All systems are operational
Scheduled Maintenance
[SEWAN] Technical maintenance - 16.02.2026

Beginning: 16.02.2026 – 10.00 PM

Ending: 17.02.2026 – 06.00 AM

 

Impact: Two short service interruptions of a few minutes affecting Network, VoIP and Hosting services during switchover.

 

Dear Customer, Dear Partner,

 

Please be informed that our technical team will perform an upgrade on two network core devices.

 

During the scheduled maintenance window, you may experience two short service interruptions lasting a few minutes during service failover between our two datacenters. This may temporarily affect firewall cloud, Sophia VOIP telephony and hosting services.

 

No action is required on your side.

 

Best regards,

[SEWAN] Technical maintenance - 17.02.2026

Beginning: 17.02.2026 – 10.00 PM

Ending: 18.02.2026 – 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 firewalls 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

[SEWAN] Technical maintenance - 18.02.2026

Beginning: 18.02.2026 – 12.00 AM

Ending: 18.02.2026 – 1.00 PM

 

Impact: Cloud firewall cluster 12 console not reachable

 

Dear Customer, Dear Partner,

 

Please be informed that our technical team will carry out maintenance on the firewall GUI (cluster 12).

During this maintenance window, the management console will not be accessible. No impact on production services is expected.

Thank you for your understanding.

 

Best regards;

 

SEWAN Technical Team

[SEWAN] Technical maintenance - 19.02.2026

Beginning: 19.02.2026 – 12.00 AM

Ending: 19.02.2026 – 1.00 PM

 

Impact: Cloud firewall cluster 13 console not reachable

 

Dear Customer, Dear Partner,

 

Please be informed that our technical team will carry out maintenance on the firewall GUI (cluster 13).

During this maintenance window, the management console will not be accessible. No impact on production services is expected.

Thank you for your understanding.

 

Best regards;

 

SEWAN Technical Team

Past Incidents

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

Wednesday 6th January 2021

No incidents reported

Tuesday 5th January 2021

No incidents reported

Monday 4th January 2021

No incidents reported

Sunday 3rd January 2021

No incidents reported

Saturday 2nd January 2021

No incidents reported

Friday 1st January 2021

No incidents reported

Thursday 31st December 2020

No incidents reported

Wednesday 30th December 2020

General communicate service [SEWAN] Unexpected disturbances - 30.12.2020

Beginning: 30.12.2020 – 3.44 PM

Ending: 30.12.2020 – 4.16 PM

Impact: General VoIP disturbances

 

Dear customer, dear partner,

 

Yesterday afternoon, we experienced a general disturbance on our VoIP network due to one of our media gateways which encountered a problem with its kernel module. This resulted in large delays in call setups, overloading the UDP buffers and eventually also limiting registrations.

 

As a mitigation, we’re splitting of the registration part of the routing part, this should make sure we don’t lose registrations when something happens on the routing part, and inverse.

 

All our apologize for the problems this may have caused.

 

Best regards;

SEWAN technical team

Tuesday 29th December 2020

No incidents reported