Hetoft
Posts: 4
Joined: Tue Jun 21, 2016 11:16 am

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Tue Jun 21, 2016 12:06 pm

MrEngman wrote:
saintnick wrote:Mr EngMan,

Do you have any suggestion why my 5GHz SSID from my ASUS RT68U(Merlin) won't show up for the 7811UTC in Openelec 6.0.3 on my RPi3?
It's strange because other 5GHz SSID's from neighbours and my chromecasts do show.
Connecting to my 2.4 GHz SSID from the same router works fine.
I am just trying a 7811UTC on a Pi 3B and it has connected to my 5GHz AP, a Netgear WAC120, without problems.

The only thing I can think of at the moment is something to do with the set up of the RT68U on 5GHz. But what I have no idea.

MrEngman
Hello MrEngman,

Do you still have a stable 5 GHz connection with your 7811UTC / Pi 3?

I have the same wifi dongle, and while it's easy to connect to my 5 GHz network, it disconnects / drops out very often.

I very much wanted to try your drivers, but as I am using OSMC or OpenELEC, that is not really an option (is it?).

Thanks in advance.

saintnick wrote:Solved.
I got it to work with this answer from Edimax support:
The EW-7811UTC cannot detect all frequencies. If your router is using a channel which is not supported the adapter will not detect it.

This adapter only supports channels that are within band 1 and band 2. You can try to set a fixed channel on your router, using the lower 5GHz channels.
Thank you for your effort.
I guess I didn't try/vary enough...
Does the connection still work for you, and is it stable?

MrEngman
Posts: 3850
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Tue Jun 21, 2016 3:08 pm

My EW-7811UTC is currently connected to a Pi 2 B and I have no trouble with it. Stays connected until I reboot or shutdown and I can then reconnect when the Pi restarts.

In fact I normally have no issues with any of my Pi's using whatever wifi is connected. Currently have Pi 3 B using the internal Broadcom wifi, a Pi zero with EW-7811U, a Pi 2 B withher T2U and a Pi 2 B with EW-7811UTC. All are accessed using SSH via the wifi.



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

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

Hetoft
Posts: 4
Joined: Tue Jun 21, 2016 11:16 am

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Wed Jun 22, 2016 10:47 am

MrEngman wrote:My EW-7811UTC is currently connected to a Pi 2 B and I have no trouble with it. Stays connected until I reboot or shutdown and I can then reconnect when the Pi restarts.

In fact I normally have no issues with any of my Pi's using whatever wifi is connected. Currently have Pi 3 B using the internal Broadcom wifi, a Pi zero with EW-7811U, a Pi 2 B withher T2U and a Pi 2 B with EW-7811UTC. All are accessed using SSH via the wifi.

MrEngman
Thanks for the fast reply. Good to hear it's working for you. However, I'm pretty certain there is an issue with the drivers on OSMC / OpenELEC for the EW-7811UTC. Either that, or my unit is faulty... but then it shouldn't be working properly when I use it on my laptop. Very strange indeed...

MrEngman
Posts: 3850
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Wed Jun 22, 2016 1:23 pm

I had a look at the latest version of OSMC last week and noticed something odd about several of the wifi drivers. The source was included the code but the modules were not included in the directories where they would normally be if compiled as part of the kernel and the .config file for the kernel did not enable compiling the drivers. Seems like they were compiled separately and added to the kernel image at a later stage before creating the kernel image.

I figured out how to compile drivers for OSMC, specifically version 4.4.8-3, and I compiled a driver for the mt7610 wifi using the code I have as the one included only supported a single USB ID, where as the one I use includes a dozen or so different USB IDs, and that appeared to operate, although I did not use it to view any videos or the like.

I have now compiled a 8812au driver for OSMC 4.4.8-3 using the source I have. The 8812au driver included with OSMC is version v4.2.2_7502.20130517. The driver source I use is version v4.3.14_13455.20150212_BTCOEX20150128-51 so is somewhat newer but whether it will perform any differently I don't know as I have not tried it or the version included in the OSMC image.

If you are using version 4.4.8-3-osmc and want to try the driver I've compiled I have made it available on dropbox and you can download and install it using commands

Code: Select all

wget https://dl.dropboxusercontent.com/u/80256631/8812au-4.4.8-3-osmc.tar.gz
tar xzf 8812au-4.4.8-3-osmc.tar.gz
./install.sh
I would suggest first save the driver version already included using

Code: Select all

mv /lib/modules/4.4.8-3-osmc/kernel/drivers/net/wireless/8812au.ko ./backup-8812au.ko
just in case you may need to re-install it. You can re-install it using

Code: Select all

mv backup-8812au.ko 8812au.ko
sudo install -p -m 644 8812au.ko /lib/modules/4.4.8-3-osmc/kernel/drivers/net/wireless
sudo depmod -a



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

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

Hetoft
Posts: 4
Joined: Tue Jun 21, 2016 11:16 am

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Wed Jun 22, 2016 3:25 pm

MrEngman wrote:I had a look at the latest version of OSMC last week and noticed something odd about several of the wifi drivers. The source was included the code but the modules were not included in the directories where they would normally be if compiled as part of the kernel and the .config file for the kernel did not enable compiling the drivers. Seems like they were compiled separately and added to the kernel image at a later stage before creating the kernel image.

I figured out how to compile drivers for OSMC, specifically version 4.4.8-3, and I compiled a driver for the mt7610 wifi using the code I have as the one included only supported a single USB ID, where as the one I use includes a dozen or so different USB IDs, and that appeared to operate, although I did not use it to view any videos or the like.

I have now compiled a 8812au driver for OSMC 4.4.8-3 using the source I have. The 8812au driver included with OSMC is version v4.2.2_7502.20130517. The driver source I use is version v4.3.14_13455.20150212_BTCOEX20150128-51 so is somewhat newer but whether it will perform any differently I don't know as I have not tried it or the version included in the OSMC image.

If you are using version 4.4.8-3-osmc and want to try the driver I've compiled I have made it available on dropbox and you can download and install it using commands

Code: Select all

wget https://dl.dropboxusercontent.com/u/80256631/8812au-4.4.8-3-osmc.tar.gz
tar xzf 8812au-4.4.8-3-osmc.tar.gz
./install.sh
I would suggest first save the driver version already included using

Code: Select all

mv /lib/modules/4.4.8-3-osmc/kernel/drivers/net/wireless/8812au.ko ./backup-8812au.ko
just in case you may need to re-install it. You can re-install it using

Code: Select all

mv backup-8812au.ko 8812au.ko
sudo install -p -m 644 8812au.ko /lib/modules/4.4.8-3-osmc/kernel/drivers/net/wireless
sudo depmod -a



MrEngman
Wow, thanks so much for your efforts.

I really want to try your driver out, but I'm running the June version of OSMC, which runs on Kernel 4.4.13-5-osmc.

Is there any possibility that you can update the driver to match 4.4.13-5-osmc? Or can I still use the version you posted here, just on a newer kernel? Don't really want to break my Pi...

Thanks!

MrEngman
Posts: 3850
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Wed Jun 22, 2016 4:53 pm

Hetoft wrote: Wow, thanks so much for your efforts.

I really want to try your driver out, but I'm running the June version of OSMC, which runs on Kernel 4.4.13-5-osmc.

Is there any possibility that you can update the driver to match 4.4.13-5-osmc? Or can I still use the version you posted here, just on a newer kernel? Don't really want to break my Pi...

Thanks!
I'll see what I can do. Shouldn't be too difficult having figured out how to compile modules for 4.4.8-3-osmc. Guess 4.4.13.5-osmc should be similar.

I'll let you know how I get on.



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

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

saintnick
Posts: 4
Joined: Wed Jun 15, 2016 2:14 pm

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Wed Jun 22, 2016 9:41 pm

Hetoft wrote:Does the connection still work for you, and is it stable?
Well, when I tried to watch my first 1080p movie the whole Pi3 OpenElec system stalled after 3 or 4 minutes, and I had to power cycle. I was afraid this might repeat itself, with this new wifi stick, and that I might have to get into the config buffering settings which I've seen some people dealing with. But it didn't. After the power cycle I started the film again and watched the whole two hours without any problems, including pauses and skipping backwards/forwards.

So fingers crossed...

One thing that I wonder about with the new USB wifi stick, shouldn't we disable the Pi3 onboard Wifi? At least their radio will interfere to detriment each other??? @Mr Engman, do you agree?

MrEngman
Posts: 3850
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Wed Jun 22, 2016 9:55 pm

saintnick wrote: One thing that I wonder about with the new USB wifi stick, shouldn't we disable the Pi3 onboard Wifi? At least their radio will interfere to detriment each other??? @Mr Engman, do you agree?
Yes, probably a good idea. Saves wasting power as well.



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

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

MrEngman
Posts: 3850
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Thu Jun 23, 2016 1:26 pm

Hetoft wrote:Is there any possibility that you can update the driver to match 4.4.13-5-osmc? Or can I still use the version you posted here, just on a newer kernel? Don't really want to break my Pi...

Thanks!
I now have 4.4.13-5-osmc with the EW-7811UTC wifi running on a Pi 2 B.

You can download and install the driver in a text window using commands

Code: Select all

wget https://dl.dropboxusercontent.com/u/80256631/8812au-4.4.13-5-osmc.tar.gz
tar xzf 8812au-4.4.13-5-osmc.tar.gz
./install.sh
. I installed it on my Pi by using SSH from my laptop and running the commands in the text window. I then set up the wifi from My OSMC.




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

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

saintnick
Posts: 4
Joined: Wed Jun 15, 2016 2:14 pm

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Tue Jun 28, 2016 9:35 pm

saintnick wrote:
Hetoft wrote:Does the connection still work for you, and is it stable?
Well, when I tried to watch my first 1080p movie the whole Pi3 OpenElec system stalled after 3 or 4 minutes, and I had to power cycle. I was afraid this might repeat itself, with this new wifi stick, and that I might have to get into the config buffering settings which I've seen some people dealing with. But it didn't. After the power cycle I started the film again and watched the whole two hours without any problems, including pauses and skipping backwards/forwards.

So fingers crossed...
Alas :-(
5 GHz is not reliable with the current drivers in OpenElec on Pi3. It stalls easily for minutes, freezing the Pi, when under "stress" i.e. watching 1080p 11GB mkv. Or also just updating the library with the moviedb scrapers.
2.4 GHz was fine so far (one movie). I hope it remains so.

xyboox
Posts: 10
Joined: Fri Feb 08, 2013 3:05 pm

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Mon Jul 18, 2016 3:55 pm

MrEngman wrote:The EW-7811UTC requires a driver installing. I have compiled drivers for it, for raspbian, and it works at 5GHz.

If you are using raspbian, wheezy or Jessie, post the output of command uname -a and I can give you the commands to download and install the version of the driver you need.


MrEngman
Hey @MrEngman,
I have this, of you can help me with this wifi:
Linux raspberrypi 4.4.11+ #888 Mon May 23 20:02:58 BST 2016 armv6l GNU/Linux

It is a PI zero

Thanks!

MrEngman
Posts: 3850
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Mon Jul 18, 2016 4:18 pm

xyboox wrote:
MrEngman wrote:The EW-7811UTC requires a driver installing. I have compiled drivers for it, for raspbian, and it works at 5GHz.

If you are using raspbian, wheezy or Jessie, post the output of command uname -a and I can give you the commands to download and install the version of the driver you need.


MrEngman
Hey @MrEngman,
I have this, of you can help me with this wifi:
Linux raspberrypi 4.4.11+ #888 Mon May 23 20:02:58 BST 2016 armv6l GNU/Linux

It is a PI zero

Thanks!
You can download and install the driver using commands

Code: Select all

wget https://dl.dropboxusercontent.com/u/80256631/8812au-4.4.11-888.tar.gz
tar xzf 8812au-4.4.11-888.tar.gz
./install.sh
if you have internet connection to your Pi Zero.

If not download the file on another system and copy it to your SD card then untar and install it.



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

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

xyboox
Posts: 10
Joined: Fri Feb 08, 2013 3:05 pm

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Mon Jul 18, 2016 4:52 pm

Thank you @MrEngman!
It simply... works!
THANKS!

xyboox
Posts: 10
Joined: Fri Feb 08, 2013 3:05 pm

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Mon Jul 18, 2016 5:37 pm

MrEngman wrote:
xyboox wrote:
MrEngman wrote:The EW-7811UTC requires a driver installing. I have compiled drivers for it, for raspbian, and it works at 5GHz.

If you are using raspbian, wheezy or Jessie, post the output of command uname -a and I can give you the commands to download and install the version of the driver you need.


MrEngman
Hey @MrEngman,
I have this, of you can help me with this wifi:
Linux raspberrypi 4.4.11+ #888 Mon May 23 20:02:58 BST 2016 armv6l GNU/Linux

It is a PI zero

Thanks!
You can download and install the driver using commands

Code: Select all

wget https://dl.dropboxusercontent.com/u/80256631/8812au-4.4.11-888.tar.gz
tar xzf 8812au-4.4.11-888.tar.gz
./install.sh
if you have internet connection to your Pi Zero.

If not download the file on another system and copy it to your SD card then untar and install it.



MrEngman
Hi again @MrEngman,
after upgrade, the wifi no longer works as it reports now this version:

Linux raspberrypi 4.4.13+ #894

Can you please help me again?
Thank you!

MrEngman
Posts: 3850
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Mon Jul 18, 2016 5:44 pm

xyboox wrote:
MrEngman wrote:
xyboox wrote:Hey @MrEngman,
I have this, of you can help me with this wifi:
Linux raspberrypi 4.4.11+ #888 Mon May 23 20:02:58 BST 2016 armv6l GNU/Linux

It is a PI zero

Thanks!
You can download and install the driver using commands

Code: Select all

wget https://dl.dropboxusercontent.com/u/80256631/8812au-4.4.11-888.tar.gz
tar xzf 8812au-4.4.11-888.tar.gz
./install.sh
if you have internet connection to your Pi Zero.

If not download the file on another system and copy it to your SD card then untar and install it.



MrEngman
Hi again @MrEngman,
after upgrade, the wifi no longer works as it reports now this version:

Linux raspberrypi 4.4.13+ #894

Can you please help me again?
Thank you!
You can download a new version updating the filename using the data from command uname -a. For 4.4.13+ #894 use commands

Code: Select all

wget https://dl.dropboxusercontent.com/u/80256631/8812au-4.4.13-894.tar.gz
tar xzf 8812au-4.4.13-894.tar.gz
./install.sh
See how the filename is based on the kernel version and build number from command uname -a.



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

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

xyboox
Posts: 10
Joined: Fri Feb 08, 2013 3:05 pm

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Mon Jul 18, 2016 5:54 pm

You mean for every future update I could use the same file applying the file-rename according to the version reported by uname -a?

Thanks for the update!

MrEngman
Posts: 3850
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Mon Jul 18, 2016 6:41 pm

xyboox wrote:You mean for every future update I could use the same file applying the file-rename according to the version reported by uname -a?

Thanks for the update!
Yes, provided I continuing to compile the drivers, which I expect to do.

One other thing which I think you will find helpful. I have a script that can be used to automatically update the driver if you update the kernel. You can download and install it using

Code: Select all

wget https://dl.dropboxusercontent.com/u/80256631/install-wifi.tar.gz
tar xzf install-wifi.tar.gz
Run command ./install-wifi -h to display the help and see how to use it.



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

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

xyboox
Posts: 10
Joined: Fri Feb 08, 2013 3:05 pm

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Mon Jul 18, 2016 7:00 pm

Excellent! Thank you! Hat off!

Svarog
Posts: 1
Joined: Thu Jul 28, 2016 4:42 pm

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Thu Jul 28, 2016 4:49 pm

You're the man, MrEngman !!!!

I created an account on this forum just to thank you. Your driver works well on TP-Link Archer T4UH. The driver is sooooo outdated on the official website, and it is far away to compile on my osmc distro 4.4.13-5-osmc. I was really hesitating to send it back to the seller.

Thank you very much, great job !

MrEngman
Posts: 3850
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Thu Jul 28, 2016 9:49 pm

Svarog wrote:You're the man, MrEngman !!!!

I created an account on this forum just to thank you. Your driver works well on TP-Link Archer T4UH. The driver is sooooo outdated on the official website, and it is far away to compile on my osmc distro 4.4.13-5-osmc. I was really hesitating to send it back to the seller.

Thank you very much, great job !
No problem. Glad to be able to help.



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

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

killergames156
Posts: 2
Joined: Wed Aug 31, 2016 5:00 pm

Driver 8812au on parrot os.

Tue Sep 06, 2016 2:46 pm

Hello I need help, seeking driver 8812au Edimax ew - 7811uac . Here is information about Linux.
Linux parrot-armhf 4.4.11-v7+ #888 SMP Mon May 23 20:10:33 BST 2016 armv7l GNU/LINUX

MrEngman
Posts: 3850
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: Driver 8812au on parrot os.

Tue Sep 06, 2016 5:22 pm

killergames156 wrote:Hello I need help, seeking driver 8812au Edimax ew - 7811uac . Here is information about Linux.
Linux parrot-armhf 4.4.11-v7+ #888 SMP Mon May 23 20:10:33 BST 2016 armv7l GNU/LINUX
You can download and install the driver using commands

Code: Select all

wget https://dl.dropboxusercontent.com/u/80256631/8812au-4.4.11-v7-888.tar.gz
tar xzf 8812au-4.4.11-v7-888.tar.gz
./install.sh
After installing the driver reboot to activate it.

I also have a script which will automatically determine the driver and the version you need. You can download the script using commands

Code: Select all

wget https://dl.dropboxusercontent.com/u/80256631/install-wifi.tar.gz
tar xzf install-wifi.tar.gz
Run command ./install-wifi -h to see the instructions on how to use it.


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

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

amq
Posts: 4
Joined: Fri Sep 09, 2016 6:01 pm

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Fri Sep 09, 2016 7:33 pm

Hey,

thanks for your great work MrE!

I managed to install the driver on 4.4.16 osmc using your 4.4.13 package. I've had one connection breakdown on 5GHZ so far during the last couple of hours, otherwise all good.

Not sure what magic you are doing to the drivers when compiling for a new kernel but do you believe using new 4.4.16 drivers would improve stability?

Thanks & Cheers
Andreas

MrEngman
Posts: 3850
Joined: Fri Feb 03, 2012 2:17 pm
Location: Southampton, UK

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Fri Sep 09, 2016 11:28 pm

amq wrote:Hey,

thanks for your great work MrE!

I managed to install the driver on 4.4.16 osmc using your 4.4.13 package. I've had one connection breakdown on 5GHZ so far during the last couple of hours, otherwise all good.

Not sure what magic you are doing to the drivers when compiling for a new kernel but do you believe using new 4.4.16 drivers would improve stability?

Thanks & Cheers
Andreas
New 4.4.16 driver? What's this then.



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

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

amq
Posts: 4
Joined: Fri Sep 09, 2016 6:01 pm

Re: Edimax EW-7811UTC WIFIAC NOT WORKING

Sat Sep 10, 2016 5:51 am

Sorry, I am being unclear. I meant:

Drivers for

Linux osmc 4.4.16-4-osmc #1 SMP PREEMPT Fri Aug 26 00:22:10 UTC 2016 armv7l GNU/Linux

When I wrote 4.4.16 drivers. Or would this just be the same as the 4.4.13.v1 ones that I downloaded from you and depmod'ed?

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