Flaemmli

Great that it works and have fun with the TV-Box.

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@Flaemmli wrote:
Can you tell me if I can disconnect it myself or if I have to call

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Which router or internet box do you have?

https://www.swisscom.ch/de/privatkunden/hilfe/geraet/internet-router.html

In any case, in the router (Internet box) menu you have to give different names for the 2.4 GHz and 5.0 GHz so that you can see the difference when you select WLAN on the mobile device.