RTL8192CU wireless usb not working [SOLVED]

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jp734
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Joined: Sat 29 Mar 2014, 17:59

RTL8192CU wireless usb not working [SOLVED]

#1 Post by jp734 »

I have two computers and both have precise 5.7.1- kernel 3.9.11 - One is a HP 6744y and the other is an old Dell 4600 Pentium 4 2.8GHz. My goal is to have a working wireless on Dell.

When using the wireless usb adapter (RTL8192CU/RTL8188CUS) on the HP, it works like a charm and this is using the built-in driver. When using on Dell, it gets associated with the router but will not go online. Pinging the router doesn't do anything. It literally just sit still.

iwconfig shows the adapter connected to router with speed of 150 Mbps

So I thought I'd check what programs/libraries are installed on the HP and install it as well on Dell but this did not work neither. So at this point, the OS and programs installed on each pc are exactly the same except for FGLRX and P7ZIP which I don't think would cause the adapter not to work.

What am I missing? I don't think I need to download a driver from RealTek website coz I did not have to do that on the HP.
Last edited by jp734 on Wed 25 Mar 2015, 16:50, edited 1 time in total.
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rcrsn51
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Location: Stratford, Ontario

#2 Post by rcrsn51 »

The in-kernel version of RTL8192CU is well-known to be wonky with some adapters. See the (heated) discussion here.

That post has a vendor version of the driver for Precise.

What model adapter are you using?

Please report back.
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jp734
Posts: 119
Joined: Sat 29 Mar 2014, 17:59

#3 Post by jp734 »

lsusb gives me:

Bus: 001 Device: 004 ID: 0bda-8176 RealTek Semiconductor corp. RTL8188UCS 802.11n WLAN

I downloaded the .pet file from the link you gave and will try. Let you know.

Thanks
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rcrsn51
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#4 Post by rcrsn51 »

What is the brand name and model of your adapter - Linksys, Netgear, etc.

You may need to blacklist the in-kernel rtl8192cu driver using System > Bootmanager.
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jp734
Posts: 119
Joined: Sat 29 Mar 2014, 17:59

#5 Post by jp734 »

Wow. That pet file worked. connected at 150 Mbps. Thanks a lot rcrsn51. It's funny how it works on one but not on another. A small headache to pay though for the wonderful world of linux.

Thanks again.
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jp734
Posts: 119
Joined: Sat 29 Mar 2014, 17:59

#6 Post by jp734 »

Yeah I cant tell you what brand. I got it from ebay so it was not on original box. And Yes I did blacklisted rtl8192cu
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Semme
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#7 Post by Semme »

Aboard 528 I've got a Netis WF2116, ID [0bda:8178] Realtek working with the 8192cu driver from here.
>>> Living with the immediacy of death helps you sort out your priorities. It helps you live a life less trivial <<<
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