Comment 12 for bug 686333

I confirm that the driver for the Realtek RTL8192CE card is loaded by default now on Natty. However, the connection is very unstable.

On Maverick I used to work with the original Realtek driver (version 2.6.0005.1116.2010) from http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=48&PFid=48&Level=5&Conn=4&DownTypeID=3&GetDown=false&Downloads=true#RTL8188CE , which I compiled myself. Although this wasn't ideal, since I always had to recompile after a major upgrade, I had a working internet connection. However, after upgrading to Natty, my connection became very unstable. Very often, even though I am connected to wifi, I can't transmit any data. Less often, but still rather frequently, I get completely disconnected and have to reconnect.

Could this be related to a wrong configuration or the wrong kernel modules being loaded on Natty?

I am running Ubuntu Natty 11.04 on a Japanese Core i5 ThinkPad Edge 13.
lspci -v tells me the following:
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. Device 8195
Flags: bus master, fast devsel, latency 0, IRQ 17
I/O ports at 2000 [size=256]
Memory at f0400000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: rtl8192ce
Kernel modules: rtl8192ce

I tried downloading the most recent drivers from Realtek. Version 0003.0401.2011, which is supposed to work with "Linux driver for kernel 2.6.35 (and later)" completely messes up my installation and causes Kernel panic after rebooting. Version 2.6.0006.0321.2011, although designed for Kernel <= 2.6.34, works fine and improves stability a bit. It is still nowhere near sufficiently stable, though. Interestingly, after installing this version, lspci tells me that one additional kernel module is being loaded now: Kernel modules: r8192ce_pci, rtl8192ce