Hi,
Sorry to bother you but I have an issue I can't resolve...
I just upgraded my kernel from 4.8.0-53 to 4.10 and it works well but I seem to have lost the driver for my TP-Link wireless T4-UH which worked in the old kernel.
The error message I get when I plug in is:

Sep 25 15:25:01 dave-MS-6702E CRON[5086]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1)
Sep 25 15:25:36 dave-MS-6702E kernel: [ 1407.473947] usb 1-7: USB disconnect, device number 4
Sep 25 15:25:40 dave-MS-6702E colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1

Sep 25 15:25:47 dave-MS-6702E kernel: [ 1418.208030] usb 1-7: new high-speed USB device number 5 using ehci-pci
Sep 25 15:25:47 dave-MS-6702E kernel: [ 1418.364898] usb 1-7: New USB device found, idVendor=2357, idProduct=0103
Sep 25 15:25:47 dave-MS-6702E kernel: [ 1418.364902] usb 1-7: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Sep 25 15:25:47 dave-MS-6702E kernel: [ 1418.364904] usb 1-7: Product: 802.11n NIC
Sep 25 15:25:47 dave-MS-6702E kernel: [ 1418.364905] usb 1-7: Manufacturer: Realtek
Sep 25 15:25:47 dave-MS-6702E kernel: [ 1418.364907] usb 1-7: SerialNumber: 123456
Sep 25 15:25:47 dave-MS-6702E mtp-probe: checking bus 1, device 5: "/sys/devices/pci0000:00/0000:00:10.4/usb1/1-7"
Sep 25 15:25:47 dave-MS-6702E mtp-probe: bus: 1, device: 5 was not an MTP device
Sep 25 15:25:51 dave-MS-6702E colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1

I attempted to make the driver provided by TP-Link and the make fails as I suspect it is designed for an old kernel.

Any help would be appreciated.
Dave Blizzard

Further to my previous post:
The problem is solved. I attempted to build the driver from the source found at TP-Link for the 8812au device, but couldn't make it build. This device was installed on the last working kernel but did not want to work on version 4.10.0-35-generic. After a bunch of fiddling, I told device manager to stop using this driver and rebooted. I then told device manager to use it again and rebooted and it worked fine...
Sorry for the trouble...

Hi dBlizzard and welcome to LQ.

It is no trouble at all, we're glad you were able to solve before anyone yet had a chance to offer some suggestions.

I'm marking your thread as Solved.

Best Regards.

That is very old source - even their own FAQ suggests to use github open source community drivers. There is probably an update to 4.11 that will require another patch - I ran into similar with 8814au (new buy) a couple of days back.
Try this.

I understand your notes in the README.md, but is this an example of your 8814au install or do I also download all those files at the top of the page and use what seems to be a driver there? I would assume as a zip file which I then install in a working dir? My wifi modem is an 8843-T4UH...
Sorry but I'm a newbie at this...

Ignore my comment re 8814au, that was just an aside - concentrate on 8812au.
The author of the repo (certainly not me) has covered things pretty well. To save having to explain git, click the green button on the site and download the zip - it appeared as ~/Downloads/rtl8812au-5.1.5.zip on my system. Double click it from a GUI file manager, or use unzip in a terminal - it will generate a rtl8812au-5.1.5 directory.
You will need compilers and kernel headers for the following.Then install dkms as suggested, then cd into ~/Downloads/rtl8812au-5.1.5 and run the following - it should finish cleanly and then you can reboot. The module should load automatically.

Your procedure worked perfectly with a small change to dkms-install.sh by fixing DRV_DIR to include/append the version number 5.1.5

Thanks...