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


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.

Majestic Drive and surrounding area gets Fibre

Wednesday 19th of April 2017 02:07 PM

Our work in Lakeshore continues. Today we've added Majestic Dr., the remainder of Cleophas Dr., Moceri Cres., Nicole Circle and 292, 294 and 296 Russel Woods Dr. are now also included in our Fibre family.

Lakeshore - Fasan & Russel Woods Now Fibre Ready

Tuesday 21st of March 2017 03:19 PM

Our work in Lakeshore continues. We've added Fasan Cres. and just about all of Russel Woods Dr.

Lakeshore Fibre News - Elmgrove & East Pike

Wednesday 8th of March 2017 11:44 AM

MNSi Telecom has just opened up a new area of Lakeshore for Fibre Internet services. Elmgrove Dr. and East Pike Creek Rd.

Fibre Availability In Apartment Buildings

Wednesday 8th of March 2017 11:40 AM

Tell your landlord to give us a call at 519-258-2333 to arrange to get your building hooked up for Fibre availability at no charge to the building owner.


Support Articles


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MNSi services are subject to our Internet Access Agreement and other policies. Please review our Documents & Polices for details.