All systems are operational
Scheduled Maintenance
[SEWAN] Technical maintenance - 21.01.2026

Beginning: 21.01.2026 – 10.00 PM

Ending: 22.01.2026 – 03.00 AM

 

Impact: Few packet loss and SSL-VPN disconnection while switchover.

 

Dear Customer, Dear Partner,

 

Please be informed that our technical team will perform maintenance on firewall cluster 6.

During the two scheduled nights, you may experience brief packet loss and temporary SSL-VPN disconnections during the switchover.

No action is required on your side.

 

Thank you for your understanding.

 

Best regards;

 

SEWAN Technical Team

[SEWAN] Technical maintenance - 28.01.2026

Beginning: 28.01.2026 – 10.00 PM

Ending: 29.01.2026 – 03.00 AM

 

Impact: Few packet loss and SSL-VPN disconnection while switchover.

 

Dear Customer, Dear Partner,

 

Please be informed that our technical team will perform maintenance on firewall cluster 8.

During the two scheduled nights, you may experience brief packet loss and temporary SSL-VPN disconnections during the switchover.

No action is required on your side.

 

Thank you for your understanding.

 

Best regards;

 

SEWAN Technical Team

[SEWAN] Technical maintenance - 29.01.2026

Beginning: 29.01.2026 – 10.00 PM

Ending: 30.01.2026 – 03.00 AM

 

Impact: Few packet loss and SSL-VPN disconnection while switchover.

 

Dear Customer, Dear Partner,

 

Please be informed that our technical team will perform maintenance on firewall cluster 1.

During the two scheduled nights, you may experience brief packet loss and temporary SSL-VPN disconnections during the switchover.

No action is required on your side.

 

Thank you for your understanding.

 

Best regards;

 

SEWAN Technical Team

Past Incidents

Thursday 21st January 2021

General communicate service [SEWAN] Unexpected disturbances - 21.01.2021

Beginning: 21.01.2021 – 11.05 AM

Ending: 21.01.2021 – 11.46 AM

Impacts: External backbone network supplier DDOSed

 

Dear customer, dear partner,

Please note that since 16/01/2021, one of our backbone network supplier is experiencing DDOS attacks. Until this morning, all our failover systems have been able to mitigate their problems in order to not impact our services in any kind;

Nevertheless, since this morning 11.05AM, we have noticed that the attacks they are suffering were so intense that we experienced cascaded disturbances, mainly impacting outbound calls.

At 11.46AM, we could get a technical confirmation that the DDOS attacks were mitigated by our supplier. The situation is back to normal, and we are closely monitoring their activities in order to activate backup procedures if this happens again.

 

Best regards;

SEWAN Technical Team

Wednesday 20th January 2021

No incidents reported

Tuesday 19th January 2021

No incidents reported

Monday 18th January 2021

No incidents reported

Sunday 17th January 2021

No incidents reported

Saturday 16th January 2021

No incidents reported

Friday 15th January 2021

No incidents reported

Thursday 14th January 2021

No incidents reported

Wednesday 13th January 2021

General communicate service [SEWAN] General information 13.01.2021

***** UPDATE - 13.01.2021 - 9.25PM *****

At 9.25PM today, Telenet confirmed the situation was resolved.

   


Beginning: 13.01.2021 – 10.00 AM

Ending: on going

Impact: Telenet fiber down

 

Dear customer, dear partner,

 

Please note that since 10AM this morning, we have noticed partial disturbances on Telenet internet lines on some areas of Brussels.

Therefore, if you or your customer(s) experience internet/telephony issues, this may be the root cause.

 

At this moment, we have not received any official information that their problem is fixed.

 

SEWAN Technical Team

Tuesday 12th January 2021

No incidents reported

Monday 11th January 2021

No incidents reported

Sunday 10th January 2021

No incidents reported

Saturday 9th January 2021

No incidents reported

Friday 8th January 2021

No incidents reported

Thursday 7th January 2021

General communicate service [SEWAN] General information 08.01.2021

Beginning: 07.01.2021 – 11.54 PM

Ending: 08.01.2021 – 6.10 AM

Impact: Proximus fixed and mobile services impacted

 

Dear customer, dear partner,

 

Proximus informed us that one of their planned maintenance encountered an incident which generated disturbances on both their fixed and mobiel telephony.

 

Please find below their official communication:  


Some of our fixed and mobile services were impacted during the night of 7 to 8 January due to an intervention on a section of the voice infrastructure.

During the night of 7 to 8 January an intervention was planned on a section of the voice infrastructure. During the intervention an unexpected error occurred which impacted some of our fixed and mobile services. Some emergency centres in some provinces were also not reachable. The incident started at 23:54 and at 6:10 am we were able, together with our vendor, to correct the error. The situation is stable since then.

We are further investigating the technical cause of the unexpected error in order to define proactive remedies. We apologize for any possible inconvenience encountered to you and your end-customers.


 

SEWAN has not been impacted in any kind, but if you have received this morning complaints about Proximus beeing unavailable, this may be the reason.

 

SEWAN Technical Team

General communicate service [SEWAN] Unexpected disturbances - 07.07.2021

Beginning: 07.01.2021 – 11.38 AM

Ending: 07.01.2021 – 11.54 AM

Impact: Outbound call to Belgium mobile congested

 

Dear customer, dear partner,

 

This morning, we briefly experienced partial congestion on outbound calls to Belgium mobile, from 11.38AM till 11.54AM.

The reason is that we implemented a new technical route for national mobile into production, which unfortunately wasn't functioning as expected, despite prior test scenarios gave positive results.

 

We therefore immediately rolled back and take this new route into quarantine for analysis.

 

Best regards;

SEWAN technical team