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


Another Part of South Central Windsor is Fibre Ready

Friday 23rd of February 2018 02:01 PM

Another part of South Central Windsor has Fibre. Some homes along Church, Dougall, Bruce, Grove, Pine, Erie and Caroline between Giles and Newbury are now able to order Fibre.

More Fibre in Walker Gates

Tuesday 20th of February 2018 11:22 AM

We've finished another stretch along Ducharme in Walker Gates. Homes on Barcelona, Helsinki, Osaka, Budapest, Meridian, Canberra and Ducharme are now Fibre ready.

More Fibre Along Old Tecumseh Road

Tuesday 6th of February 2018 08:26 AM

Another stretch along Old Tecumseh Road has been released this morning. Homes on Pheasant Run, Quinlan, George Kennedy, Walstedt Way, Wright Lane, and the north side of Old Tecumseh from Walstedt to Wallace.

Fibre In Roseland

Tuesday 30th of January 2018 10:00 AM

Fibre in Roseland! Homes on Mt. Royal Dr., Ashfield Cres., Mt. Sinai Cres., Mt. Carmel Dr., Villa Maria Blvd. S., eden Dr., Churchill Dr., Stratford Ct., Lennon Ct. amd Avon Dr. are now Fibre ready.

More Fibre News In Lakeshore

Tuesday 9th of January 2018 09:59 AM

More news for residents in Lakeshore along the Old Tecumseh Road area east of Patillo Rd. Homes on Marentette Dr., Wintermute Ave., Martindale Ln., Pierella Dr., Plant Dr. and Remo Cresc. are now Fibre ready.


Support Articles


Nothing yet, check back soon!



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