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This happens with two different-vendor access points.

Internet disconnects while the nm-applet is showing connected.

Although, nm-applet shows that am connected and I got IP address but I even can't ping the router/my default gateway!!

So, I need to keep restarting the "/etc/init.d/network-manager" in order to work again just for a few minutes.

PS: The AP are working properly with my iPad, my Nexus 4 mobile and even with my brother's windows machine.

Relevant lspci output:

03:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 1000 [8086:0084]
    Subsystem: Intel Corporation Centrino Wireless-N 1000 BGN [8086:1315]
    Kernel driver in use: iwlwifi
    Kernel modules: iwlwifi

Kernel version: 3.2.0-37-generic

gertvdijk
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Mina Mohsen
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  • Welcome to Ask Ubuntu! Please include specific information in your question. To be able to answer your question, we'll need at least the following. What is the exact hardware in your PC? (post output of lspci -nnk | grep -iEA3 "(network|wireless|ethernet)") What do the logs of Network Manager tell you the time your connection is poor/interrupted? (inspect /var/log/syslog - if nothing, that's also valuable.) What kernel are you on and did you apply all system updates? (post output of uname -r) – gertvdijk Feb 06 '13 at 13:07
  • Please edit your question to provide more information. It's how this site works - it's not a discussion forum. And does this answer help you out? – gertvdijk Feb 06 '13 at 13:59

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