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Unidentified Computer in our networks shared


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laxexquis

 
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Hello,

We have a couple of macs and windows in our house.

Just tonight I have notice on all our macs that a shared computer: "new-host-3" comes up as a PC.

THinking it was one of our windows computer I turned them all off and unplugged them from the network to make sure, but it did not go a way.

Just yesterday we purchased a new Macbook pro and a wireless printer. I set the wireless printer up so it's accessible on the network, would this have any thing to do with it? The only thing this is happening while the printer is unplugged. It also cannot be the new macbook because it is separately appearing in the list.

I tried unplugging my modem, then plugging it back in. The unidentified computer went away and just all our computers were listed, but then suddenly it showed up again?

What could this be? I am really worried it is a hacker, is that possible?

Thanks
John
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cwa107

 
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Sounds like you have an uninvited guest on your wireless network. Are you using any form of security?

Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!
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laxexquis

 
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Quote:
Originally Posted by cwa107 View Post
Sounds like you have an uninvited guest on your wireless network. Are you using any form of security?
Yes, WEP, no way any average joe could get on.

That's why I am worried, could some genius hacker get on through the internet? Now that I think about it, I turned off a firewall in one of my windows yesterday, could they get through through there?

AHHH! I am so worried!! How much info could they get?


Thanks
John
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RobW

 
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This used to happen to me as well, and I actually posted on here about it because I feared the same thing you do. Someone told me it was my printer, so I haven't really worried too much about it. I haven't seen it in a long time either.
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laxexquis

 
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Quote:
Originally Posted by RobW View Post
This used to happen to me as well, and I actually posted on here about it because I feared the same thing you do. Someone told me it was my printer, so I haven't really worried too much about it. I haven't seen it in a long time either.
Alright, thanks for the info.

The weird thing is my printer is unplugged and it is still happening, would that be the same for you?

Any one else have any other info?

Thanks,
John
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My XBox shows up on my network as a new-host. Do you have an XBox in your house?

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Actually WEP is not the most secure of passwords and is fairly easy to hack. Try using a WPA and changing the password. I agree with cwa. Sounds like someone from another household is using your network.

Chris K.
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wmprice1240

 
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Actually, it sounds to me like it's your printer and that's the default name your DHCP enabled router is giving the printer since it probably doesn't have a host name.

For non MulticastDNS or Bonjour hosts, entries in the Finder Sidebar tend to stay around for longer periods of time.

You could always verify this by checking your router to see what IP it has given your printer via your DHCP clients table and then map that back against the device. Again, this would be my guess given the generic host name but it never hurts to check.
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Since it goes away when you turn off the modem and it disappears, Let me ask you this. Is this DSL or Cable? Is the modem plugged into a Wireless router? If so I am almost 100% sure it's someone from the outside as unplugging a DSL modem from a router would not affect the printer as the router should be handing out the DHCP address's.

WEP can be hacked by someone with any knowledge and WiFi Sniffer in sometimes 5 minutes or less. Use WPA or WPA2.
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cwa107

 
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Quote:
Originally Posted by laxexquis View Post
Yes, WEP, no way any average joe could get on.
You are mistaken. WEP is dead, has been for the better part of 5 years now. Any idiot with 60 seconds on their hands and a bit of Google searching can break WEP.

Switch your encryption to WPA and see if the interloper goes away.

Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!
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laxexquis

 
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Hello everyone.

Thanks for all the replies.

First of all, I do have an Xbox in my house, but it was not turned on at the time, though it is connected to the network.

Second, it is DSL, by Verizon. The DSL modem is wireless and them I have an ethernet wire going out to a router that splits to my xbox and the wired computers. I see your idea that if I unplug the modem the printer should still be there, the only thing is that the modem is also the wireless router all in one piece.

Frankly, I have no clue how to change it to WPA, as I had it all set up by verizon. I'm not very good at working with networks.

Let me just run one more thing by you.

I am not positive, but last night while messing around, it seemed that the "new-host-3" appear only when we had the new Macbook pro connected to the network. FIrst eh macbook pro would appear then the new-host would appear. This macbook was the computer used to put the printer on the network, but keep in mind the printer is not plugged in.

Let me also ask, is it possible for some oveer the internet to get to our network? It is highly unlikely that this is a surrounding household as I live in a rural area with houses fair apart and the only one I would think is close enough already has their own wifi that I would use before I got my own.

Thanks again for all your thoughts.

John
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RobW

 
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I have a PS3 on my network as well, so that may be what is showing up.
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cwa107

 
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Quote:
Originally Posted by laxexquis View Post
Frankly, I have no clue how to change it to WPA, as I had it all set up by verizon. I'm not very good at working with networks.
You definitely want to change that. It should be as simple as opening a browser and typing 192.168.1.1 into the address bar. Verizon's tech support should be able to walk you through it. It should NOT have been set to WEP.

Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!
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harryb2448

 
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WPA as suggested with a strong password of say a minimum of four numeric and four letters in random order makes it almost impossible to crack.
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WPA is also getting old...the new WPA2 is going to standardized on most broadband companies soon. As you guys mentioned, WEP can take less than 1 minute to brake into. WPA/2 is A LOT harder and time consuming. We have WPA2-PSK with our modem. I thought that someone had gotten in one time, but I had completely forgotten about my iphones wireless...stupid me.

It's probably easier to call your service provider to change the password so the chance of messing it up won't be there.
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