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Hotspot Wi-Fi connected to my laptop works without connected to mobile data. What could be the reason? (lemm.ee)
submitted 2 years ago* (last edited 2 years ago) by to c/linux@lemmy.ml
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Title is self explanatory. For background, I am currently running Asahi Linux on my M1 MBP. Whenever I connected the hotspot without data being turned on, it somehow still worked like any regular wifi. I even ran several updates in the system and downloaded multiple apps in this wifi, which I find it amusing. But out of curiosity, I wanted to know from you guys that what could the reason be for this.

EDIT: So after following the advice of jet@hackertalks.com, I relized that the hotspot is using the network of my University's Wi-Fi, which explains why the hotspot worked even with the data turned off.

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[–] [S] 17 points 2 years ago* (3 children)

Ok, so after running traceroute, it seems that the hotspot is using the network of my university Wi-Fi, which my phone is connected with. EDIT: Thanks a lot! Forgot to thank you for the advice 😅

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  • [–] 9 points 2 years ago (3 children)

    It's interesting on it's own, since I do remember my android phone disconnecting from wifi when enabling the hotspot. If I understand it right, this type of wifi bridge requires two radios to work efficiently, but it may have changed in latest Wi-Fi standards. Curious nontheless.

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  • [–] 5 points 2 years ago (1 child)

    This was my thinking as well, I did not know that there are phones that can be connected to a wifi network while hosting their own wifi network 🤔 On my iPhone, the only way to achieve Internet on pc while phone is on wifi, is to connect the phone via USB to the PC and share the internet connection this way.

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  • [–] 2 points 2 years ago (2 children)

    Which phone is that? I thought that most phones could not create a hotspot and at the same time connect to a WiFi network.

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