GLS/Teach Multiple Sites Down

Incident Report for WiscNet

Postmortem

Date & Time of Incident: 9:26 AM 8/12/2026
Duration: 933
Technician(s): Fue Khang, Julio Calixto, Connor Felton
Review Date: 8/13/2026
Brief Summary: Alarms came in at 9:26 AM 8/12/2026. Called GLS and they advised this was due to a larger outage with ATT and their LMP. Later revealed to be a fiber cut on Frontier’s side. Alarms cleared at 12:59 AM CST.
Root Cause: Fiber cut on LMP side.

Posted Aug 13, 2026 - 10:33 CDT

Resolved

This incident has been resolved.
Posted Aug 13, 2026 - 10:30 CDT

Update

Hello,

At this time we are seeing all alarms cleared and services restored.

We are currently following up with GLS to confirm the status of the repair.

Please reach out with any questions.

Thank you,
Posted Aug 13, 2026 - 05:56 CDT

Update

Hello,
We are still waiting on a new update from AT&T on this issue. We will update you again as soon as we receive new information.
Posted Aug 12, 2026 - 22:53 CDT

Update

Hello,
We are currently waiting on a new update from AT&T on this issue. We will update you again as soon as we receive new information.
Posted Aug 12, 2026 - 21:11 CDT

Update

Hello,
AT&T is still assembling crews and materials for this issue. There is no ETR at this time.
Posted Aug 12, 2026 - 18:52 CDT

Update

GLS/TEACH have discovered a fiber cut on their network. They are currently gathering materials and crews so they can begin repairs. There is no ETR at this time.
Posted Aug 12, 2026 - 16:38 CDT

Update

Hello,

GLS/TEACH advised they are still attempting to isolate the issue at this time. They continue to troubleshoot. The tickets for each site is listed below:

Kiel Area School District - 12349637
Parkview School District - 12349633
Kewaskum School District - 12349638
Sauk Prairie School District - 12349641
Walworth J1 School District - 12349643
Oregon School District - 12349640

If you have any additional questions, please contact WiscNet NOC.
Posted Aug 12, 2026 - 13:34 CDT

Update

GLS/TEACH has opened up tickets with the following sites:

Kiel Area School District - 12349637
Parkview School District - 12349633
Kewaskum School District - 12349638
Sauk Prairie School District - 12349641
Walworth J1 School District - 12349643
Oregon School District - 12349640
These outages are involved in a larger outage that is currently being investigated by GLS/TEACH.

If you have any additional questions, please contact WiscNet NOC.
Posted Aug 12, 2026 - 11:01 CDT

Update

We are continuing to investigate this issue.
Posted Aug 12, 2026 - 11:00 CDT

Update

We are continuing to investigate this issue.
Posted Aug 12, 2026 - 10:49 CDT

Update

We are continuing to investigate this issue.
Posted Aug 12, 2026 - 10:40 CDT

Update

GLS/TEACH has opened up tickets with the following sites:

Kiel Area School District - 12349637
Parkview School District - 12349633
Kewaskum School District - 12349638
Sauk Prairie School District - 12349641
Walworth J1 School District - 12349643
Oregon School District - 12349640
These outages are involved in a larger outage that is currently being investigated by GLS/TEACH.

If you have any additional questions, please contact WiscNet NOC.
Posted Aug 12, 2026 - 10:27 CDT

Investigating

At 9:26 AM The WiscNet NOC has lost access to our device for the following sites:

Kiel Area School District
Parkview School District
Kewaskum School District
Sauk Prairie School District
Walworth J1 School District

Please verify power to your site and the network equipment. We will open a ticket with GLS/Teach tech support and the ticket numbers will be provided shortly.

If you have any additional questions, please contact WiscNet NOC.
Posted Aug 12, 2026 - 09:51 CDT
This incident affected: TEACH - Milwaukee (Kiel Area School District) and TEACH - Madison (Kewaskum School District, Oregon School District, Parkview School District, Sauk Prairie School District, Walworth J1 School District).