Solved LAN connected but no internet

[Rob J L]

Hi

I have recently tried to install Windows 7 HP 64 but from a USB to an SSD. However I am encountering an issue with the internet connection

My mobo is an Asus z97p and I install the drivers for the realtek Ethernet after the Intel chipset drivers. I either get a hom connection right away or it starts with unidentified network.


What happens is that it will connect to my router but Ping is intermittent with 3 out of 4 or all requests timing out. And I have no internet. On occasion it will tell me I have the internet but I have no ping to for example Google same request time out issue.

Sometimes ping tells me it can't find host Google

I previously had a SATA HDD with 2 win 7 installs as well as the SSD and I had to use Acronis to restore one of the HDD OS installs and the internet connection issue started then.

I don't believe it's a mobo issue as it was fine prior to installing the SSD and I did temporarily manage to resolve this until I messed with the MBR last night, because easybbcd told me windows was booting in efi mode!!!!!

I have tried all sorts from reading these and other forums but nothing solves this! I am having to use an android tablet to get on the internet so posting logs and stuff is not ideal if at all possible.

The same issue seems to present itself in all clean installs no matter what drive I use and also in all acronis images I restore. And I have rebooted my router several times.

This has to be windows related, possibly MBR related, but I don't know what it is!

Please can anyone here help?

TIA

 

[Ztruker]

First question, what does Device Manager look like? Any yellow marks. Expand Network Adapters, is your network adapter shown there?

What is you network setup? Do you use a router or are you connected directly to the ISP modem?

Open a Elevated Command Prompt:

XP, Vista or Windows 7:

Click on the Start button and type cmd.
DO NOT press Enter or click Go.
Look at the upper part of the window and you will see cmd.exe.
Right click on it and select Run as Administrator.

Windows 8, 8.1 or 10:

Press WIN + X to open Start context menu.
Select Command Prompt (Admin)​.

Paste the following into the Command Prompt window, exactly as shown, including double quotes:

cmd /c "ipconfig /all > postme.txt & ping yahoo.com >> postme.txt & reg query "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings" | find /i "proxy" >> postme.txt & notepad postme.txt & del postme.txt"

and press ENTER.

A file will open in Notepad. Please copy and paste the contents here. Close the Notepad window and the file will be deleted and the Command Prompt window will also close. Post results in a reply here.

 

[Rob J L]

Ok thanks, here's the postme.txt, I've managed to get hold of a Tenda W311U wireless USB stick that I can use for internet on the affected PC rather than rely on my Android tablet...

I am a little confused though, why does exact same problem present itself across multiple installs of Windows 7, both fresh clean installs. and those restored by Acronis True Image Home, regardless of the disk used, if the issue is a Windows (7) issue - I'm wondering if all of a sudden my motherboards (Asus Z97-P) Realtek Ethernet port has become faulty, but as it's virtually brand new and nothing else had failed I wonder why!?!

Windows IP Configuration

Host Name . . . . . . . . . . . . : Morpheus
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : lan

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : lan
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller #2
Physical Address. . . . . . . . . : 14-DD-A9-E1-08-32
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::c54b:cd8a:460f:929e%14(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.4(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 11 November 2015 18:40:35
Lease Expires . . . . . . . . . . : 12 November 2015 17:35:07
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 336911785
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1C-FD-EA-6E-50-E5-49-32-66-60
DNS Servers . . . . . . . . . . . : 192.168.1.1
192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.lan:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : lan
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Pinging yahoo.com [98.138.253.109] with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 98.138.253.109:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
AutoConfigProxy REG_SZ wininet.dll
MigrateProxy REG_DWORD 0x1
ProxyEnable REG_DWORD 0x0
ProxyHttp1.1 REG_DWORD 0x1

 

[foxyrick]

This really looks more like a hardware problem to me, especially with the intermittent pings. If I was getting such issues, the first thing I would try is reseating the network cable, followed by a new network cable.

 

[Ztruker]

Nothing obvious there other than ping not working as you said.

Did you try the Windows 10 Realtek driver?

Win10 Auto Installation Program (SID:1763459) 10.003 2015/10/309498k

 

[cyclops]

Rob, I see that your only DNS server is your own router's ip address. Try this just for the hell of it. Manually add 1 or 2 external DNS servers. You can try the free Google DNS servers as see in the first screenshot provided or copy the one from my ipconfig. I have seen many times 192.168.1.1 is not reliable.

View attachment 375702
View attachment 375701

Get back to us and let us know how it goes.
Oh yeah, you might want to cover your MAC addresses when putting things out to the public.

 

[Rob J L]

This really looks more like a hardware problem to me, especially with the intermittent pings. If I was getting such issues, the first thing I would try is reseating the network cable, followed by a new network cable.

Yes I think that also, although I'm hoping not as the PC is only 4 or so weeks new to me, and I would assume the parts were brand new out of the box, plus it would mean RMA'ing the PC and I can't really be without it.

However it is odd that Windows 7 tells me it is connected to the internet (when it's not telling me it's on an unidentified network), surely it wouldn't recognise the onboard LAN device at all if it was faulty? It's also odd that I did cure the problem the other night, albeit temporarily it seems (by restoring my C partition from an Acronis backup, then taking all drives out, then putting in my SSD, then installing windows on that, then putting my normal HDD's back in with the SSD, and then running the windows isntall disk (on a USB stick) from boot and letting it find the original OS's and "repair" a problem), until I decided to start mess with Easybcd and the MBR, after it told me Windows was running in efi mode.

Sadly the same steps that cured the issue haven't worked since.

I've also tried different cables (of the one's I have, I can't see them all being faulty if at all). No joy. I know it's not my cables or my connection to the router because an old laptop I have works fine with the same wired ethernet connection.

And I've tried powering down my router and turning it back on again.

If it is a hardware problem it's localised to my PC.

I am going to try a Linux Live CD (if I can use it from a USB stick, as I don't have a CD/DVD drive) and see if that can access the internet, then I can rule out hardware failure.

Nothing obvious there other than ping not working as you said.

Did you try the Windows 10 Realtek driver?

Win10 Auto Installation Program (SID:1763459) 10.003 2015/10/309498k

No. The OS is Windows 7.

Rob, I see that your only DNS server is your own router's ip address. Try this just for the hell of it. Manually add 1 or 2 external DNS servers. You can try the free Google DNS servers as see in the first screenshot provided or copy the one from my ipconfig. I have seen many times 192.168.1.1 is not reliable.

View attachment 375702
View attachment 375701

Get back to us and let us know how it goes.
Oh yeah, you might want to cover your MAC addresses when putting things out to the public.

Thanks, I've tried various DNS's, including Google's, and my own ISP's and it still doesn't work.

Along with various command line options such as ipconfig /release /renew, and netsh commands I've come across.

As it is now if I have the IP and DNS set to obtain automatically I get an unidentified network, if I set the IP address and/or DNS servers Windows 7 tells me it's connected to my home network and the internet but I can't ping my router or ping any websites (by name or IP), and obviously I can't load pages in a browser and any apps which check/download from the internet can't do so.

Wireless seems to be working fine though, but I don't trust it for gaming and streaming and I shouldn't be having a problem with the wired LAN.

 

[cyclops]

If your NIC is integrated on the MOBO, maybe it's time to try a cheap add on NIC card. I'll be around if you want to stop by and pick one up just to try

 

[Rob J L]

Yes I bought one on Amazon last night, just waiting on it's delivery, hopefully it'll work.

I just tried a Linux install off a USB made by a windows program called LiLi (Ubuntu 15.04 or something, I'm not familiar with Linux) and that seems to have the same problem (although I'm unsure if I needed to install a Realtek driver or not) because it said it was connected to the internet, but nothing was coming up in firefox - of course I have no idea if Ubuntu has a ping function or other similar functions...

So I'm thinking it is hardware. But how can the onboard LAN gone faulty just from me installing an SSD, fiddling with a USB headers to put a front panel in (forgot to mention that in my OP, but I'm not sure it's relevant) and restoring from back or clean installing Windows 7?

 

[cyclops]

Electronics on a MOBO or IC chip are extremely sensitive to static discharge even if you were unaware that you carried a charge. Walking 2 steps across a carpet with an IC chip in your hand can zap it dead. I always wear a static discharge strap attached from me to the machine chassis and have never zapped anything, while a former co-worker of mine zapped an IC right in front of me. He was not a happy man. Anyway good luck, keep us posted.

 

[foxyrick]

Trying a live boot linux would have been my third suggestion. It does sound like the NIC is failing.

As mentioned above, ic's can fail from just an unlucky bit of static. I've been an electronics nut for decades and have an static-safe work area at home (dissipative carpet and desktop etc), so i's something I'm familiar with. Static damage can also be cumulative; a little bit at a time eventually causes problems. It could even just be coincidence.

Typically ic's don't just fail completely from static (apart from lightening - had that twce!), but start behaving erratically. Windows might well manage to get a few packets out to the network for a connectivity test (that's how it knows you have a connection) in a 'good' moment for the interface.

Linux has a ping; it works similarly to windows. Just bring up a console and type it in. You can see you network details with ifconfig instead of ipconfig.

It sounds like you have you answer and solution though. I understand the problems of being without a PC if you RMA the board, but bear in mind that if it is/has become faulty, the network interface might not be the only thing that is on the way out.

Good luck getting it sorted.

 

[cyclops]

Few people realize what the potential is behind static, but sure as hell blows stuff up if somebody gets charged up and touches the wrong part.

 

[Rob J L]

Well this is odd.

Today (2 minutes before posting this) I have put back into my case the USB front panel (an Akasa one), and both of the Sandisk 240GB SSD's I tried (although I only tried one at a time).

I turned the power off at the switch on the back of the PC (as you should anyway), and then I pushed the power button on the front a few times to expend any residual electricity in the circuits...

...and whatdayaknow the onboard NIC is working again and I have ping to my router, ping to google, and I'm posting this using the onboard NIC!!]

Very odd behaviour!

And I've been able to migrate the OS to one of the SSD's.

Thank you for all the advice though guys. Much appreciated.