serious problem with wifi cannot connect anymore

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Hi

This problem is much more serious than my other one, since I only have
for coming days wifi available, however one laptop does not connect
anymore.

I am on Kubuntu 14.04 and the connection does not work neigher with the
plasma networkmananger nor with tdenetworkmanager.

I deleted a link from
/run/resolvconf/resolv.conf to /etc/resolv.conf

Then the following file was created  as /etc/resolv.conf 

# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1
search telefonica.net

Even as root I cannot anymore modify nor delete it, I wanted to set
again the link mentioned above but without success.

When I start tdenetworkmanager I obtain the following error (no idea
whether this related to the above problem)
any help is strongly appreciated since outwise I have to reinstall
everything.

Uwe Brauer 

Attachment: prob-network
Description: Binary data

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