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Firmware Release Notes

Find details on past and current firmware versions here.

Centro Business 3.0​

Router Firmware 10.04.12 (B41+) - March 2026

➜ Download

Announcement​

caution
Action Required for PPP-Passthrough​

In the router portal, a notification has been added regarding the future decommissioning of PPP-Passthrough. Customers are informed that switching to one of the recommended alternative solutions such as DMZ or
IP-Passthrough is mandatory.

New Features​

New Telephony Platform​

This firmware ensures that technical migrations to the new telephony platform in the InOne KMU / beem Office environment are enabled. (No customer impact)


Optimizations to LAN & DMZ Firewall​

The firewall on the Centro Business 3.0 has been completely redesigned. The goal of these adjustments is to prevent unprotected router configurations while further increasing the security and stability of the Centro Business 3.0.

  • The firewall now only offers the operating modes Strict (default) or Custom.

  • The previous OFF mode is now intentionally only available as a Custom configuration to be performed by users (expert function).

  • For each "firewall rule", the protocol can now be defined between Any or ICMP, GRE, AH, ESP.

warning
Important:​

A firmware update or a backup & restore (CB 2.0 → CB 3.0 or CB 3.0 → CB 3.0) does not change the existing firewall behavior or the configured firewall rules. However, with the B41 release (version 10.04.07.0006 and later), previous operating modes such as "Balanced", "OFF", or "CUSTOM" are automatically assigned to the "Custom" mode. Further details can be found under "CB3.0 New Firewall Behavior". Additionally, the display of firewall settings has been redesigned and optimized.


Increased Cybersecurity Requirements via EU Regulation "RED-DA"​

The regulation in force since 01.08.2025 has led to the following measures:

  • Increased password complexity requirements for
    • WLAN (16 instead of 10 characters)
    • VPN (12 instead of 10 characters)
    • Router portal "admin" (12 instead of 10 characters)
  • Removal of the "Central USB Storage Device" function
  • Implementation of further security improvements

→ → The user will only be prompted to change the password length in the router portal if the previous configuration is modified. This can be canceled, but it is not recommended.


For illustration: Theoretical duration of a brute-force attack to crack the password: - 8 characters with 4 types = 30 min

  • 10 characters with 4 types = 5 months
  • 16 characters with 4 types = 92 billion years

Assistance for Password Strength​

To improve general security, a display has been integrated into the password fields that evaluates the complexity of the chosen password (from weak to strong).

tip
Use a password that meets at least the following criteria:​
  • min. 12 characters (for WLAN min. 16 characters)
  • at least one uppercase letter
  • at least one lowercase letter
  • at least one number
  • at least one special character

Removed Features​

danger
Removal of the "Central USB Storage Device" function​

For security and compatibility reasons, this obsolete function is being removed from the router portal.
Details can be found under Central USB Storage Device


Fixed Bugs​

Firewall & Port Configuration:​

An issue was fixed where port 443 was incorrectly blocked by the firewall after a firmware update. Manual adjustment of firewall rules to restore functionality is no longer required after this patch.

System Identification:​

A bug was corrected that caused the router's serial number to be incorrectly reset to the default value "SN1" under certain conditions. Correct hardware identification is now permanently guaranteed.

Port Forwarding:​

Occasionally, port forwardings did not work when the router switched to Internet Backup mode. (CB-11016)

TV Host:​

In certain cases, a freeze of the image occurred after changing channels. (CB-11291)

Security:​

Various security vulnerabilities have been closed.

Router Firmware 10.04.10 (B41) - January 2026
caution
Important Information​

This version is replaced by firmware 10.04.12. All updates from version 10.04.10 are included in the 10.04.12 release notes.

Router Firmware 10.04.04 (B40)

Publication/Introduction: May 2025 ➜ Download img

Preparation​

New Telephony Platform**​

The firmware ensures that test phases and technical migrations with a new telephony platform in the InONE SME environment are made possible. (No customer impact)


New Functions​

beemNet​

With the introduction of the new security offering at Swisscom B2B, the router portal indicates that DynDNS and Port Forwarding cannot be used, or can only be used after prior definition of corresponding security rules, when beemNet is activated, depending on the selected Security Edition. Further information can be found at: www.swisscom.ch/beem

Switching the Entire Mesh WLAN On and Off​

(only in combination with Business WLAN Box) The firmware now supports central control of the Mesh WLAN via the WLAN button on the Centro Business 3.0. This allows the visible WLAN in the entire Mesh network (incl. Business WLAN Box) to be switched off or back on.

DynDNS​

The option for the custom DynDNS URL now also supports HTTPS. (CB-10790)


Fixed Bugs​

GRE Tunnel​

GRE Tunnel: When a GRE tunnel was used with a security gateway/firewall behind the Centro Business 3.0, this traffic showed poor performance. (CB-9699)

IPSec VPN​

When an IPSec VPN tunnel was used with a security gateway/firewall behind the Centro Business 3.0, this traffic showed poor performance (approx. 500MB). (CB-10403)

QoS​

With XGS-PON, an error in QoS handling was resolved. (CB-9712)

Business WLAN Box:​

Various improvements in the wizard and Mesh technology. (CB-9624, CB-9978, CB-10000, CB-10319, CB-10418)

Older Firmware Versions

Centro Business 2.0​

Router Firmware 9.52.20 (B19)

Publication/Introduction: November 2025 / Q1-2026 ➜ Download


Announcement:​

caution
Action required for PPP Passthrough​

The router portal now draws attention to the future discontinuation of PPP Passthrough. Customers are informed that switching to one of the recommended alternative solutions such as DMZ or IP Passthrough is mandatory.

New Functions​

New Telephony Platform​

This firmware ensures that technical migrations to the new telephony platform in the InOne SME / beem Office environment are made possible. (No customer impact)

DynDNS​

The option for the custom DynDNS URL now also supports HTTPS. (CB-10790)

Assistance with Password Strength​

To improve general security, a display has been integrated into the password fields that evaluates the complexity of the selected password (from weak to strong).

tip
Use a password that meets at least the following criteria:​
  • min. 12 characters
  • min. one uppercase letter
  • min. one lowercase letter
  • min. one number
  • min. one special character

Fixed Bugs​

VoIP​

In rare cases, the INVITE was not answered by the router, leading to call termination. (CB-11227)

TV Host​

In certain situations, an image freeze occurred after changing channels. (CB-11479)

Internet Backup: When WAN ETH failover was activated and the Internet Backup stick was subsequently plugged in, a faulty state occurred: Failover no longer worked and the WAN ETH failover option could not be deactivated. (CB-10969)

Security​

Various security gaps were closed.

Router Firmware 9.52.18 (B18)

Publication/Introduction: May 2025 ➜ Download img

Preparation​

New Telephony Platform​

The firmware ensures that test phases and technical migrations with a new telephony platform in the InONE SME environment are made possible. (No customer impact)

New Functions​

beemNet​

With the introduction of the new security offering at Swisscom B2B, the router portal indicates that DynDNS and Port Forwarding cannot be used, or can only be used after prior definition of corresponding security rules, when beemNet is activated, depending on the selected Security Edition. Further information can be found at: www.swisscom.ch/beem

Fixed Bugs​

  • Backup/Restore: Firewall rules are restored. (CB-10163)
  • Missing notification when replacing the SFP module added. (CB-9145)
  • DECT: Optimization of the display of missed calls on DECT handsets (CB-6280)
Router Firmware 9.52.14 (B17)

Publication/Introduction: November 2023

New Functions​

  • Internet Backup: The firmware supports the replacement product for the USB failover Internet Backup stick (Alcatel IK41VE1).

Fixed Bugs​

  • WAN IP: In rare cases, the router does not obtain a WAN IP address after a restart. (CB-8145)
  • ATA: When the Centro Business 2 switches to Internet Backup, incoming calls to the analog telephone interface do not work. (CB-8801)
  • Backup & Restore: Certain settings are not saved in the backup file. (CB-8742)
  • USB Internet Backup: On the local web portal, the timestamp for Internet Backup is incorrectly indicated in UTC instead of local time. (CB-8406)
  • Change Web Portal Password: The local web portal password cannot be changed if the new password contains a "0". (CB-9133)
  • LAN Port 1: When the DMZ option is deactivated, Swisscom TV on LAN Port 1 does not work. (CB-8925)
  • Smart Business Connect Telephony: One channel per number via SIP-TA: The number of simultaneous calls (incoming or outgoing) was corrected to 1 active call per configured telephone number. (CB-8737)
  • Security: Various security gaps were resolved. (CB-8448, CB-7551, CB-8414, CB-8556)
  • General: Various stability problems resolved
Older Firmware Versions

FAQ - Firmware Release-Note​

Where can I see the current schedule during a firmware rollout phase??

Depending on the router model, Swisscom plans 1-2 rollouts per year. Routers are usually updated in tranches Tuesday through Thursday during the night (between 2:00 - 6:00) via "Device Management". This leads to a connection interruption of approx. 10 minutes. The Centro Business 2.0 / 3.0 Rollout Plan img is published accordingly.

info

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