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Hardware - Support => Network => Topic started by: silverjock on October 25, 2019, 06:50:29 AM

Title: wifi lost after update
Post by: silverjock on October 25, 2019, 06:50:29 AM
Complete novice and silver hair  so spoon feeding  only!  My  wife's  laptop  has  been  working  ok on  usb  wifi  till I  updated  today.  I  had  to  have  a  friend  install drivers  for  this usb  device  but  no  idea  how  he  did this.  After  update  no  wireless options  appear  to  click  on  (  I  assumed  this  would  be  automatic )  I  can  use  terminal  if  spoon  fed,  2  propriety  drivers  show  when  I  check  network  connections  from  menu.  how  do  I  get  back  on  line
 thanks
Title: Re: wifi lost after update
Post by: Jerry on October 25, 2019, 11:30:22 PM
Can your friend not load the drivers for you again?

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Title: Re: wifi lost after update
Post by: silverjock on October 26, 2019, 03:33:53 PM
Thanks  for  reply   unfortunately  friend  was  just  visiting,  does  the  driver  have  to  be  loaded  again  and  if  so  how  is  this  done?
The  driver  folder  is  on  the  desktop  /  the  usb  shows  on  ls usb/  the  chip  is  rtl 8811cu / dkms is  installed.
 Would
  sudo ./dkms -install.sh
sudo modprobe  8811cu
iw config
 be  the  way  to  go?    Found  this  between  github  and  forum  search  but  unsure  if  this is  what  I  need
  Thanks
Title: Re: wifi lost after update
Post by: Jerry on October 26, 2019, 06:00:55 PM
What is the github link?

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Title: Re: wifi lost after update
Post by: silverjock on October 27, 2019, 07:19:08 AM
Hi  thanks  for  responce
  Is  this  what  you  need?            https://github.com/brektrou/rtl8821CU
 
Title: Re: wifi lost after update
Post by: Jerry on October 27, 2019, 07:42:06 AM
Make sure you are inside the driver folder, then open a Terminal and do:

Code: [Select]
sudo ./dkms-install.sh
follow whatever it says. You may or may not need to reboot after to get wifi.
Title: Re: wifi lost after update
Post by: silverjock on October 27, 2019, 09:22:09 AM
Thanks
    Further  problem  with  laptop now,  won't  boot,  stops at BusyBox  which is gobildygook  to  me,  so  may  be  a  while  till  I  can  try  your  fix.
  Thanks  anyway
Title: Re: wifi lost after update
Post by: silverjock on October 27, 2019, 10:56:01 AM
Managed to get boot up
 tried  above  command in terminal  but  get
 command not found
thanks
Title: Re: wifi lost after update
Post by: Jerry on October 27, 2019, 05:43:46 PM
Command not found means that you are not in the folder where the install file is. Have another look at my previous instructions and try again.

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Title: Re: wifi lost after update
Post by: silverjock on October 28, 2019, 07:54:01 AM
sorry for  my  lack of ability.  I  thought  i  was  in  folder,  When  I  click  on  folder  the  first  opens  as  driver (another  folder)  click  again  opens  with    a blanked  out  folder  symbol  and  rtl8821cu  wifi linux  etc  listed  acroos  the  top  further  click  and  a blank  page  appears.    If  I  right  click  on  the  page  with  rtl8821cu  etc  I  have  options  to open-   open in new  page-new widow-open  terminal-  or open  as  administrator  are  any  of  these   the  right  one?  or  is  the  file  required  somewhere  else  and  if  so  how  do  i  find  it  Thanks
Title: Re: wifi lost after update
Post by: Jerry on October 28, 2019, 08:13:51 AM
Right click inside the folder that has the dkms-install.sh file and follow previous instructions.

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Title: Re: wifi lost after update
Post by: silverjock on October 28, 2019, 10:23:26 AM
checked again  the folders on desktop  are empty!(properties  =  4 items   of18.8kbs!)
 could  they  have  been  moved  elsewhere  and  if so  how  do  I  find  them,
 or  will  i  have  to  load driver files   again  from  cd  supplied  with  usb
 thanks  again 
 Later  today  I  went  ahead  and  reloaded  the files  from   disc,  extracted  files/  and  opened    the  folder/  located  install.sh/
opened  terminal  entered    the code  as  above  but still  get/ command  not found!
Title: Re: wifi lost after update
Post by: Jerry on October 29, 2019, 12:27:31 AM
Might pay to get your friend to help at this stage.

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Title: Re: wifi lost after update
Post by: silverjock on October 29, 2019, 07:32:51 AM
My thoughts  too
   but  decided  too  give  local  repair  shop  a  try  as  friend  would just  be  at  internet  distance  too!
  Will  post  what  was  wrong  here  after  visit  if  i  can,  in  case  it  is  helpful  to  someone  else
  Thanks  for  your  patience  .
Title: Re: wifi lost after update
Post by: trinidad on October 29, 2019, 11:57:32 AM
@Jerry  Been following this. Interesting to me that firmware-realtek is still in Debian backports while I could not find the package in multiverse. Is it named something else now or is realtek support only on git?

TC
Title: Re: wifi lost after update
Post by: Jerry on October 29, 2019, 12:33:01 PM
If you see Realtek in Github, it is usually hacked drivers to work better than the original.

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