Ethernet problems, unidentified network (Solved)

[lukesterboy]

So basically I made a post the other day saying about wiring a connection from ethernet that has been ran in my house. Changing from rj11 to rj45. Anyway blah blah blah. I got that working, at least it works on several laptops I tested.

 

Now I just received a desktop I brought the other week. It's a hp prodesk 600 G1 sff if that is relevant.

 

Basically when I plug the ethernet in it says unidentified network and won't pickup an IP from DHCP, I've tried assigning it an IP and then pinging the router but most requests fail. Using all the exact same cables into the wall port in my room and out at my router but instead using a laptop works perfectly fine. Fast speeds, no packet loss or drops etc.

 

But when just changing the computer from my laptop to the desk I run into all sorts of problems.

 

So I'm sitting here scratching my head wondering what it could be. My guess is the computers tollerence is just not as strong as the laptop for running on which is not the best wiring. But it could be something else. Could this be a driver or software issue or definitely hardware? The fact that half the packets make it confuses me.

[Skiiwee29]

It is probably 1 of 2 things. A driver problem or port problem. First, try uninstalling the drivers in device manager then reboot the PC and let windows re-install the drivers. If that does not work, then try getting a PCIe card and test that. 

[Leonard]

Once you have an unidentified network you will get that sort of ping. Your issue maybe because of any past configuration/s you may have done either a static IP/DNS address. now you say the desktop will not pick up a connection with DHCP do you have DHCP as auto on both the router/modem and the desktop? Try resetting the desktop to auto then reboot your router after checking if DHCP is enabled and see if it picks up a connection.

[lukesterboy]

10 minutes ago, Leonard said:

Once you have an unidentified network you will get that sort of ping. Your issue maybe because of any past configuration/s you may have done either a static IP/DNS address. now you say the desktop will not pick up a connection with DHCP do you have DHCP as auto on both the router/modem and the desktop? Try resetting the desktop to auto then reboot your router after checking if DHCP is enabled and see if it picks up a connection.

What do you mean by the first bit? I've DHCP is definitely enabled on the router as other devices connect to it fine, and I've already tried with auto configuration on the pc and it just never gets its own ip.

 

It just stays on this ip...

[lukesterboy]

11 minutes ago, legacy99 said:

It is probably 1 of 2 things. A driver problem or port problem. First, try uninstalling the drivers in device manager then reboot the PC and let windows re-install the drivers. If that does not work, then try getting a PCIe card and test that. 

When I uninstall it asks me if I want to delete the driver software for this device, do I want to? Or just uninstall? Also nothing wrong with the ethernet because when I bring the router to the computer it connects fine. I'm so confused.

[Skiiwee29]

Yes, delete the software. When you reboot, it will install drivers only, no software. 

[lukesterboy]

6 minutes ago, legacy99 said:

Yes, delete the software. When you reboot, it will install drivers only, no software. 

Just tried it with no hope. I'm so confused what it could be. I've tried using a wireless extended that connects to the router by wireless and has an Ethernet port on the bottom (basically an external wireless adapter) with the exact same cable in using to plug it into the wall and that works fine. So it's not the cable? And it's not the computer? To a certain extent. 

 

 

Infact i just checked device manager now and after ticking the box to delete software i no longer am able to get the ethernet to work on any connection now. It says windows was unable to install your ethernet controller?

[Skiiwee29]

Thats wierd... it should have loaded up automatically... So go on your laptop and download the latest drivers from the motherboard manufacture. 

[lukesterboy]

17 minutes ago, legacy99 said:

Thats wierd... it should have loaded up automatically... So go on your laptop and download the latest drivers from the motherboard manufacture. 

Done that installed it. Still the same problem :'(

[Skiiwee29]

4 minutes ago, lukesterboy said:

Done that installed it. Still the same problem :'(

so you say you are connected over a wifi extender correct? What happens if you take your computer and directly plug it into the router? You may need to move the computer closer to the router to test it. 

[lukesterboy]

4 minutes ago, legacy99 said:

so you say you are connected over a wifi extender correct? What happens if you take your computer and directly plug it into the router? You may need to move the computer closer to the router to test it. 

Correct and I did that earlier. Instead I moved the Router to the pc since I'm struggling to get an ethernet local connection let alone a internet connection ?. And that worked fine that way. So it's when the connections on the wall are introduced that problems occur....ideas? Don't forget some packets make it and some don't 50/50.

[Skiiwee29]

Just now, lukesterboy said:

Correct and I did that earlier. Instead I moved the Router to the pc since I'm struggling to get an ethernet local connection let alone a internet connection ?. And that worked fine that way. So it's when the connections on the wall are introduced that problems occur....ideas? Don't forget some packets make it and some don't 50/50.

Is it a wifi range extender or a Powerline ethernet adapter?

[lukesterboy]

Just now, legacy99 said:

Is it a wifi range extender or a Powerline ethernet adapter?

Range extender. Does it matter? Either way it works using the ethernet cable in that. Which is why I'm so confused and scratching my head....

[Skiiwee29]

Just now, lukesterboy said:

Range extender. Does it matter? Either way it works using the ethernet cable in that. Which is why I'm so confused and scratching my head....

So from the symptoms I have gathered that this is a wifi range extender with an ethernet plug on it that you are plugging directly into your PC. The connection works 100% on other devices such as laptop but not on your PC. This is telling me that your ethernet adapter on your desktop is at fault. If you have a different PCIe card, try that out. Otherwise your only other option is either to move things around so you can plug the computer directly into the router, or run an ethernet cable long enough so you can plug directly into the router.

[lukesterboy]

5 minutes ago, legacy99 said:

So from the symptoms I have gathered that this is a wifi range extender with an ethernet plug on it that you are plugging directly into your PC. The connection works 100% on other devices such as laptop but not on your PC. This is telling me that your ethernet adapter on your desktop is at fault. If you have a different PCIe card, try that out. Otherwise your only other option is either to move things around so you can plug the computer directly into the router, or run an ethernet cable long enough so you can plug directly into the router.

So physically you think the ethernet adapter hardware on the computer is at fault? When it works directly plugged into the router? It can't be. Do you think it could be because it's stuck in this "unidentified network" and stuck on "public network" and won't let me change it. What causes this and what's the fix maybe that will help me fix my problem?

[Skiiwee29]

you can try and go into command prompt and type ipconfig /release then type ipconfig /renew

 

[lukesterboy]

26 minutes ago, legacy99 said:

you can try and go into command prompt and type ipconfig /release then type ipconfig /renew

 

Tried that. Getting an IP is not a problem since I can just assign one it's just the actual connection. The fact that I can send data to another device on the network through wireless (so it must be going through the router) with 1ms latency, no packet loss and fast speeds. I am baffled. ?

[Skiiwee29]

What device resides at 192.168.0.45 on your network. 

[sftgunner]

Don't think anyone else has mentioned it, but it may be worth manually setting a static IP on the desktop... just in case it is having issues with receiving data from the DHCP server.

Edited July 19, 2017 by Gunner23
Clarity about setting a static IP

[Leonard]

2 hours ago, lukesterboy said:

What do you mean by the first bit? I've DHCP is definitely enabled on the router as other devices connect to it fine, and I've already tried with auto configuration on the pc and it just never gets its own ip.

 

It just stays on this ip...

I mean just what i said, for DHCP to work correctly both the device and the modem/router should have DHCP enabled and not one or the other, hope that was clear enough.

 

From this screendump it shows that the desktop is not getting the default gateway to connect to, this could be because of the modem\router and or powerline/wifi extender* needing to be power cycled, it could also mean your TCP/IP needs to be reset for that PC but the ethernet adapter is working otherwise you would not get anything. That 169.254.197.122 is from windows, when there is a network problem with limited connection windows puts that meaning you may be connected to say a connection either LAN or WIFI but you are not connected to the internet. If i remember correctly it is called the link local address from windows

 

Before you do the below reset do this one to ensure that DHCP is enabled on the PC...netsh interface ip set dns 1 dhcp then reboot the PC.

 

To reset the TCP/IP you open CMD with administrator rights and type netsh int ip reset c:\resetlog.txt then you reboot the PC. What does that code do it resets these two registry entries...

1.  SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\ 
2. SYSTEM\CurrentControlSet\Services\DHCP\Parameters\ 

 

[lukesterboy]

12 minutes ago, Leonard said:

I mean just what i said, for DHCP to work correctly both the device and the modem/router should have DHCP enabled and not one or the other, hope that was clear enough.

 

From this screendump it shows that the desktop is not getting the default gateway to connect to, this could be because of the modem\router and or powerline/wifi extender* needing to be power cycled, it could also mean your TCP/IP needs to be reset for that PC but the ethernet adapter is working otherwise you would not get anything. That 169.254.197.122 is from windows, when there is a network problem with limited connection windows puts that meaning you may be connected to say a connection either LAN or WIFI but you are not connected to the internet. If i remember correctly it is called the link local address from windows

 

Before you do the below reset do this one to ensure that DHCP is enabled on the PC...netsh interface ip set dns 1 dhcp then reboot the PC.

 

To reset the TCP/IP you open CMD with administrator rights and type netsh int ip reset c:\resetlog.txt then you reboot the PC. What does that code do it resets these two registry entries...

1.  SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\ 
2. SYSTEM\CurrentControlSet\Services\DHCP\Parameters\ 

 

Tried both with no luck. Bearing in mind I don't actually have broadband yet, im waiting on activation. Anyway this shouldn't matter because I'm struggling to get a connection with the router let alone the internet. Im sure this has to be a problem with the wiring job I did. Since directly plugging into the router works fine.

[Leonard]

Just now, lukesterboy said:

Tried both with no luck. Bearing in mind I don't actually have broadband yet, im waiting on activation. Anyway this shouldn't matter because I'm struggling to get a connection with the router let alone the internet. Im sure this has to be a problem with the wiring job I did. Since directly plugging into the router works fine.

it could very well be but only you would know how to fix that or scrap it and use already configured wire/cables. Did you used twisted pair?....that chit could be easily messed up.

[lukesterboy]

6 minutes ago, Leonard said:

it could very well be but only you would know how to fix that or scrap it and use already configured wire/cables. Did you used twisted pair?....that chit could be easily messed up.

Yes. Well if you read my second to latest most recent post you can see what my situation was... I might clean up the cables tomorrow and see if that has any impact. Thing is I've tried it with 3 other machines and they all work fine on the exact same setup of cables, full speed with no packet loss.

 

edit: I have a feeling it's the join in the second bedroom, it's literally just the two cables twister together. And lots of straight cable not very twisted. Also it could be touching the metal back box of the socket/faceplate.

[Leonard]

10 minutes ago, lukesterboy said:

Yes. Well if you read my second to latest most recent post you can see what my situation was... I might clean up the cables tomorrow and see if that has any impact. Thing is I've tried it with 3 other machines and they all work fine on the exact same setup of cables, full speed with no packet loss.

 

edit: I have a feeling it's the join in the second bedroom, it's literally just the two cables twister together. And lots of straight cable not very twisted. Also it could be touching the metal back box of the socket/faceplate.

Well best of luck with your project.

[lukesterboy]

Just now, Leonard said:

Well best of luck with your project.

??Thanks. I'm about to give up cable and just go with wireless. Thing is my ISP gave me a router that has crap wireless which is why I took up the wired project to try and save me money by buying £5 worth of 2xrj45 modules rather than a new router and a wireless device.