as Juliet Cres., Lavender Ave., the east side of Whitefish Cres. and part of Periwinkle Cres.

Elmgrove and Majestic Area of Lakeshore Finally Complete

Monday 11th of September 2017 03:54 PM

We're off to a great start this week for Windsor Fibre fans. We have another new area to announce in Lakeshore. After a long delay while the Town finished work on the street, we've now completed Majestic and Elmgrove in Lakeshore - the area is now ready for Fibre.

South Windsor Fibre Update

Wednesday 6th of September 2017 03:33 PM

Today is a good day for Windsor Fibre fans. We have another new area to announce in South Windsor. Homes on Holburn, Tulip, Yellowwood, Maguire, Sandison, Samantha and Clara are now ready for Fibre.


Support Articles


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