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Geek Culture / IP address error message

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Green Gandalf
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Posted: 7th Dec 2010 17:47 Edited at: 7th Dec 2010 17:48
I've just woken up my PC and got the following messgage:



Any ideas what "the Administrator" (i.e. me) should do about this? Also, where is this Windows System event log?

At the moment I'm doing nothing and everything seems OK.

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budokaiman
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Posted: 7th Dec 2010 20:53
Have you checked to make sure that the LAN and wireless network connection (if you're using a laptop) have IP on auto detect?


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Master Man Of Justice
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Posted: 7th Dec 2010 21:16
A few things, might be obvious but you didnt state you had done them.

First, Check the router settings to see if any obvious settings are wrong.

second,

Try this in the cmd prompt:
ipconfig /release
ipconfig /renew


If thats not it, its a local windows setting, which i cant point you anywhere because the error message is very vague.

Green Gandalf
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Posted: 7th Dec 2010 21:53
Quote: "Have you checked to make sure that the LAN and wireless network connection (if you're using a laptop) have IP on auto detect?"


No. I have no idea how to do that - and that's a typical Windows "nerd" question where I have no idea what the consequences are of choosing/not choosing that option (I'm being rude about Windows before you ask ).

Quote: "A few things, might be obvious but you didnt state you had done them."


I haven't knowingly done anything.

Quote: "First, Check the router settings to see if any obvious settings are wrong."


I have no idea how to do that - or what the settings might mean.

Quote: "second,

Try this in the cmd prompt:
ipconfig /release
ipconfig /renew"


And what are the consequences of doing that?

Quote: "If thats not it, its a local windows setting, which i cant point you anywhere because the error message is very vague."


That's roughly where I started. How/who/what/when determines these IP addresses anyway?

Interestingly, my wife and I have been playing games on our respective laptops for the last hour or so and suddenly I could hear faint music. I asked my wife if she could hear it and she couldn't. Then I realised it was coming from my laptop and it had nothing to do with the game - or anything else that I knowingly had open. I then turned up the volume and could clearly hear choral music. It was rather pleasant - but where on earth was it coming from? Could this be related to the other problem? Have we in some obscure way tapped into our neighbour's network? Food for thought - I'll check.

Afterthought: Regarding the auto-detect issue, I think the answer must be yes because whenever I go somewhere with a wireless network the laptop detects it straightaway. But what has that to do with either issue?
Indicium
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Posted: 7th Dec 2010 21:56
Quote: "Try this in the cmd prompt:
ipconfig /release
ipconfig /renew""


I think, As the commands suggest, they 'release' the ip back into the routers pool of ip's, then assign it a new ip.

thenerd
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Posted: 7th Dec 2010 22:00 Edited at: 7th Dec 2010 22:03
Quote: "I have no idea how to do that - or what the settings might mean."

Go into cmd.exe, and type ipconfig. This will give you information about how your LAN network is set up. It should look something like this:



Look at the "Default Gateway" IP. This is the IP address for your router. Enter that number into your internet browser, and then enter your router username and password. It'll display a menu filled with options for your network.

Like Master Man of Justice said, ipconfig /release and ipconfig /new should do the trick.

Quote: "How/who/what/when determines these IP addresses anyway?"
Your router determines the local LAN IP address, only usable within the local network. These addresses begin with 192.168.x.x. The global IP address is determined and changed regularly by your ISP, but that's not relevant to this problem.


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BatVink
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Posted: 7th Dec 2010 23:30
You have a few solutions, here's the most probable cause:

1. Device One started, obtains IP address (Address 1).
2. Device put on "Sleep"
3. Device Two started some time later, after IP address 1 is released back into the pool on the router due to inactivity.
4. Device One is woken up, thinking it owns IP Address 1. Router reports conflict, message displayed in Windows.

bitJericho
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Posted: 8th Dec 2010 03:29 Edited at: 8th Dec 2010 03:34
If you can still access the internet, it was probably just a fluke.

It occurred because your laptop got a conflicting IP address from the router; but who knows, windows probably just screwed up. If it continues to happen, you will need to find and investigate the cause using your router's built-in software (read the manual). Look in particular for a computer logging onto your router that you don't expect to be there. If you're not sure, I'd be happy to investigate using remote desktop software, but I would charge and it's probably unnecessary.

If you're concerned, the easiest thing to do is just to make sure your wifi is secured, requires a password (change the password if you like), and uses WPA2 security. Read the manual for your router for more information on that.

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Fatal Berserker
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Posted: 8th Dec 2010 03:34
its usually people on your same connection (not outside your router), or lan.

Smoke me a kipper, ill be back for breakfast.

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bitJericho
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Posted: 8th Dec 2010 03:35
But he clearly has internet, so probably not. Both devices would have connectivity issues if there was actually a problem at the moment.

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Green Gandalf
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Posted: 8th Dec 2010 12:03 Edited at: 8th Dec 2010 12:22
Quote: "If you can still access the internet, it was probably just a fluke."


Yes, seems like it. The message hasn't appeared since and all three machines on our network connect fine.

Quote: "If you're concerned, the easiest thing to do is just to make sure your wifi is secured, requires a password (change the password if you like), and uses WPA2 security."


Yes, ours is secured - but I don't know about the WPA2 thing.

Still no suggestions as to what what might have caused the music to play on my laptop? Strange that should occur on the same day as the other problem.

Edit Just realised that my earlier reply to BatVink isn't there. Probably means that I hit Back instead of Post Message.

Explains why you are all going about secured networks - my message explaining the setup didn't appear. No wonder there weren't any more comments about the music issue either.

For what it's worth, BatVink's theory sounds plausible, and we have access to three networks: our own secure network and two other unsecured networks that I don't recognize (BTFon and BTOpenzone). I don't know what they are. Any ideas?
bitJericho
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Posted: 8th Dec 2010 17:41
you wouldn't get music coming in from a rogue network. It doesn't really work that way. It was probably something in the background of your laptop. An ad or something.

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Green Gandalf
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Posted: 8th Dec 2010 19:45
That's what I thought - but I'm fairly sure the only other thing open was one of the TGC web pages. Sounds plausible though. If it happens again I'll try to investigate more carefully. Your theory might explain why the music cut in and out if I changed my browsing page/scroll point (can't recall now exactly what I did).

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