clear arp cache

zeeman49 · 03-11-2006, 12:51 PM

Exactly how do I clear my ARP cache on windows xp, please be precise ...newbie

thanks

Will.Spencer · 03-12-2006, 04:46 AM

Click the <Start> button.
Click <Run>.
Type in "cmd" and press <RETURN>.

In the command shell which opens, type in "netsh interface ip delete arpcache" and press <RETURN>.

Your results should look like this:

Code:

C:\>netsh interface ip delete arpcache
Ok.

zeeman49 · 03-12-2006, 11:07 AM

Thanks for your help. It worked as you explained and I hope this will allow me to not get thrown off of the internet so frequently.

Krondo · 04-23-2006, 02:18 PM

i did what was posted here cause this is the exact problem im having but this is what it says when i press enter. Any advice?

interface with this name is not registered with this router

Will.Spencer · 04-23-2006, 02:26 PM

Quote:

Originally Posted by Krondo

interface with this name is not registered with this router

Silly Microsoft Windows has convinced itself that it is a router.

We need to put Windows back into its place.

To workaround this bug in Microsoft Windows:

Click the <Start> button
Click the <Control Panel> button
Switch to "Classic View" if you are in "Category View"
Click <Administrative Tools>
Click <Computer Management>
Double-click <Services and Applications>
Double-click <Services>
Scroll down to <Routing and Remote Services>
Double-click <Routing and Remote Services>
Examine the "Startup Type"
The options are "Automatic", "Manual", and "Disabled"
Set the "Startup Type" to "Disabled"
Click the <OK> button

Now try to clear your arp cache. It should work this time with no error messages.

Kenshin · 06-11-2006, 03:49 AM

What is the use of clearing arp cache ?

And if u don't mind, can anyone tell me what is arp cache ?

Will.Spencer · 06-11-2006, 04:53 AM

Quote:

Originally Posted by Kenshin

... can anyone tell me what is arp cache ?

The ARP cache is a table which keeps track of mappings between the MAC addresses used on the Data Link Layer and IP addresses used on the Network Layer.

For more information, please refer to What is ARP? and What is the ARP Cache?

Quote:

Originally Posted by Kenshin

What is the use of clearing arp cache ?

Ocassionally, the ARP cache will become corrupt. Clearing the ARP cache will return the system to normal operations.

Also, sometimes it is useful to clear the ARP cache if you change a device you are directly connected to on a network. For example, let's say that your PC is connected to a router network router with an IP address of 192.168.1.1 and a MAC address of 00:60:70:A1:B2:C3. One day, you replace that router with a new router. The new router has a MAC address of 00:60:B0:A1:B2:C3, but you configure it with the same IP address as the old router. Your ARP cache still remembers the old mapping. You have two choices -- you can wait that entry in your ARP cache to timeout, or you can manually clear the ARP cache and get back to work immediately.

Tigerjimd · 08-25-2006, 04:54 PM

*** IN-FREAKIN-CREDIBLE !!! ****

Will Spencer is a Genius !! Wow, my surfing-page-flipping speed has
improved Literally 20x fold!!! An Hour of freakin Microsoft Support could not
freakin figure out how to help... but a 15 second post by Will spencer...
.....Clearing the ARP cache - windows xp:

[Click start--> Run--> "cmd"--> type in "netsh interface ip delete arpcache"]

And that's it..... my Life Magically Gets Fixed in 15 seconds Flat !!
Page Surfing Power Goes Up 20x speed !! AMAZING!!
A Million Thanks Will Spencer!!!

Will.Spencer · 08-25-2006, 07:19 PM

I'm glad we could help!

soa00 · 08-26-2006, 01:08 PM

perhaps you could also help me. i recently moved into a new apartment and set up a new network using a new netgear router. i'm a big newbie when it comes to networks, but i know how to set them up and what not. the network works fine for one laptop, but with another, it is only able to connect to the network but not access the internet. It can't open web pages either wirelessly or wired. whenever i try to repair the internet connection, XP tells me that the ARP cache can't be cleared. i've cleared it through the command prompt, but then when i try to fix the connection in XP, it still tells me the cache can't be cleared. i'm not even sure if this will help restore surfing capability, but it's a start. thanks for any help.

Will.Spencer · 08-26-2006, 04:39 PM

Quote:

Originally Posted by soa00

XP tells me that the ARP cache can't be cleared. i've cleared it through the command prompt, but then when i try to fix the connection in XP, it still tells me the cache can't be cleared.

Occasionally, Microsoft Windows will fail to clear the ARP cache because Windows is configured as a router.

To work around this Microsoft Windows bug, just disable Routing and Remote Services:

Click the <Start> button
Click the <Control Panel> button
Switch to "Classic View" if you are in "Category View"
Click <Administrative Tools>
Click <Computer Management>
Double-click <Services and Applications>
Double-click <Services>
Scroll down to <Routing and Remote Services>
Double-click <Routing and Remote Services>
Examine the "Startup Type"
The options are "Automatic", "Manual", and "Disabled"
Set the "Startup Type" to "Disabled"
Click the <OK> button

Next, clear your arp cache again. It should work this time without any error messages.

IneedHelp911 · 09-03-2006, 01:34 PM

OK after the cmd--> netsh interface...--> im trying to repair my connection but im still getting an error message reading: Windows could not finish repairing the problem because the following action cannot be completed: TCP/IP is not enabled for this connection. Cannot Proceed. pplllzzz help!!

Will.Spencer · 09-03-2006, 03:25 PM

You will have to enable TCP/IP for that connection.

There are a number of ways to do this. Here is roughly how I would proceed:

<Start>
<Control Panel>
<Network Connections>
Double-click on the connection you wish to edit
<Install>
Highlight Protocol
Click <Add>
Highlight Microsoft
Highlight Internet Procotol (TCP/IP)
Click <OK>

IneedHelp911 · 09-03-2006, 11:06 PM

ok, I just tried that the only thing is I think I need the hardware for it because when i try to install the internet protocol it brings up another screen asking were i wish to install the protocol from...

Will.Spencer · 09-03-2006, 11:16 PM

That should be on your Microsoft Windows installation CD...

BruceH · 09-04-2006, 03:15 PM

Will! You are quite the guy.

I have read through this thread a couple of times and though I started with the same problem as the others mine veers away after the "netsh..." from the command line. I do get an Ok but when I go back to repair I get the same message "...unable to clear arp cache." I have checked the Routing and Remote Access service. It was disabled before I got there.

I am working behind a router and I did get an "... same/duplicate IP..." conflict today. I have since restarted both machines.

Any other ideas?

Thanks a million!

-B

BruceH · 09-04-2006, 03:21 PM

Scrap that! I checked the services on the computer I was on and not the services of the computer I was having problems with...

This happens when you have three boxes running at your desk and you are so numb from surfing, kvm switching and testing, ... surfing, kvm switching and testing,...surfing, kvm switching and testing.

Thanks for your time!

-B

Will.Spencer · 09-04-2006, 06:59 PM

Good to hear that it's all working now!

kshollywood · 10-28-2006, 01:04 AM

OK I have tried all of this,mine says "windows cannot finish repairing the problem because the following action cannot be completed."clearing the ARP cache". What do I do?

Will.Spencer · 10-28-2006, 07:36 AM

Quote:

Originally Posted by kshollywood

OK I have tried all of this,mine says "windows cannot finish repairing the problem because the following action cannot be completed."clearing the ARP cache". What do I do?

Please confirm that Routing and Remote Services is Disabled and Stopped.

If you still can't clear the ARP cache, the next step would be to delete and rediscover that Interface.

wassoum · 11-07-2006, 12:48 PM

Hi, I tried to follow the steps to clear my arp cache, It says "ok" when I enter "netsh..." and I did set the "startup" type to "disable", and I stopped the "service status", then I restarted my computer but I still have the same error: "following action cannot be completed: Clearing the ARP cache"
Please help me!!!

by the way, do I have to set the startup to automatic again or not? I tried with both, but still the same error

thank you sooo much!

Will.Spencer · 11-07-2006, 06:55 PM

You should leave Routing and Remote Services disabled unless you are using your Windows PC as a network router.

We've seen a few instances where the "usual fix" of turning off Routing and Remote Services did not fix this ARP cache bug in Microsoft Windows.

In those cases, we recommend deleting the network interface and rebooting to have the network interface automatically rediscovered.

It appears that there might by another bug in Microsoft Windows which has the same symptoms as the older bug.

wassoum · 11-08-2006, 01:14 AM

thank you will for your quick response...I tried all kind of suggestions, and I starting having new error messages, then, I went to: http://www.snapfiles.com/get/winsockxpfix.html
and I downloaded the "WinSock XP fix" and it fixed all my problems just like magic!!!
But still, I want to thank you for your help...you made me feel smart

Will.Spencer · 11-08-2006, 01:21 AM

Thanks for posting that, I'm going to check it out now!