[SOLVED] Need Help Troubleshooting Internet Access.

[Sethanath]

Hi,

I have been using Fedora 17 for three days. I also have been using wired connection in order to access to internet. If I try to use my wireless connection, it would keep prompting me for pass phase, and it would keep promting me that way.

1. Can someone help me troubleshoot my wireless connection. I wireless USB Adapter is "USB Wireless Lan Adapter 150 Mbps LK-2122". -> http://www.amazon.com/Wireless-802-1...ywords=LK-2122

2. Both wireless and wired access are super slow.

P.S. I completed my software update. There is no more update available.

Thanks.

[oystercatcher]

I had the same problem with wireless but if I brought my laptop next to the wireless router it would connect. This was an hp laptop with a broadcom wireless card. So I think there is a driver problem.

Do you have other computers that are working fine on your network? Just trying to eliminate if you might have network problems.

[Sethanath]

The computer which has problems is a PC. My laptop running XP is connecting to the internet fine.

Thanks.

[smr54]

I have a page on troubleshooting wireless which might help. It covers taking NetworkManager out of equation to see if that's the issue.

http://home.roadrunner.com/~computer.../wireless.html

[Sethanath]

Thanks. I was so excited. I was able to follow your post perfectly.

However, the command below

wpa_supplicant -Dwext -iwlan0 -cwpa.conf

gave me the error message

"Device or resource busy wlan0: Failed to initiate AP scan".

Thanks so much.

P.S. I am answering from my XP laptop.

[smr54]

Ok, but up till then it works? That is, running iwlist wlan0 scan gives back a list of networks?

[Sethanath]

Yes, I saw my wireless router in there. Your list of commands work. I only have issue with that last piece.

Million Thanks.

[smr54]

I think I would try to reboot once more, making sure that NetworkManager isn't running. Hrrm, I should update the page, in Fedora 17, the command is probably systemctl disable NetworkManager.service. (Untested, but that fits the pattern)

Then reboot and try the wpa_supplicant command again. If it does succeed, and seems to connect, you will probably have to then run dhclient wlan0

[Sethanath]

Thanks. I did the following.

1. Reboot.
2. su -
3. systemctl disable NetworkManager.service
4. Reboot.
5. su -
6. ifconfig wlan0
7. ifconfig wlan0 up
8. iwlist wlan0 scan
7. wpa_supplicant -Dwext - iwlan0 -cwpa.conf

This time the last command never finish.

[smr54]

What do you mean, didn't finish?

[Sethanath]

The command

wpa_supplicant -Dwext - iwlan0 -cwpa.conf

is still executing still.

Thanks.

[Sethanath]

Help Help Help. Mine does not work yet.

[smr54]

In that case, I think the first thing I'd do is find out what type of card it is by running lspci and looking at the last few lines--one of them will give the card model. Then, I'd google fedora and the card number, or search these forums with the card as the search term.

I'd also try it with Ubuntu or Mint as both of them, I _think_ provide drivers for some of the closed source cards, and see if it works with them--then you have an idea if it's Fedora or Linux in general. You could use a live CD.

The one or two times I've run into something similar, was back when drivers for my particular card weren't very good, and I used the openwireless drivers, or something like that--but that was awhile ago.

Other possibilities--temporarily disable iptables with systemctl stop iptables.service and if that doesn't help, temporarily stop SELinux with setenforce 0. If neither of those help, then go to the nearest Starbucks or your public library or anywhere that has open wireless to see if it works there, which would indicate that the problem may be wpa_supplicant rather than the card.

[Sethanath]

Okay, my internet works last night. I disconnected my USB network card from the back of my computer, and reconnected it to the front of my same computer.

Now, it works.

Thanks.

[smr54]

Great. You can, as the originator of the thread, mark it solved by clicking the thread tools icon.