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Realtek wireless RTL8191SEvB on Fedora 15 and 16

asked 2011-11-15 14:34:51 -0500

Saeed gravatar image

updated 2011-11-19 02:24:43 -0500

I have this Realtek wireless card (RTL8191SEvB) on my Thinkpad and I can't get it to work properly. I mean it works but sometimes it's really a pai; it goes down constantly and keeps asking for network password although it's correct and saved in NetworkManager.

Currently I am running the driver from Realtek (92cesedelinuxmac80211_0004.0816.2011.tar.gz) on Fedora 15 with Kernel 2.6.38 (to be exact: I have tried Kernel 2.6.40 on Fedora 15 and 16 and the card is recognized by the system and connects to networks but I still have the disconnection issue and it's worse than using realtek's driver.

I am providing parts of my /var/log/messges to give you more tips of what's happening. (link:

output for lspci:

03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8191SEvB Wireless LAN Controller (rev 10)

output for lsmod | grep rtl:

rtl8192se 84861 0

rtlwifi 97650 1 rtl8192se

mac80211 201962 2 rtl8192se,rtlwifi

cfg80211 116073 2 rtlwifi,mac80211

As you see in the messages file, the wireless connects and disconnects repeatedly. The network was stable at that place and signal strength was acceptable ( I had other machine running there and online without network problem).

How can I get rid of the disconnections? I wouldn't mid upgrading to Fedora 16 if it's better supported there ( I mean if it really works there).

Update: Solution

As Soumya Suggested in the answers, removing/stopping NetworkManager and using wicd solved the problem.

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3 Answers

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answered 2011-11-16 00:40:50 -0500

SoumyaC gravatar image

updated 2011-11-18 15:21:17 -0500

Try and use wicd rather than NetworkManager

Remove all instances of NetworkManager from your box.

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Ok one after the other, Firstly for bad password : Remove all instances of NetworkManager from the School system and try with wicd, if not you can try uninstalling wicd and installing it back again. Network manager plays with wpa_supplicant process, so I guess that can cause the problem.

SoumyaC gravatar imageSoumyaC ( 2011-11-17 13:03:51 -0500 )edit

2ndly for your not getting IP address from DHCP because your school network may have Mac filtering switched on and your wireless card mac address is not entered in that.

Try these two suggestions, if nothing works let me know ... we can again brainstorm. :)

SoumyaC gravatar imageSoumyaC ( 2011-11-17 13:07:00 -0500 )edit

If the answer satisfies and solves your question can you just accept the answer so that everybody gets the correct solution from this question.

SoumyaC gravatar imageSoumyaC ( 2011-11-19 02:25:16 -0500 )edit

answered 2012-06-15 12:50:00 -0500

this post is marked as community wiki

This post is a wiki. Anyone with karma >750 is welcome to improve it.

I also faced a problem on Fedora 17 with RTL 8187 wireless net card. it can find the wifi signal and also can match the wpa passord. but it get a low speed evenif near my router. i ping the gateway it reply on and off. if i switch to fedora 16 or windows it works well. i think the most possible problem is about the driver.

i also try to download the source code from official website. but when i compile it . it show me 2 error messages

who can help me to work out the problem? wait the kindly help!

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answered 2011-11-16 00:36:27 -0500

DMB4132 gravatar image

Try using anything else rather than NetworkManager for managing the wireless and see if the problem persists.

I'd try using F16 live distro and check if the wireless is better supported there...

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Asked: 2011-11-15 14:34:51 -0500

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Last updated: Jun 15 '12