Internet Timeouts with TP-Link TL-WN821N wireless usb stick - existing solutions dont work

I'm running Ubuntu12.04 and I'm trying to get a TP-Link TL-WN821N to work. The solution from Internet Timeouts with TP-Link TL-WN821N v2 wireless usb stick didn't work for me. Neither has anything else...

I've installed rtl8192cu as per instructions I found elsewhere to no avail.

The symptoms I am experiencing are: When I plug in the device the PC can see and connect to wireless networks fine. The network I'm using has internet access and the signal strength is pretty strong. I can't ping and I can't browse the internet (timeout).

Any ideas? I'm not sure what the next step would be or what information would be useful at this point.

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4 Answers

First of all, ensure you have the necessary prerequisites:

sudo apt-get install linux-headers-generic build-essential dkms git

Clone the updated driver with git:

git clone 

Set it up as a DKMS module:

sudo dkms add ./rtl8192cu-fixes

Build and install the driver:

sudo dkms install 8192cu/1.9

Refresh the module list:

sudo depmod -a

Ensure the native (and broken) kernel driver is blacklisted:

sudo cp ./rtl8192cu-fixes/blacklist-native-rtl8192.conf /etc/modprobe.d/

Let's not take any chances. Instruct Ubuntu to load the new driver when it starts up.

echo 8192cu | sudo tee -a /etc/modules

Reboot.

You're done.

_{Thanks to P. Varet for this awesome fix.}

6

@SirCharlo's solution not working for ubuntu 14.04.

Please follow this link for instructions:

Contents

1. Determine the chipset
2. Realtek RTL8188CUS and RTL8192CU chipsets (0bda:8176 and 0bda:8178)
3. Realtek RTL8723BE chipset
4. Realtek RTL8192EU chipset (0bda:818b)
5. Realtek RTL8812AU chipset (0bda:8812)

This driver package is an improved version of the driver package that the Maxxter company provided for a wireless dongle of theirs. The original driver only works in Xubuntu 12.04 and Linux Mint 13, but the improved version also works in Ubuntu 14.04 and Linux Mint 17.1.

Try this: After execute the two first steps reboot the pc. Continue with next steps. And if you have an error when execute "sudo dkms install 8192cu/1.9", you must change "1.9" for "1.10", it is because kernel was updated. This worked for me, I'm using Ubuntu 14.04.

I had the same problem and solved it by disabling the power management feature. Just follow the troubleshooting section over here

Gilad

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