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πŸš€ Update July 2026: New Centro Business 3.0 Firmware "10.04.14" available β€” fixes the Alcatel/TCL Internet Backup Dongle issue. Details in the Release Note.

Manage Internet

In the router portal under Internet β†’ Basic settings, the status of the internet connection and various WAN settings are displayed and managed.


WAN Status​

ParameterDescription
WAN AccessShows the active internet access technology (XGS-PON, VDSL, 5G etc.)
Internet Backup / Mobile AccessShows whether Internet Backup is active and which device is being used
WAN Failover on Eth. 4Status of the failover via a secondary internet connection

WAN Reset​

The "WAN Reset" option resets the WAN interface of the router without restarting the entire router. After the reset, the Autosense process restarts, detects the correct WAN technology, and automatically re-establishes the connection.

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Internet access is briefly interrupted during the WAN Reset (approx. 30–60 seconds). Local settings are preserved.

When to perform a WAN Reset:

  • Internet connection is unstable or down
  • After a technology change (e.g. copper β†’ fibre)
  • Connection problems after a network interruption

DNS Settings​

In the basic configuration, two Swisscom DNS servers are configured on the Centro Business. If required, alternative DNS servers can be entered.

In the router portal under Internet β†’ Basic settings β†’ DNS:

  1. Primary DNS server β€” IP address of the preferred DNS
  2. Secondary DNS server β€” Fallback DNS in case the primary fails
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The Swisscom DNS servers are optimal for most use cases. Custom DNS servers are only needed for internal name resolution or special requirements.


PPPoE Settings​

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PPPoE settings are only visible with the "Fix IP" option.

The PPPoE account username and password are automatically configured by Swisscom via provisioning (Easy Activation). The credentials are displayed on this page so they can be used for the configuration of PPP Passthrough on the external gateway.


Remote Access from the Internet​

This option allows the techadmin access to be enabled so that an IT partner can remotely access the router.

Setup:

  1. Under Internet β†’ Basic settings β†’ Remote access, first define and save a password for the techadmin
  2. Enable the Remote access option
  3. Select the desired duration for remote access

➜ Details: Remote access to the router portal


Additional Internet Functions​

FunctionDescriptionLink
DynDNSFixed hostname with dynamic IPDynDNS
Internet BackupFailover via mobile networkInternet Backup
WAN FailoverFailover via secondary ISPWAN Failover

FAQ – Manage Internet​

What needs to be configured for internet access to work?

The basic configuration for internet access is part of the internet subscription and is managed by Swisscom. No manual configuration is required.

Are PPPoE connections regularly interrupted?

Yes. Approximately once a week, the PPPoE session is disconnected by the RADIUS for a few seconds (every 7–8 days, between 01:00 and 05:00). This serves the load balancing of approximately 64,000 PPPoE sessions across the ISG servers in Switzerland.

Is the internet access protected against attacks?
  • With the integrated Firewall, the router is protected against ping and port scanning attacks.
  • In the event of DDoS attacks, the router and LAN infrastructure remain protected; however, existing connections may be affected.
When should a WAN Reset be performed?

A WAN Reset is useful in the following cases:

  • Unstable or failed internet connection
  • After a technology change
  • Connection problems after network interruptions

The reset only resets the WAN interface β€” all local settings are preserved.

Are PPP internet connections (with Fixed IP option) regularly interrupted?
n nnYes. Approximately once a week, the PPPoE session is interrupted by the RADIUS server for a few seconds.nn- Time window: approx. every 7–8 days, between 01:00 and 05:00n- Duration: a few seconds (automatic reconnect)nn**Why?**nnSwisscom operates approx. 64,000 PPPoE sessions on 12 ISG servers in Switzerland. Since PPP sessions are static (they remain on the ISG where they initially logged in), an imbalance would occur without periodic disconnects.nnThe so-called "Max-Session-Timer" forces a brief interruption so that:n1. Load balancing: Sessions are evenly distributed across all 12 ISGs, systematically preventing overload on individual servers.n2. Maintenance: Swisscom can cleanly decouple affected sessions when performing maintenance on individual ISG instances (hardware, software, configuration).nn:::tipnThis interruption only affects connections with the "Fixed IP address" option (PPPoE). Standard DHCP connections are not affected.n:::n

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