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The connection is established but there is no internet connection at all. My NIC is a Intel ultimate-n 6300. Sometimes it connects but very slow! I'm not really sure what commands i have read will work.

user201074
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1 Answers1

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There is a problem with some Intel wireless cards (that use the iwlwifi driver) and the Wireless N implementation on some routers. Often you can get the Wifi working well by simply disabling N.

You can try running the following commands. If these work, download this script and run it each time you boot up. You can set it up to run automatically if you'd prefer. Run these:

lsmod | grep iwlwifi

If you don't get anything out, then you aren't using the iwlwifi driver and the following steps will not work unless you replace "iwlwifi" with the driver in use.

If you do get something back, run these commands:

# Put eth0 down
sudo ifconfig eth0 down

# Remove iwlwifi module
sudo modprobe -r iwlwifi

# Reinstert iwlwifi module with n disabled
sudo modprobe iwlwifi 11n_disable=1

If these work, there is a script here you can use for the future: https://github.com/FreedomBen/handy-bash-scripts/blob/master/fixTheInternet.bash

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