Some systems are experiencing issues
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 13th July 2021

No incidents reported

Monday 12th July 2021

No incidents reported

Sunday 11th July 2021

No incidents reported

Saturday 10th July 2021

No incidents reported

Friday 9th July 2021

No incidents reported

Thursday 8th July 2021

No incidents reported

Wednesday 7th July 2021

[SEWAN] Technical maintenance - 07.07.2021, scheduled 4 years ago

 

Beginning: 07.07.2021 – 10.00 PM

Ending: 08.07.2021 – 1.00 AM

Internal ref: DTCAB-2012

Impact: none

 

Dear customer, dear partner,

 

Please note that our technical team will perform a maintenance on 07.07.2021 as from 10.00 PM on International private peering links, both between Belgium and France and Germany and France.

The goal of this maintenance is to optimise and normalize timers in order to reduce convergence.

During this timeframe, no impact is foreseen. Calls routers over France may be interupted. New call attempts will work perfectly.

 

No intervention is needed from your side.

 

Best regards;

SEWAN Technical Team

Tuesday 6th July 2021

No incidents reported

Monday 5th July 2021

No incidents reported

Sunday 4th July 2021

No incidents reported

Saturday 3rd July 2021

No incidents reported

Friday 2nd July 2021

No incidents reported

Thursday 1st July 2021

No incidents reported

Wednesday 30th June 2021

sbcng.sewan.be (V5) [SEWAN] Unexpected disturbances - 30.06.2021

Beginning: 30.06.2021 – 2.37 PM

Ending: 30.06.2021 – 2.41 PM

Impact: V5 traffic disturbances

 

Dear customer, dear partner,

 

We experienced a breif overload on incoming sip messages, which made the processing of sip messages slower, with a maximum measured delays upto 7 seconds in signalling. A backup service took over the load, which restored normal functioning of the service.

In order to permanently fix this issue, we are planning both with our vendors several upgrades of our software, among others : Kamailio 5.5.0, Freeswitch 1.10.6 and rtpengine 10.0

Please remain certain that we take this matter seriously.

 

Best regards;

SEWAN technical team

Tuesday 29th June 2021

General communicate service [SEWAN] Unexpected disturbances - 29.06.2021

   

Beginning: 29.06.2021 – 11.22 PM

Ending: 29.06.2021 – 11.37 PM

Impact: Voice IN/OUT disturbances on V5

 

Dear customer, dear partner,

 

as from 11.22PM, we got alerted that some of our VoIP machines got overloaded on our SBCng plateform. Problem was fixed at 11.37PM. Further Investigations are on going.

 

Best regards;

SEWAN technical team