LAN limited or no connectivity - cannot renew IP

October 4, 2012 at 13:48:02
Specs: Windows XP Home ed
NVM ----- just solved it, changed the speed & duplex to lower setting, now it works, no idea why I just listened to a suggestion from past threads on similar problem

Hey, my desktop has lost connection since Monday thru the Ethernet connection, it was working in the morning and suddenly stopped after I came home in the afternoon, been trying to solve this through suggestions of other similar cases online but still havn't solved the problem yet.

I have another Laptop which is working through wireless and LAN using the same cable, its only the Desktop which is having problems at the minute.

Here is some information that might help.


Windows IP Configuration

Host Name . . . . . . . . . . . . : wai-6c440cfb741
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Mixed
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8168C(P)/8111C(P) PCI-E Gigabit Ethernet NIC
Physical Address. . . . . . . . . : 00-24-8C-36-11-35
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IP Address. . . : 169.254.88.108
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :


I tried a few things that didnt help, Ill list them so maybe it can help solving my problem:

ipconfig /renew shows no response for a few seconds, then displays the message 'An error occurred while renewing interface Local Area Connection : unable to contact your DHCP server. Request has timed out.'

I tried to enter the IP address manually, not sure if I entered them correctly, I copied the numbers from the laptop, but I still get 'limited or no con...'

Tried booting into safe mode with networking, same message

Not sure what it does but I tried dnsflush, didnt help

Reinstalling the NIC, didnt help

Tried to change the Physical Address to the same as the working laptop, using SMAC, didnt work.

used CCleaners to scan the registries and deleted the faulty ones and still nothing and also tried System restore to a weeks pior.

might have tried a few others but dont remember right now, hope someone can help me get it back to working, as the next thing I might try is install Window 7 and install everything again and hope it works, but I rather not unless its the last and only step to fix this, thanks


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#1
October 4, 2012 at 14:20:09
Thanks for posting back with the fix.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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#2
October 4, 2012 at 14:30:59
You might want to check that the connecting cable is cat 5E or cat 6. Although you have solved the problem there must be an underlying cause. If it's not the cable then you have a bad port on the router (btw, did you try power cycling it?) or a bad NIC.

To anyone else trouble-shooting this sort of problem, it is not advisable to use the same IP address as another computer and it is definitely not a good idea to try to use the same MAC address. Even if the other computer is not running there is a potential for problems with cached ARP table entries.


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#3
October 4, 2012 at 19:58:39
how do i check the cable?

Do you mean the port as in where i plug the cable? as there are 4 ports and i tried all of them and the result was same

i dont know what power cycling is so idk if I did it or not, sorry


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Related Solutions

#4
October 4, 2012 at 23:39:43
The cable normally has the cat level printed on it. If not then you can only check by trying a new cat 5E cable (if the speed matters to you).

Power cycling means the old "turn off and turn on again". This often cures slight glitches like this.


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#5
October 5, 2012 at 07:32:51
LOL

When I first read this, I saw the OP had edited it and said, "nevermind, I solved it" so I stopped reading.

I have another Laptop which is working through wireless and LAN using the same cable, its only the Desktop which is having problems at the minute.

Ok, this rules out the router and means the issue is local to the one PC.

Since you've ruled out the cable (cable worked with laptop so it must be good) and it's still not working the next thing to do is check to ensure you have the most recent drivers for your computers network interface (NIC). If you don't, download and install the newest available and try again. If this solves the issue you're done. If not, I would recommend trying a TCP/IP stack reset.

To reset your TCP/IP stack first open a command prompt window (ie: Start >> Run >> type cmd and hit Enter) and perform the following command:

netsh int ip reset c:\resetlog.txt

Note If you do not want to specify a directory path for the log file, use the following command:

netsh int ip reset resetlog.txt

Then reboot the computer.

If that doesn't fix the issue either, you may need to go into Device Manager and uninstall the NIC and then reboot and let Windows "find" and reinstall the the drivers.

If that doesn't fix the issue, you might have to buy a new NIC and put it in the desktop. If it comes to that and the present NIC is onboard (built onto the motherboard) remember to go into the BIOS and disable the onboard NIC before trying to use the replacement.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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#6
October 5, 2012 at 07:33:41
yea I usually start off by power cycling it but this time it didnt help, ill come back after i checked the cable

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#7
October 5, 2012 at 09:32:48
@CurtR - I'm not convinced that the cable can be ignored as a possible cause. Not all chipsets are equal, so one might support gigabit speeds on cat 5 whilst another wouldn't. I think it's a mistake to rule anything out without testing.

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#8
October 5, 2012 at 10:32:56
ijack

Without a proper tester/certifier (I have two sitting here in my office) it's hard to guarantee any cable. However, considering the OP originally stated:

"Hey, my desktop has lost connection since Monday thru the Ethernet connection, it was working in the morning and suddenly stopped after I came home in the afternoon,"

It's safe to assume the cable was good before the PC lost connectivity. Then the OP goes on to say:

"I have another Laptop which is working through wireless and LAN using the same cable,"

Since the exact same cable works with the laptop it's almost certainly the computer itself, be it hardware or software that's the issue. I'm betting hardware as I said above.

Hmmmm....come to think of it, you basically said the same thing......lol

"Not all chipsets are equal, so one might support gigabit speeds on cat 5 whilst another wouldn't. "

If you are correct and it is the chipset, then it's the hardware, not the cable that's at fault here. Honestly, I've never run into a 1000 Mbps capable NIC that didn't run at 1000 Mbps on all Cat5e and better cable.

I've seen a few that only ran at 100 because they weren't made proplerly. If, for instance, wire #7 doesn't get punched correctly, you'll only get 100 Mbps. But that's the cable, not hardware and no matter what NIC's you connected that cable to, it would only get 100 Mbps.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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#9
October 5, 2012 at 11:15:32
My suggestion was that the OP might be using cat 5 cable, which is pretty marginal with gigabit. That might explain the sometimes works/sometimes doesn't, but works fine at lower speeds. I may be completely wrong, but it's a simple thing to check by substituting a known good cat 5e cable.

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#10
October 5, 2012 at 12:05:42
My suggestion was that the OP might be using cat 5 cable, which is pretty marginal with gigabit

Honestly, I thought you were referring to Cat5e and just skipped the "e" part like I do so often. Not that it matters a whole lot since according to the IEEE 802.3 standard, Cat5 is spec'd for 1000 Mbps bandwidth.

That aside, I will admit it's been a long time since I worked with any Cat5 and that I do not recall ever working with Cat5 on a 1000 Mbps connection so I can't say that it would, or wouldn't be the problem.

But I am sitll willing to bet the issue is the NIC, not the cable

;)

Unless the OP bought that patch cable some 10+ years back, it's going to be minimum Cat5e.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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#11
October 5, 2012 at 12:17:33
Just checked the cable its Cat 5e

Also I did the netsh int ip reset c:\resetlog.txt reset before, which also didnt work, and also tried reinstalling the NIC, but I didnt reboot after uninstall, I reinstalled it about 10 seconds after uninstalling it

I noticed my internet slowed down a lot on my desktop after I managed to get my connection back by lowering the Speed&Duplex, which was set to 10Mbps Half Duplex. But I went to update the driver for the NIC which reseted the Speed&Duplex back to auto and my connection is still working but not sure if my internet speed is still affected, but I'm streaming a video right now at 720p and it seems to be okay.


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#12
October 5, 2012 at 13:57:26
You didn't say if reinstalling the NIC did the trick or if it was the driver upgrade. It would be nice to know.

As long as it's running fine, I wouldn't mess with it. But if it breaks again, I would suggest getting a replacement NIC.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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#13
October 5, 2012 at 14:07:32
What did the trick was lowering the Speed&Duplex to 10Mbps Half Duplex

When I reinstall the NIC through Device Manager it didnt work, but after I lowered the Duplex and got conection back, I updated the driver and now I can run with the Speed&Duplex with auto setting


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#14
October 6, 2012 at 06:39:50
I updated the driver and now I can run with the Speed&Duplex with auto setting

That's what I was looking for....what exactly fixed the issue.

If you don't mind, would you look and see what your connection is now. I'm hoping it's either 100/Full or 1000/Full depending on your router's LAN ports.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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#15
October 7, 2012 at 11:32:30
Where do I check that? the setting is on Auto Negotiation since the driver update

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#16
October 8, 2012 at 07:54:00
Go into the properties sheet for your network interface. Click on the "Configure" button. In the window that opens, click on the "Link Speed" tab and it shows you near the top what your connection/duplex rates are.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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