tenthilltoys
Posts: 4
Joined: Thu Jan 30, 2014 1:46 am

Re: WiFi Issues ? Start here !

Fri Mar 28, 2014 11:06 am

Thankyou MrEngman so much all is working will now go onto other things for this little beauty.

Peter

MrEngman
Posts: 3849
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: WiFi Issues ? Start here !

Fri Mar 28, 2014 11:14 am

tenthilltoys wrote:Thankyou MrEngman so much all is working will now go onto other things for this little beauty.

Peter
That's good to hear, have fun with your Pi.


MrEngman
Simplicity is a prerequisite for reliability. Edsger W. Dijkstra

Please post ALL technical questions on the forum. Please Do Not send private messages.

iatethepie
Posts: 1
Joined: Tue Apr 01, 2014 2:15 am

Re: WiFi Issues ? Start here !

Tue Apr 01, 2014 2:53 am

Since purchasing my first Pi a couple weeks ago, WiFi issues have been haunting me to no end, but I'm glad to say I'm finally up and running thanks to troubleshooting guides like this one. :)

As it turns out, the solution to getting my Edimax 7811Un running stably was something I haven't seen mentioned anywhere: switching the 2.4GHz transmitter on my access point to 20MHz channels, (instead of 40MHz or 20/40MHz auto.) I couldn't find any indication that running with wide channels was causing problems, but until switching to 20MHz, open connections would slow to a crawl and packets would often get lost on their way from the router to the Pi.

If anyone else runs into a similar issue, hopefully this proves to be helpful.

(Other resources that proved especially useful when ruling out possible causes: "Troubleshooting Power Problems" @ eLinux Wiki & disabling power-saving features of the 8192cu module @ XBMC Hub)

Ray Maguire
Posts: 1
Joined: Mon Jun 23, 2014 4:54 pm

Re: WiFi Issues ? Start here !

Thu Aug 21, 2014 4:46 pm

I have read all the posts on here but, do not know what is wrong with my WiFi.
I am using Rasberian Wheezy, with a RT5370 Wireless Adapter (Panda)

Would someone tell me where to look, I do not see the problem...

The following is a list of outputs my Pi.

pi@raspberrypi ~ $ lsusb
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB Bus 001 Device 005: ID 148f:5370 Ralink Technology, Corp. RT5370 Wireless Adapter Bus 001 Device 006: ID 3938:1031 Bus 001 Device 007: ID 248a:8566

pi@raspberrypi ~ $ lsmod
Module Size Used by
snd_bcm2835 19584 0
arc4 1684 2
rt2800usb 17425 0
rt2800lib 80336 1 rt2800usb
rt2x00usb 11661 1 rt2800usb
rt2x00lib 44907 3 rt2x00usb,rt2800lib,rt2800usb
snd_soc_bcm2708_i2s 6194 0
regmap_mmio 2818 1 snd_soc_bcm2708_i2s
mac80211 329957 3 rt2x00lib,rt2x00usb,rt2800lib
snd_soc_core 127841 1 snd_soc_bcm2708_i2s
snd_compress 8259 1 snd_soc_core
regmap_i2c 1661 1 snd_soc_core
cfg80211 212241 2 mac80211,rt2x00lib
snd_pcm_dmaengine 5505 1 snd_soc_core
evdev 10661 6
regmap_spi 1913 1 snd_soc_core
joydev 9257 0
crc_ccitt 1541 1 rt2800lib
snd_pcm 83845 3 snd_bcm2835,snd_soc_core,snd_pcm_dmaengine
snd_page_alloc 5132 1 snd_pcm
rfkill 19784 2 cfg80211
snd_seq 55484 0
snd_seq_device 6469 1 snd_seq
snd_timer 20998 2 snd_pcm,snd_seq
leds_gpio 2079 0
led_class 4118 2 leds_gpio,rt2x00lib
snd 62252 7 snd_bcm2835,snd_soc_core,snd_timer,snd_pcm,snd_seq,snd_seq_device,snd_compress

pi@raspberrypi ~ $ ifconfig -a
eth0 Link encap:Ethernet HWaddr b8:27:eb:89:bd:d0
inet addr:192.168.1.108 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1855 errors:0 dropped:0 overruns:0 frame:0
TX packets:1432 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1608090 (1.5 MiB) TX bytes:182308 (178.0 KiB)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

wlan0 Link encap:Ethernet HWaddr 7c:dd:90:3e:e1:6d
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:520 errors:0 dropped:0 overruns:0 frame:0
TX packets:520 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:58760 (57.3 KiB) TX bytes:80600 (78.7 KiB)

rzky
Posts: 3
Joined: Mon Sep 08, 2014 11:16 am

Re: WiFi Issues ? Start here !

Mon Sep 08, 2014 11:34 am

stuck at step 3. running ifconfig -a doesn't show a wlan0. what should i do next? i'm using a KexTech USB Wireless Adapter (RTL8188EUS). any help would be really appreciated. thx!

step 1, run lsusb. the device seems to be detected (the last one):

Code: Select all

Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. 
Bus 001 Device 004: ID 0bda:0179 Realtek Semiconductor Corp.
step 2, run lsmod. have no idea what to look:

Code: Select all

Module                  Size  Used by
fb_ili9325              5102  0 
fbtft_device           30411  0 
fbtft                  31558  2 fb_ili9325,fbtft_device
syscopyarea             2999  1 fbtft
sysfillrect             3294  1 fbtft
sysimgblt               2124  1 fbtft
fb_sys_fops             1435  1 fbtft
snd_bcm2835            19576  0 
snd_soc_bcm2708_i2s     6170  0 
regmap_mmio             2818  1 snd_soc_bcm2708_i2s
snd_soc_core          146249  1 snd_soc_bcm2708_i2s
snd_compress           12594  1 snd_soc_core
regmap_i2c              1661  1 snd_soc_core
snd_pcm_dmaengine       5505  1 snd_soc_core
regmap_spi              1913  1 snd_soc_core
snd_pcm                83845  3 snd_bcm2835,snd_soc_core,snd_pcm_dmaengine
snd_page_alloc          5140  1 snd_pcm
snd_seq                55476  0 
snd_seq_device          6465  1 snd_seq
snd_timer              20981  2 snd_pcm,snd_seq
leds_gpio               2079  0 
led_class               4373  1 leds_gpio
snd                    62252  7 snd_bcm2835,snd_soc_core,snd_timer,snd_pcm,snd_seq,snd_seq_device,snd_compress
spi_bcm2708             8111  0
step 3, run ifconfig -a. no wlan0. also tried running sudo apt-get install firmware-realtek. no use. already the newest version. rebooted several times as well. still the same.:

Code: Select all

eth0      Link encap:Ethernet  HWaddr b8:27:eb:58:09:4e  
          inet addr:10.136.130.166  Bcast:10.136.135.255  Mask:255.255.248.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:18782 errors:0 dropped:0 overruns:0 frame:0
          TX packets:923 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1452033 (1.3 MiB)  TX bytes:156701 (153.0 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

csmwalkabout
Posts: 3
Joined: Thu Aug 21, 2014 12:01 pm

Re: WiFi Issues ? Start here !

Thu Oct 02, 2014 1:30 am

I have had immense trouble getting reliable WIFI with raspi model b+ and RTL8188CUS adaptor. This performs faultlessly in archlinux with a recent kernel 3.16 or so but as I wanted to use VDR live this was problematic.

Best solution rather than all the above is to upgrade the kernel:

Use this kernel - you need to do some symlinks but otherwise works well
https://www.dropbox.com/sh/j4m16akm7dev7c6/AbzVVFacDY

Can I recommend that raspbian releases an updated kernel as default?

Thanks. - Hope this helps.

gioPit
Posts: 15
Joined: Sun Nov 23, 2014 10:41 pm

Re: WiFi Issues ? Start here !

Tue Dec 02, 2014 10:40 pm

I'm getting troubles configuring an RT5370 adapter as access point. The problem is that hostapd or ifconfig freezes until I unplug the adapter... any clue?

itsmedoofer
Posts: 359
Joined: Wed Sep 25, 2013 8:43 am

Re: WiFi Issues ? Start here !

Wed Dec 03, 2014 12:25 pm

Hi,
gioPit wrote:I'm getting troubles configuring an RT5370 adapter as access point. The problem is that hostapd or ifconfig freezes until I unplug the adapter... any clue?
The rt2800usb driver that this uses seems to be flaky at best, I get high CPU usage and poor throughput, others have drop outs...it could be related... The usual advice is turn off power management but I think in later releases its off by default....

The other thing to try is using an older release of Rasbian, I would suggest at lest prior to September, but maybe last Xmas see if it works with that...

rtl8188cus based cards work fine in my experience, £3 for a cheap one to try on fleabay ...

gioPit
Posts: 15
Joined: Sun Nov 23, 2014 10:41 pm

Re: WiFi Issues ? Start here !

Wed Dec 03, 2014 6:03 pm

Hi,
The usual advice is turn off power management but I think in later releases its off by default....
how do I check if it is on or off and in case to turn it off?
The other thing to try is using an older release of Rasbian, I would suggest at lest prior to September, but maybe last Xmas see if it works with that...
Couldn't I just downgrade the specific module? I mean, is there an easy way to do that or it's better to download a clean image of last xmas?

Thank you.
(PS: I also wrote here but unfortunately had no replies http://www.raspberrypi.org/forums/viewt ... 28&t=92956 )

Blasted
Posts: 2
Joined: Sat Jan 31, 2015 9:50 pm

Re: WiFi Issues ? Start here !

Sat Jan 31, 2015 9:53 pm

I'm having trouble with this as well, since I updated to Kodi.

The dongle is recognized, wlan0 shows up (curiously, it says "dropped: 1"). when i do sudo vi /etc/network/interfaces all I see is a empty file, is this normal?

What happens: on RaspBMC settings, I set up the wifi connection and press update now. Don't have wifi. Password is correct, the "Scan Networks" setting works fine, the wifi connection is working fine... I dont know, what can this be?

lilstampy118
Posts: 9
Joined: Mon Feb 23, 2015 7:22 pm

Re: WiFi Issues ? Start here !

Mon Feb 23, 2015 7:25 pm

I have tried everything using Kernel and the GUI, I opened the web browser and it kept having an error, what is wrong.

lilstampy118

Raspberry pi B+
Latest Raspberien
please help others when needed, that would be kind

DirkS
Posts: 9936
Joined: Tue Jun 19, 2012 9:46 pm
Location: Essex, UK

Re: WiFi Issues ? Start here !

Mon Feb 23, 2015 9:46 pm

lilstampy118 wrote:I have tried everything using Kernel and the GUI, I opened the web browser and it kept having an error, what is wrong.

lilstampy118

Raspberry pi B+
Latest Raspberien
Not much to o on, I'm afraid.
Please create a new topic (you're more likely to get a response).
Give as much information as possible:
* exact error
* explain what you mean by 'tried everything using kernel and the gui' (I for one have no idea what you mean)
* OS / Distro (including if on Noobs) including version
* details about wifi dongle
* model Pi
...

hardikgohil99
Posts: 2
Joined: Wed Feb 04, 2015 12:18 pm

WiFi hotspot with static IP

Mon Apr 06, 2015 8:39 am

Hello, i am new to this need your help,
raspberry pi B+ and edimax wifi adapter EW-7811Un
i have installed raspbian on SD card
and used this link for some setup - https://github.com/thgh/pilon
when i try to configure the adapter the 2nd IP is getting generated for the same raspberry pi that is one problem,
after that i reflush the card and assigned static IP to RPi , after that configured edimax adapter than only 1 ip is used
but my problem is how can i forward/redirect the traffic coming on port 80 and 443 to the pi (fix IP) ????
plz rply ASAP....

WolfgangSwitzerland
Posts: 1
Joined: Fri Apr 10, 2015 3:28 pm

Re: WiFi Issues ? Start here !

Sun Apr 12, 2015 7:33 pm

please add the following checkpoints to your checklist:

1. activate in etc/network /interfaces only eth0 or wlan0 automatically (auto eth0; or auto wlan0) otherwise the second connection will answer requests from the first.
2. Windows disables bindings to urls on servers (e.g. samba on the raspberrypi) after 15 minutes of unused. That might be the reason for some troubles with connections and is not a eth or wlan problem.
see description behind the link
Laufwerksverbindungen unter Windows (XP…W8)
http://www.its05.de/computerwissen-comp ... e_tre.html

geog_k
Posts: 1
Joined: Mon Apr 13, 2015 6:42 pm

wlan vs eth

Wed Apr 15, 2015 6:45 pm

I can not bring up the wlan (raspbian compatible usb-stick) without a ethernet connection. Both are set to static IP address. I already have tried different configurations of /etc/network/interfaces. Without success.

Thanks for your reply.

ajinkyax
Posts: 1
Joined: Thu Apr 16, 2015 12:28 pm

Re: WiFi Issues ? Start here !

Thu Apr 16, 2015 12:38 pm

Im using COMFAST wifi adapter WU810n. But its not detecting up in `lsusb` command.

N7QNM
Posts: 5
Joined: Sun Apr 19, 2015 4:30 pm

Re: WiFi Issues ? Start here !

Sun Apr 19, 2015 5:12 pm

HELP! I've got two PI Bs, and had a NetGear N150 dongles running just fine. Then, I added an Access Point (to connections better in a rather large home) AND did "update/upgrade all", and now, my dongles won't talk. I tried disabling the new Access Point, and that had no effect. I ALSO tried using the dongle in a (Windows) laptop and it lets me connect fine (using the new Access Point and not). Relevant details below - note the dropped packets in ifconfig.

ANY help or pointers would be appreciated!

Clay Jackson
clayj@nwlink.com

UNAME
Linux PROSSR 3.18.7+ #755 PREEMPT Thu Feb 12 17:14:31 GMT 2015 armv6l GNU/Linux

/etc/network/interfaces
auto lo
iface lo inet loopback
#iface eth0 inet dhcp
#iface eth0 inet static
# address 192.168.75.97
# netmask 255.255.255.0
# gateway 192.168.75.1

allow-hotplug wlan0
iface wlan0 inet static
address 192.168.75.97
netmask 255.255.255.0
gateway 192.168.75.1
wpa-passphrase "my secret"
wpa-ssid "N7QNM"

Output of ifconfig
eth0 Link encap:Ethernet HWaddr b8:27:eb:cb:73:52
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:329 errors:0 dropped:0 overruns:0 frame:0
TX packets:329 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:29890 (29.1 KiB) TX bytes:29890 (29.1 KiB)

wlan0 Link encap:Ethernet HWaddr 04:a1:51:6d:b4:3a
inet addr:192.168.75.97 Bcast:192.168.75.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:35 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

Output of route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.75.1 0.0.0.0 UG 0 0 0 wlan0
192.168.75.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0

output of ping 192.168.75.1
PING 192.16.75.1 (192.16.75.1) 56(84) bytes of data.
From 192.168.75.97 icmp_seq=1 Destination Host Unreachable
From 192.168.75.97 icmp_seq=2 Destination Host Unreachable

--- 192.16.75.1 ping statistics ---
5 packets transmitted, 0 received, +2 errors, 100% packet loss, time 4007ms
pipe 2

briguy84
Posts: 2
Joined: Fri Apr 03, 2015 4:33 am

WiFi/Ethernet working Simultaneously

Tue Apr 21, 2015 1:07 am

I just want to say thank you OP! I've been racking my brain for the last few weeks trying to get both Ethernet and WiFi to work simultaneously and these troubleshooting steps helped out a lot. Apparently the default /etc/network/interface settings were "allow-hotplug" instead of "auto" for wlan0 and "auto" wasn't called for eth0; these two little things were not allowing wlan0 to be initialized during startup.

For anyone else trying to get this to work in order to allow WiFi to access your wireless network, you have to input this code

Code: Select all

sudo route add default gw *wifi router* wlan0
The code above is a temporary fix and will stick until either the system restarts or network connectivity stops/restarts.

MrEngman
Posts: 3849
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: WiFi/Ethernet working Simultaneously

Tue Apr 21, 2015 1:41 am

briguy84 wrote:I just want to say thank you OP! I've been racking my brain for the last few weeks trying to get both Ethernet and WiFi to work simultaneously and these troubleshooting steps helped out a lot. Apparently the default /etc/network/interface settings were "allow-hotplug" instead of "auto" for wlan0 and "auto" wasn't called for eth0; these two little things were not allowing wlan0 to be initialized during startup.

For anyone else trying to get this to work in order to allow WiFi to access your wireless network, you have to input this code

Code: Select all

sudo route add default gw *wifi router* wlan0
The code above is a temporary fix and will stick until either the system restarts or network connectivity stops/restarts.
I guess it may depend on the OS you are using, or the network you are connecting to, but I have no problem with my PI's with both eth and wifi connected. I have 2 Pi 2B's and a Pi B+ currently running with both eth and wifi connected and my /etc/network/interfaces file is

Code: Select all

auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-ssid "network-name"
wpa-psk "network-password"
No "auto eth0" for the eth and "allow-hotplug wlan0" for the wifi. And these work for the whole range of wifi adapters that I have, 8188eu, 8812au and mt7601 with several different modules of each type and always plugged directly into one of the Pi's USB ports.


MrEngman
Simplicity is a prerequisite for reliability. Edsger W. Dijkstra

Please post ALL technical questions on the forum. Please Do Not send private messages.

carvalheda22
Posts: 1
Joined: Thu Apr 23, 2015 5:13 pm

Re: WiFi Issues ? Start here !

Thu Apr 23, 2015 5:23 pm

Hello everyone!

I have a edimax N150 Wireless High-Gain Usb adapter (EW-7711UAn V2) but I´m having really big problems to configure this adapter to my raspeberry pi 2... Anybody can help me please?

Thank you very much!

MrEngman
Posts: 3849
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: WiFi Issues ? Start here !

Thu Apr 23, 2015 7:13 pm

carvalheda22 wrote:Hello everyone!

I have a edimax N150 Wireless High-Gain Usb adapter (EW-7711UAn V2) but I´m having really big problems to configure this adapter to my raspeberry pi 2... Anybody can help me please?

Thank you very much!
I have drivers available for this wifi adapter and have one connected to and running on one of my Pi 2B at the moment.

You can download a driver after you use command uname -a to find the kernel revision and build. The download instructions use the kernel revision and build to select the right file to download.
wget https://dl.dropboxusercontent.com/u/80256631/mt7601-kernel-revision-build.tar.gz
tar xzf mt7601-kernel-revision-build.tar.gz
./install.sh
As an example running uname -a on a Pi 2B shows
Linux Pi-B-2 3.18.7-v7+ #755 SMP PREEMPT Thu Feb 12 17:20:48 GMT 2015 armv7l GNU/Linux
where kernel-revision is 3.18.7-v7, without the + sign, and the build is 755, without the # character. So for that kernel revision and build the download and install instructions are
wget https://dl.dropboxusercontent.com/u/80256631/mt7601-3.18.7-v7-755.tar.gz
tar xzf mt7601-3.18.7-v7-755.tar.gz
./install.sh
.Run command uname -a to find your kernel-revision and build and insert them in the download instructions, like in the example above, to download and install the wifi driver.

Hope this helps.


MrEngman
Simplicity is a prerequisite for reliability. Edsger W. Dijkstra

Please post ALL technical questions on the forum. Please Do Not send private messages.

grafuso
Posts: 1
Joined: Fri Apr 24, 2015 10:57 am

Re: WiFi Issues ? Start here !

Fri Apr 24, 2015 11:12 am

Hi I have just bought Edimax EW-7811UN wifi adapter. I plugged it into my Raspberry Pi 2 and it says like this in dmesg:

Code: Select all

[ 2044.989047] usb 1-1.5: new high-speed USB device number 8 using dwc_otg
[ 2045.090663] usb 1-1.5: New USB device found, idVendor=7392, idProduct=7811
[ 2045.090689] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2045.090708] usb 1-1.5: Product: 802.11n WLAN Adapter
[ 2045.090724] usb 1-1.5: Manufacturer: Realtek
[ 2045.090740] usb 1-1.5: SerialNumber: 00e04c000001
[ 2045.113925] 8192cu: disagrees about version of symbol module_layout
Here is some more additional info:

Code: Select all

uname -a && lsusb && lsmod && cat /etc/network/interfaces && sudo cat /etc/wpa_supplicant/wpa_supplicant.conf

Linux testmachine 3.18.11-v7+ #777 SMP PREEMPT Sat Apr 11 17:30:37 BST 2015 armv7l GNU/Linux

Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 008: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]

Module                  Size  Used by

auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet manual
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
I have build kernel again and done some own modules and they work just fine. I think I just need to rebuild this 8192cu.ko again but I can't find the source anywhere. I tried to look on the forums but I didn't find it.

Thanks in advance!

MrEngman
Posts: 3849
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: WiFi Issues ? Start here !

Fri Apr 24, 2015 12:23 pm

The driver for the Edimax EW-7811UN is included in the kernel source in the raspberrypi/linux git repository at linux/drivers/net/wireless/rtl8192cu.

If you completely rebuild the kernel it should include the 8192cu driver. Why are you rebuilding the kernel? Surely it is not necessary to completely rebuild the kernel just to add some new modules.


MrEngman
Simplicity is a prerequisite for reliability. Edsger W. Dijkstra

Please post ALL technical questions on the forum. Please Do Not send private messages.

mrcleanr6
Posts: 3
Joined: Wed Apr 29, 2015 2:22 pm

Re: WiFi Issues ? Start here !

Wed Apr 29, 2015 2:42 pm

i have been all over the net trying to find this info and i keep coming up with all the above info. i am trying to connect to my network and its not working out because the changes to the network/interfaces and wpa supplicant file are for pw protected networks. does any one know the configuration or changes i need to make in these files for an open network? i can do a scan and my network is seen but i cant connect to it. any info would be great....thanks in advance

MrEngman
Posts: 3849
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: WiFi Issues ? Start here !

Wed Apr 29, 2015 3:13 pm

mrcleanr6 wrote:i have been all over the net trying to find this info and i keep coming up with all the above info. i am trying to connect to my network and its not working out because the changes to the network/interfaces and wpa supplicant file are for pw protected networks. does any one know the configuration or changes i need to make in these files for an open network? i can do a scan and my network is seen but i cant connect to it. any info would be great....thanks in advance
For an open network use this

Code: Select all

auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet dhcp
wireless-essid Your-Network-Name
Wifi set up for different security settings can be found here.


MrEngman
Simplicity is a prerequisite for reliability. Edsger W. Dijkstra

Please post ALL technical questions on the forum. Please Do Not send private messages.

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