My Desktop PC no longer detects my SFR Box. Solved

Question

Hello, I’m contacting you because I have a problem with my PC. Since yesterday evening, my PC can no longer connect to the Internet via an RJ45 cable. It's not the cable because I tested it on a laptop and it works. And it's not the box, because the Wi-Fi works and when I connected the cable to the laptop, it worked. I tried connecting to the Internet via my mobile phone, but that doesn’t work either. I've tried several things but without any results. The Windows diagnostic is telling me it cannot find an IP address. Even when changing the network to assign an IP "192.168.1.2", the problem persists. Hoping you can help me.

billmaxime · Accepted Answer

re  ok, do this:  turn off the PC normally  unplug the box electrically for 20 seconds  plug the box back in and restart the PC  let me know how it goes  @+  -- the radiation level is higher at the employment office than at Chernobyl

billmaxime · Answer

Hello   do this on your desktop computer   close all your running programs   start the command prompt as administrator (right-click)   in the window, type these commands one by one and hit ENTER after each command   ipconfig /flushdns  netsh winsock reset  netsh winhttp reset proxy  netsh winhttp reset tracing  netsh winsock reset catalog  netsh int ip reset all  netsh int ipv4 reset catalog  netsh int ipv6 reset catalog   when you're done, reboot the PC and let me know what happens   see you   --  the radiation level is higher at the unemployment office than at Chernobyl

RedShoot174 · Answer

The network icon in the taskbar shows "Ethernet 2 - No Internet Access."

billmaxime · Answer

re  The network logo in the taskbar shows "ethernet 2 - no internet access"  Did you execute the steps in this message >> https://forums.commentcamarche.net/forum/affich-35410221-mon-pc-fixe-ne-detecte-plus-ma-box-sfr#3  @+  -- the radiation level is higher at the employment office than at Chernobyl

billmaxime · Answer

re  ok, waiting for your response after the manipulation  @+  -- the radiation level is higher at the employment office than in Chernobyl

billmaxime · Answer

re  ok, check in the device manager if you have any ? or /!\ yellow  post 1 screenshot if possible >> https://www.commentcamarche.net/infos/25913-ccm-inserer-une-image-dans-une-discussion/  @+  -- the radiation level is higher at the employment office than in Chernobyl

GentlemanSeynox · Answer

Hello,  Go to the Control Panel, click on "Network and Internet" then "Network and Sharing Center," then click on the small "Ethernet" in blue, to the right of "Connections:".  Next, go to Properties, click on "Internet Protocol Version 4 (TCP/IPv4)" and then on "Properties," and check that the option "Obtain an IP address automatically" and "Obtain DNS server addresses automatically" are both selected, then do the same for "Internet Protocol Version 6 (TCP/IPv6)."  If that does not solve your problem, try updating your network adapter driver.

billmaxime · Answer

I already looked but I'll try to send a screenshot   ok  @+  -- the radiation level is higher at the unemployment office than at Chernobyl

billmaxime · Answer

re  Otherwise, for the Driver not having a connection on this PC, I don't see how to do it  give the brand and model of your PC, its OS (W7/W8.1 etc...) in 32 or 64 bits  https://www.commentcamarche.net/informatique/windows/169-32-bits-ou-64-bits-comment-savoir/  give the device identifier >> https://www.commentcamarche.net/faq/35597-trouver-le-numero-d-identification-d-un-peripherique  @+  -- the radiation level is higher at the employment center than at Chernobyl

billmaxime · Answer

re  ok, do you have a ?  or /!\ in the device manager under network adapters?  if you have any on other devices, let me know and post a screenshot if possible  @+  -- the radiation level is higher at the employment agency than at Chernobyl

billmaxime · Answer

re  yes, I saw  however, in the screenshot, your HDD and your Processor are at 100%...  that's not great at all  @+  -- the radiation level is higher at the employment center than in Chernobyl

billmaxime · Answer

re  start the command prompt as administrator (right click)  in the window that opens, copy/paste this command >> cmd /c ipconfig/all >> ipconfig.txt & notepad ipconfig.txt and click ENTER  post the report.TXT that will appear on your desktop via 1 copy/paste in your response  @+  -- the radiation level is higher at the unemployment office than at Chernobyl

billmaxime · Answer

re  cmd /c ipconfig/all >> ipconfig.txt & notepad ipconfig.txt  yes, but without the quotes  @+  -- the radiation level is higher at the employment office than at Chernobyl

billmaxime · Answer

re  you perform the manipulation of this message from GentlemanSeynox (whom I greet by the way)  https://forums.commentcamarche.net/forum/affich-35410221-mon-pc-fixe-ne-detecte-plus-ma-box-sfr#11  when you are on this page, uncheck the IPV6 and click OK    once that's done, restart the PC and let me know how it goes  @+  -- the radiation levels are higher at the employment office than in Chernobyl

RedShoot174 · Answer

I just remembered that yesterday afternoon, I uninstalled my free AVG Antivirus to install a new one, Bitdefender, for which I had gotten a promotional code. However, after I uninstalled AVG and turned off the computer, when I wanted to install Bitdefender that same evening, just a few hours after uninstalling AVG, that's when the problem occurred.

billmaxime · Answer

re  I just remembered that yesterday afternoon, I uninstalled my free AVG Antivirus to install a new one, Bitdefender, for which I had a promotional code. However, after I uninstalled AVG, I turned off the computer, and when I wanted to install Bitdefender that same evening, just a few hours after uninstalling AVG, that's when the problem occurred.  1) Search for both AVs on your PC and uninstall everything "cleanly"  2) Perform a system restore to a date before the operation  /!\ IPv4 autoconfiguration address . . . : 169.254.156.161 (preferred)  You have a temporary IP address  Let me know what that gives  @+

billmaxime · Answer

re  each antivirus has its uninstallation tool  for AVG, it's >> AVG Remover which you can download from this page  https://support.avg.com/SupportArticleView?l=fr&urlname=How-to-uninstall-AVG  run it as administrator (right-click) etc...  after uninstallation, restart the PC  let me know if it found any leftover items  @+  -- the radiation level is higher at the job center than at Chernobyl

billmaxime · Answer

re  ok  @+  -- the radiation level is higher at the employment office than in Chernobyl

billmaxime · Answer

re  AVG Web TuneUp  in Cortona, copy/paste >> AVG Web TuneUp  in the search results, right-click >> AVG Web TuneUp >> open file location  delete from the file location  let me know what it gives  @+  -- the radiation level is higher at the employment agency than in Chernobyl

billmaxime · Answer

re  there's no more Cortana, but the AVG uninstallation software still detects it  Where does AVG Remover detect it?  @+  -- the radiation level is higher at the job center than at Chernobyl

billmaxime · Answer

re  download SystemLook to your desktop click here  run it as an administrator (right-click)  in the window that opens, copy/paste this:  :regfind AVG :folderfind AVG  click on Look  let the tool work  the report will display in Notepad  post the report via 1 copy/paste  @+  -- the radiation level is higher at the unemployment office than at Chernobyl

billmaxime · Answer

re  ok, download OTL (from Oltimer) to your desktop click here  run it as administrator (right-click)  under "Customization", copy/paste the text from this link  https://cjoint.com/c/HFkqzGg8YTl  click on correction  the report will appear on your desktop, post it via 1 cjoint in your reply >> https://www.commentcamarche.net/faq/29493-utiliser-cjoint-pour-heberger-des-fichiers  @+  -- the radiation level is higher at the employment center than at Chernobyl

billmaxime · Answer

re  I won't hide it from you, but I'm starting to lose a bit of hope :/   You shouldn't :)  It only showed errors: "Error: Unable to interpret ... "   It's okay, they're just registry keys  Check your DMs at the top of the page  @+  -- The radiation level is higher at the employment office than in Chernobyl.

billmaxime · Answer

re  the envelope next to your nickname at the top of the page  @+  -- the radiation level is higher at the job center than at Chernobyl

RedShoot174 · Answer

So the issue is finally resolved, I sent it to a technician. Apparently, I had a problem with my PC that was changing the IP address. He reset it and now it works again.

My Desktop PC no longer detects my SFR Box.

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