Connection problems, no Internet access

1. Rebooting your DSL router

Reboot your DSL router by switching the toggle switch on the back of the router off and on again. Then wait at least 30 seconds and check if your Internet access works again and the problem has been rectified.

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2. Checking your DSL router in detail

Is the “Power” LED on your DSL router lit?

No -> Check the power supply and the power connection.

Is the “DSL” LED on your DSL router lit?

No -> Remove the cable between the router and the telephone socket and reconnect it.

Is a micro filter connected to all telephones in your household?


No -> Remove all telephone cables that are not connected to a micro filter.

Is the “DSL” LED illuminated now?

Yes -> Continue with step "3. Continue with “Check you network connection”.

No -> Find the solution in the Support Community.

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3. Check your network connection

A) With wireless Internet access:
Set up you wireless Internet access again.

B) With cable Internet access:
Is at least one “Ethernet” or “LAN” lamp on your DSL modem illuminated?
No > Remove the cable between the router and the computer and reconnect it.

Are you using the cables supplied by us?
No > Connect the supplied cables.

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Insufficient range on your WLAN

A WLAN often has an insufficient range to cover several rooms or even storeys. If you have access problems, it is often helpful to change the position of the DSL router.

Source:  http://www.swisscom.ch/en/residential/help/loesung/connection-problems-no-internet-access.html