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As soon as I do nmcli con up id <ESSID>, I experience some warnings/errors:

** (process:4841): WARNING **: async_got_type: could not read properties for /org/freedesktop/NetworkManager/ActiveConnection/5: Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist

** (process:4841): WARNING **: async_got_type: could not read properties for /org/freedesktop/NetworkManager/ActiveConnection/5: Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist

** (process:4841): WARNING **: async_got_type: could not read properties for /org/freedesktop/NetworkManager/ActiveConnection/5: Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist

Error: Connection activation failed: Creating object for path '/org/freedesktop/NetworkManager/ActiveConnection/5' failed in libnm-glib.

  • How can I fix this error?
  • What causes this?

I have (X)Ubuntu 13.10.

This might have to do something with some freedesktop related issues, I have with recently. Please have a look at it, too: Gnome programs (eog/gnome-terminal) have a slow start and produce a DBus.Error.NoReply Warning.

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polym
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1 Answers1

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I am not sure to what extent this is applicable, but I am running Debian 8 with XMonad as my window manager instead of Gnome, so I use nmcli/nmtui to connect to wireless networks. This is by no means a solution or an explanation, but merely a workaround:

  • When possible, use nmtui
  • Otherwise, run nmcli con edit id and set whatever fields are required (e.g. network password) and save persistent, then activate and quit.

Let me know if this works for you, I would be interested in finding an actual explanation and solution as well.

archaephyrryx
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