All systems are operational
Scheduled Maintenance
[SEWAN] Technical maintenance - 17.11.2025

Beginning: 17.11.2025 – 11.30 PM

Ending: 18.11.2025 – 02.30 AM

Impact: switchover on Sophia Voip plateform

 

Dear customer, dear partner,

 

We would like to inform you that a scheduled maintenance will take place on our Voice infrastructure (Sophia).

During this maintenance window, a short interruption of communications is expected.

We apologize for any inconvenience this may cause and thank you for your understanding.

No intervention is needed from your side.

 

Best regards;

[SEWAN] Technical maintenance - 21.11.2025

Beginning: 21.11.2025 – 00.00 AM

Ending: 21.11.2025 – 05.00 AM

Impact: none

 

Dear customer, dear partner,

 

EUROFIBER will perform a maintenance on our NNI at Leuven.

No impact is expected

No intervention is needed from your side.

Best regards;

 

SEWAN Technical Team

[SEWAN] Technical maintenance - 26.11.2025 - 28.11.2025

Beginning: 26.11.2025 – 10.00 PM

Ending: 28.11.2025 – 06.00 AM

Impact: max 1h of interruption

Dear customer, dear partner,

 

Eurofiber will perform a large-scale network software update that will improve the performance and future proofing of our network.

Your connection will be interrupted only one time, for 1 hour during this upgrade. If you have a redundant connection, they will ensure that it is not down at the same time as the primary one.

No intervention is needed from your side.

Best regards;

 

SEWAN Technical Team

Past Incidents

Sunday 23rd January 2022

No incidents reported

Saturday 22nd January 2022

No incidents reported

Friday 21st January 2022

No incidents reported

Thursday 20th January 2022

[SEWAN] Technical maintenance - 20.01.2022, scheduled 3 years ago

Beginning: 20.01.2022 – 11.45 PM

Ending: 21.01.2022 – 01.30 AM

Internal ref: DTCAB-2449

Impact: Disturbance of a maximum of 5 minutes of telephony

 

Dear customer, dear partner,

 

Please note that our technical team will perform a maintenance on the night of Thursday the 20th of January 2022, which will end at 1.30 AM the next morning.

 

During this timeframe, you may experience a maximum of 5 minutes of disturbances on your telephony systems.

 

No intervention is needed from your side.

 

Best regards;

SEWAN Technical Team

Wednesday 19th January 2022

No incidents reported

Tuesday 18th January 2022

No incidents reported

Monday 17th January 2022

No incidents reported

Sunday 16th January 2022

No incidents reported

Saturday 15th January 2022

No incidents reported

Friday 14th January 2022

No incidents reported

Thursday 13th January 2022

General communicate service [SEWAN] Unexpected disturbances - 13.01.2022

 

Beginning: 13.01.2022 – 3.22 PM

Ending: 13.01.2022 – 3.40 PM

Impact: Call disturbances

 

Dear customer, dear partner,

 

On 13.01.22 at 3.17 PM, our voice network handled a huge and unexpected amount of outbound calls which were providing from several sources, generating several thousands of CAPS (Call Attempt Per Second).

Despite our security mechanism immediately triggered, the behavior kept going on for long, which started to impact our Voice servers at 3.22 PM.

Source of unexpected calls were immediately discovered by our engineers, and were temporarily banned. Situation went back to normal at 3.40 PM.

In order to prevent this from happening in the future, our team improved the above-mentioned mechanism by limiting the number of CAPS per IP address by 100 every 5 seconds, after what the IP address will be temporarily banned.

 

Best regards

SEWAN Technical Team

Wednesday 12th January 2022

No incidents reported

Tuesday 11th January 2022

No incidents reported

Monday 10th January 2022

No incidents reported

Sunday 9th January 2022

No incidents reported