All systems are operational
Scheduled Maintenance
[SEWAN] Technical maintenance - 09.06.2026

Beginning: 09.06.2026 – 10.00 PM

Ending: 10.06.2026 – 01.00 AM

Impact: brief packet loss may occur  

Dear customer, dear partner,

 

We would like to inform you that we will be conducting redundancy tests on our xDSL/FTTH collection network.

During the maintenance window, brief packet loss may occur.

No intervention is needed from your side.

 

Best regards;

SEWAN Technical Team

[SEWAN] Technical maintenance - 10.06.2026

Beginning: 10.06.2026

Ending: 15.06.2026

Impact: Temporary suspension of eSIM orders

 

Dear customer, dear partner,

 

As part of an evolution of the Proximus platform towards the new SMDP+ infrastructure, a migration is scheduled during the weekend of 13 and 14 June 2026.

In order to avoid certain requests remaining blocked during this period, no eSIM orders can be submitted between 10 and 15 June inclusive (SIM swap and new line).

We therefore invite you to anticipate any needs prior to this period.

All already active lines, as well as porting requests and new mobile line orders using physical SIM cards, will remain fully operational.

Thank you for your understanding.

 

Best regards;

SEWAN Technical Team

Past Incidents

Thursday 22nd February 2024

[SEWAN] Technical maintenance - 22.02.2024 1.00AM and 23.02.2024 1.00AM, scheduled 2 years ago

Beginning: 22.02.2024 – 01.00 AM

Ending: 23.02.2024 – 02.00 AM

Internal ref: DTCAB-4753

Impact: possible packetloss for a few seconds  

 

Dear customer, dear partner,

 

Please note that our technical team will be performing maintenance on 22.02.2024 01.00AM and 23.02.2024 01.00AM. The aim is to increase our Internet bandwidth. During the first intervention, we will route internet traffic to other datacenters and isolate our main router. The switch back will be performed during the second intervention. Some packet loss may occur at these times.

 

No intervention is needed from your side.

   

Best regards;

SEWAN Technical Team

Thursday 15th February 2024

No incidents reported

Wednesday 14th February 2024

No incidents reported

Tuesday 13th February 2024

No incidents reported

Monday 12th February 2024

[SEWAN] Technical maintenance - 09/02 to 11/02, scheduled 2 years ago

Dear Partner,

 

a Fortinet OS security breach has been detected in our Fortinet Firewall platforms concerning the SSL-VPN. This is an "N-Day" vunerability, i.e. a global and major breach that impacts all customers on a very large number of deployed versions. Fortinet has issued a statement on the subject, on a dedicated page.

 

What does this mean? The detected breach is a vulnerability in the Firewall SSL VPN process, enabling a potential attacker (a Hacker) to execute unauthorized code or commands in the system. How does Sewan react to this vulnerability? As soon as the breach was detected, the security teams in Sewan's Technical Department took Fortinet's actions into account and planned an update of all OS versions deployed among Sewan's partners and customers.

 

We recommend that you temporarily disable SSL VPN on your Fortinet interface while our teams perform the upgrade.

 

Update planning :

• Cluster 1 : 09/02/2024 PM

• Cluster 2 : 11/02/2024 PM

• Cluster 3 : 11/02/2024 PM

• Cluster 4 : 09/02/2024 PM

• Cluster 6 : 11/02/2024 PM

• Cluster 7 : 11/02/2024 PM

• Cluster 8 : 09/02/2024 PM

• Cluster HDS : 09/02/2024 PM

This should only cause a small cut, in the worst case.

 

We remain at your disposal for any further information.

 

Sewan Technical Team

Sunday 11th February 2024

No incidents reported

Saturday 10th February 2024

No incidents reported

Friday 9th February 2024

No incidents reported

Thursday 8th February 2024

No incidents reported

Wednesday 7th February 2024

No incidents reported

Tuesday 6th February 2024

No incidents reported

Monday 5th February 2024

No incidents reported

Sunday 4th February 2024

No incidents reported

Saturday 3rd February 2024

No incidents reported

Friday 2nd February 2024

No incidents reported

Thursday 1st February 2024

No incidents reported