Nach Installation von VirtualBox funktioniert VPN und Hotspot nicht mehr

[jesmh]

Moin Moin,

nach der Installation von Virtualbox unter Kubuntu 23.04 (Neuinstallation vor wenigen Wochen) kann ich mich mit dem Host nicht mehr in einen fortisslvpn einwählen. Außerdem funktioniert der Hotspot nicht mehr, einwählende Geräte erhalten keine IP-Adresse. Das wiederum führe ich darauf zurück, dass der Hotspot selbst keine Verbindung zum Router (DHCP-Server) hat (der Laptop hat aber Internet, von dem aus der Hotspot kommt).

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sudo apt purge virtualbox

brachte keine Besserung.

Wo kann ich suchen gehen, dass VPN und Hotspot wieder laufen?
Ich Danke für Antworten.

[scottgus1]

Sorry, looks like we missed this one. Are you still having this problem?

[jesmh]

yes.

[scottgus1]

Thanks. Unfortunately, there's not enough information to begin diagnosing yet.

How do you "dial in" to this VPN?
What hotspot are you referring to?
What was the exact setup you had before installing Virtualbox?
Do you remember editing any of the multitudinous config files in Linux to change things when you installed Virtualbox?
There are up to 5 vbox*.sys files that get installed by Virtualbox on a Windows host, one of which is for the Bridged networking driver, and there is a Host-Only network adapter installed. Are there any such vbox*anything files left on your host's OS folders?

[jesmh]

Hi, thanks for your questions.

I know that there are infos missing, but I didn't know, which do you need.

The VPN auth is done by user & password and an public Certificate I got from the university.
I was referring to a hotspot set up using the laptop's wifi-card.
The exact set-up before installing Virtualbox was basically a fresh Kubuntu 23.04 installation plus my daily programms for PIM and office. Nothing special regarding network (and at all).

No, I didn't touched config files to set up Virtualbox.

I only found not human-readable vbox*-files. *.config-files containing virtualbox or vbox I only found two files:

• NatNetwork-Dhcpd.config

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  <?xml version="1.0"?>
  <DHCPServer networkName="NatNetwork" trunkType="whatever" IPAddress="10.0.2.3" lowerIP="10.0.2.4" upperIP="10.0.2.254" leasesFilename="/home/john/.config/VirtualBox/NatNetwork-Dhcpd.leases" networkMask="255.255.255.0">
    <Options>
      <Option name="1" encoding="0" value="255.255.255.0"/>
      <Option name="3" encoding="0" value="10.0.2.1"/>
      <Option name="6" encoding="0" value="10.0.2.1"/>
      <Option name="15" encoding="0" value="home"/>
    </Options>
  </DHCPServer>
  

• HostInterfaceNetworking-vboxnet0-Dhcpd.config

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  <?xml version="1.0"?>
  <DHCPServer networkName="HostInterfaceNetworking-vboxnet0" trunkName="vboxnet0" trunkType="netflt" IPAddress="192.168.56.100" lowerIP="192.168.56.101" upperIP="192.168.56.254" leasesFilename="/home/john/.config/VirtualBox/HostInterfaceNetworking-vboxnet0-Dhcpd.leases" networkMask="255.255.255.0">
    <Options>
      <Option name="1" encoding="0" value="255.255.255.0"/>
    </Options>
  </DHCPServer>
  

P.S.: This forum is missing in-line code option…