Several Unknown Devices Appearing On Network
Jul 31, 2011
After getting unusual IP conflicts on my laptop, I did a scan of my home network with a program called Zamzom and got the following results:On my Macbook I used a similar program and got more than 40 devices showing up: Neither program says which devices are active. The Mac results bring up BlackBerrys among other things. I upgraded my security from WEP to WPA2, but nothing changed. I use NOD32 and recently installed AdAware, which picked up a few things, but again, results are the same.
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Jan 31, 2013
We purchased an EA6500 to take the place of the router function of a Verizon Westell 7500. We bridged the Westell, installed and set up the EA6500 and everything seems fine.
What is strange is that some devices on the network (our server, user PC, a NAS that isn't part of the domain) while accessible if you navigate to them via \ do not appear in the Network window.
This of course is causing issues for some users who don't or won't map network drives.
At first I thought this may be an issue related to us having some of our network devices with static IP addresses so we switched them over to dynamic - no change in the network window.
we will have to return this router and get a different brand/model if it won't work in this fashion.
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Jun 27, 2011
The Cisco 2821 ISR's in our environment are listed under device management (Inventory>Device Administration>Add/Import/Manage Devices), but do not appear in the menus for inventory collection, archive synch, or net config. All are running IOS. No other routers or switches in the environment are displaying this symptom in LMS.
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Apr 15, 2012
After successfully install a device update for Common Services, all devices are reported as unknown.Number of Packages Selected for Install : 2
-For Product(s) : Common Services
-Install Invoked by user : ameconi
-The Package(s) Selected for Install :
When I try to install other updates these fail because MDF is version 1.59.
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Sep 3, 2011
Our wireless network with a security password is not being recognised in the list of available wireless connections. I can see it in the list of networks in the Control Panel but it is not being listed in the available network list . We can connect directly to the router but there is no security password and I would eithera. like to assign a password to the connection (NetGear) orb. be able to connect to our original network listed in the control panel.
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Nov 3, 2012
problems with laptop, one of which is i am unable to get wireless connection again, no network connections are appearing in control panel?
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Jan 19, 2011
Since i got sky broadband it's always been running super slow, the amount of times i have called them is ridiculous. So i have just been looking around on the sky address to see if i can fix it and in my Attached devices i have, the pc, an ipod touch and an unknown device. I'm wondering if this has anything to do with the slow speeds and maybe it's somehow 'stealing' my broadband. I've read a previous post of the same type but that wasnt for sky. i ran the ipconfig/all into CMD
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Nov 15, 2012
I have various unknown Mac addresses on my network,detecting if they are normal/non harmful OR if I've been hacked! I've uploaded a picture of the addresses, the second to the last address is my router's.
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Mar 22, 2011
I have various unknown Mac addresses on my network, I need to detect if they are normal/non harmful OR if I've been hacked! I've uploaded a picture of the addresses, the second to the last address is my router's.
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Apr 16, 2012
my wifes computer had to have a new hard drive installed an since it was fixed it will not network with my laptop in a private mode only public and my laptop now has a question mark then step down her old computer as the network path we are both windows 7 hers is hp and my laptop is toshiba satellite I can not get rid of the 2 networks from her computer or the question mark on mine
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Apr 1, 2011
I use a Ethernet Powerline adapter.Right now, there are 5 other computers on my wired network, and i don't know what they are. What are they doing there, and how do i get them out?
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Dec 13, 2011
I found two unknown computers on my network (using Explorer). I have a wireless setup at home (private) with a desktop (wired), two laptops and a phone (wireless).The encryption is WPA2/TKP with a hard to guess password. The two unknown computers were connected this morning and a few minutes after I tried to access them and do some checks,they disappeared could they have been watching me? I didn't check the router page until then and of course, they weren't there.Also, yesterday I was at a coffee place, so could it be that this is nothing and those two computers are from people at the cafe? Is there anything I can do to make sure nobody can access my network, unless it's the computers I want. I haven't manually set up a home network yet. [code]
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Feb 13, 2011
How I can stop the unknown workgroup user on my network?
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Apr 24, 2013
From Chrome when I try to download from a file sharing site I get "Unknown network error". And from firefox I get "source file could not be read". From internet explorer it just stops. The downloads don't even get halfway thew before failing. I didn't have this problem with this computer previously before I moved. I'm using the same access point and same internet connection. One thing I notice is that windows network center shows at times that I'm not connected to the internet but I'm still able to browse and use the internet. The disconnected icon only lasts for a few seconds in network center.So I think its some kind of settings or access point issue. Windows 7 64bit Ultimate service pack 1 My ISP is Suddenlink(cable) located in Louisiana. I'm renting their wireless router/cable modem. The Access point I'm using for the PC is trendnet TEW-430APB.My internet security is Bitdefender total security 2013?
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Apr 9, 2012
I recently purchased a Linksys EA4500 Dual-Band N900 Router with Gigabit and USB. Everything set up great with no problems and after a day or 2 I managed to get all home devices connected (2 laptops, 2 printers, an iphone, 1 tv, 1 blu-ray, an old desktop, and a tablet). Everything was connected right and working and I installed the Linksys app on my iPhone which let me see what devices were connected and all that. Well, last night, an unknown device showed up as a connected device. It's labeled as: android_(insert string of characters) and has a MAC address. I've tried and tried to identify what this device is and I can't. Everything else on our network is still showing up independently of that device. I'm worried that someone using our connection and possibly putting our device security at risk. What can I do to A) try to identify what the device is and B) if it is an intruder, block it's access.
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Nov 3, 2011
It may be a coincidence but my Broadcom Network Adapter 802.11g stopped working after trying to fix 'unknown device' in Device Manager (It was working perfectly before this).OS: Windows 7 Starter on 'BenQ Joybook Lite U105'.I tried the Windows Network trouble shooter and it didn't work (saying there may be a problem with the driver. I uninstalled the driver and re-installed it (including a possibly newer one) and it didn't work. Within 'Network Connections" the Broadcom wireless adapter is shown as 'disabled' I R-clicked to enable it, a window popped up saying it was enabled but it still showed as being disabled. My feeling is that something is preventing it from being enabled, logically, I would guess. Also went to 'Component Services' and ether started or restarted everything with the word network on it still no luck..My Google search on an other pc , now on day 3, couldn't find anything. (BTW the 'unknown device' which according to the icon, seems to be the joybook itself, is still not fixed and still listed as 'unknown device').
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Jan 16, 2013
When downloading files using chrome I keep getting "unknown network error" before the download is complete. Why is this happening and what can I do about it? I am using vista on an acer aspire 5535 laptop. I tried using internet explorer a few times instead but it has also happened there.
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Nov 13, 2011
The network I am currently using only allows one device to be connected at any one time, regardless of whether you use a switch or not. Could I connect a router to the wall socket and then use multiple devices with the router? In theory the router should only appear as one device in every aspect even with several devices using it, correct?
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Oct 9, 2011
Well, I recently purchased a new ipod Touch for my birthday and planned on using Wi-Fi internet for my touch when I'm around the house. My sister had a router that had not before been in much use, the WRT54G Linksys router; so to save money we decided to use that. Well, we plugged in the router on October 7th, (friday) and everything was working -- we had Wifi connection; the WLAN light on the Linksys router was lit up. Now, last night, October 8th, right before going to bed I shut down my computer and I unplugged my computer cable. I did not unplugg the router. This morning, as soon as I turned back on my computer, as soon as it was done booting up I noticed the WLAN button on the router was not lit up. I immediately pulled out my ipod and it said that I was not connected to Wifi. All day I have been unplugging the router/modem, replugging them in, only to find that the WLAN button is still not lighting. The other buttons on the router - 'power', 'internet', and '1' (out of 1, 2, 3, 4) are lit. I have only tried rebooting the modem/router/computer once, which was about ten minutes ago and still nothing worked. Is there any way to get my Wifi back? The router is pretty much brand new, having never really been in use to begin with.
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Sep 28, 2011
LMS 4.1 is not showing any valid syslog messages, only invalid messages. Is there anything different in 4.1 that needs to be set?
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Apr 23, 2012
Truelife always takes over my homepage instead of google opening up
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Oct 3, 2012
we have the WLC and 2 x Aironet AP's that is powers over PoE. The other day is was reloaded and since then the AP points are Blinking Red, according the the Aironet manaul this means some sort of boot error? They are also not appearing on the WLC from the GUI or CLI running a show ap summary. Interesting though I can see them via CDP, however they are not picking up IP's as they are listed as 0.0.0.0. After checking with colleagues I was told these were set statically.
Is it possible that the points not having IP addresses is a sign of a corrupt boot environent? I would have though they would not have appeared in CDP if they were corrupt?
I did not set this up in the first place so a little puzzled at the moment? Nothing has changed on the config bar using a different NTP server on the network?
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May 9, 2012
I have a D-Link DSL-2520u ADSL2+ modem. When I access the page 192.168.1.1, it prompts for a username and password. Upon successful authentication, I see the modem configuration page.
If I am on a different network, I can also access the modems configuration via its public IP address.How can I restrict access to the configuration page via the public IP address and only allow access via the internal IP address?
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Dec 27, 2011
I was browsing through a blog website (tumblr), and I noticed that several images looked VERY distorted and bizarre.[URL] This started continuing as a scrolled through my dashboard, and even .gifs were affected, also becoming very distorted like flashing white and having broken parts to it. At first I thought it was a problem with just the website, but after asking other people who said they were fine and browsing through other sites, I noticed that the problem wasn't just that. It even looks like it's affecting your website's banner. [URL] The browsers I tried this with are Google Chrome, Firefox, and Internet Explorer, all of them having the same problem. Also on several websites like tumblr, youtube, yahoo, etc. I even get times where it looks like I see bits or large chunks of html on the page, as if those are broken too. Now, the strange part is all of my images that I have saved to my hard drive and all of my gifs, etc. are working completely fine, and I can view them with no problem. Images on the internet, however, are very distorted. This is also happening to several images, not every single one of them. Then I thought that my laptop could be infected with a virus, but I performed multiple virus scans (Windows Defender which I know isn't that good, a Norton antivirus scan, and an Avast scan.) All scans said my computer was completely clean and free of threats. I had also gone through my computer's display settings and all of that just to see, even though I had never touched those. Everything looked to be fine from what I saw. And now starting yesterday, the problem has mysteriously spread to my iPod touch (2nd gen but it still works fine), with images that I view online also having the same distortion problems.
I was only able to rule things out to the internet connection now. Now, what's odd is I was at first trying this on my iPod, but I went and connected to the wireless network of a neighbor, and images on the iPod actually looked restored. Then after trying it on my laptop and going on my browsers, the images were strangely distorted again... I then went and cleared the cache and cookies (not including the history), and that actually managed to do SOMETHING. The images that were distorted on my browser were restored, but then OTHER images and .gifs became distorted. (Also as a side question, is it the end of the world for me if I erase my cache on cookies while on a website? I heard from people that you shouldn't delete your cache if you're on a website, but I didn't know about that at first... Of course, I don't think it made things worse, since the problem was still present before I deleted it.) Clearing the cache on my ipod's internet also seemed to have the same effect as with my laptop and its browsers... Also clearing the cache several times only went only caused the same thing, with some of the restored images from before going back to being distorted.
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Dec 26, 2011
I have a new E4200 (running FW 1.0.3) and connected a Seagate GoFlex 1TB drive to it. The drive is recognized fine by macs and PCs. However, I find random folders appearing in my mac finder as "alias" and hence innaccessiable. There are a bunch of them scattered in random areas. On Windows those items appar as an unrecongnized incon, a 4KB size and Type file with the "archive" option checked under File "Properties". On a mac they appear as kind "alias" with a 4KB size.I also didn't notice any particular oddities with the directory name (I.e no special chars). I tried renaming them and that didn't fix it.
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Oct 6, 2010
I'm having an issue with a Cisco 2811 ISR Router. Sh ver command output lists the correct ios that the router used for booting and it says that the ios is stored in flash but when i give "sh flash" command it doesn't display the ios file. Maybe the flash is corrupted or damaged in some way? In the attached file is the output from the "sh ver" and "sh flash" commands.
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Jul 5, 2012
We run a network of several 2960G and 3650G switches in a network with a number of VLANs. One one particular VLAN (let's call it VLAN 10) it appears that non-broadcast traffic (i.e. normal unicast traffic) is being copied to every port in VLAN 10 only on one switch . The traffic is not crossing trunk ports and does not appear on other switches that have ports in VLAN 10. We first spotted this by noticing that a UPS port had an unusual amount of activity on our port througput graphs:
This traffic at 4 am is not expected and this profile is repeated across all ports in VLAN 10 on this switch (a WS-C2960S-48TD-L stack running IOS 15.0(1)SE3)\iffed one port using local SPAN (the UPS port) and discovered that this traffic was not broadcast, which was running at a normal low rate at all times. The traffic appeared to be unicast traffic from other ports of the sort you might see on a hub. It was from various hosts that live on VLAN 10, most (not all) of the conversations had one end station homed on the 'problem' switch. There are about 800 non-broadcast packets per hour and this is a busy VLAN so it does not account for all the traffic on the VLAN.
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Jun 11, 2011
I wasn't sure where to post this as I'm not using cisco to do the network withwhat happens to a network when it goes over 255 devices that need IP address, how does the IP addressing then work?
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Aug 26, 2011
My home network currently consists of the following components...
BT Homehub 3 router - B/G/N
PC running Windows 7 and using a Edimax wireless pci adaptor - B/G/N
XBox 360 with live connection - N
Laptop with inbuilt wifi and no slots for another card except via USB - G
Various phones - G
Everything in the house is running at ~ 26-54 Mb/s at the moment and the two N devices have a very weak signal due to their distance from the router. Unfortunately, moving the router to somewhere that will benefit one device will have a detrimental effect on the other due to their locations.The router has the option to switch on 40mhz (mbit???) which, I gather, is also known as channel bonding and this should boost the range and speed of the N service but I also gather that doing this will stop all the G devices from connecting at all.I still have the Homehub 2 router that I was using before so I was wondering if there is any way I could make use of this (or anything else) to allow me to use all devices in the house at their fastest speeds.
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May 19, 2011
How to feel about having network devices resolve names? Do you typically do it? No? Why or why not?I feel like I haven't seen it set up a lot, but it could certainly be good for specifying logging hosts and things like that.
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Jul 25, 2012
Can an IP conflict cause network issues for computers other than the devices that have the same IP? I have resolved an issue where someone was testing a device on our network and assigned a static IP that was already in use by one of our printers. Specifically, I am curious if the IP conflict could have caused issues with mapped network drives for other computers. I just seemed to have network gremlins for the 2 days of the IP conflict.
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Mar 18, 2012
I've been having a bit of a problem lately trying to play Battlefield 3 on my PS3 when other computers are running on my network.
I'm looking for a program or method to set bandwidth limits on some devices to try to guarantee the PS3 enough bandwidth to play without lagging.
With the research I have done what I can find is that there is something called Quality of Service (QoS), and traffic shaping -- which are good and fine but I don't believe my Westell router supports them and I don't want to have to do anything crazy with my router.
Also I am currently dual booting Ubuntu Linux alongside Windows XP, and I don't have XP set up because I want to install Windows 7 on that partition once I can read DVDs (in the hardware forum), therefor I would really like to find a Linux program that I can use to shape my network traffic.
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Sep 15, 2012
I have a mix of devices that all access the internet via a Deutches Telkom Speedport W 723v my windows devices, HTC phone and even the iPad 2 never have a problem, but my Macbook Pro (Unibody Late 2008 model) and my iMac (Probably 2007 / 2008) keep having a problem with the network dropping out. To fix it I have to switch off Airport and switch it back on again and it re-connects straight away.The Mac OSX software albeit now rather dated on both devices (The Macbook is 10.5.8) is kept up to date using Software Update.The problem amy also now be affecting my APPLE TV2 it never had a problem before but now I cannot connect to iTunes on my Macbook using Home Sharing it just does not want to connect!!!I did try before going into the Speedport and changing channels from AUTO to channel 1 but that did not resolve it. I am going to do it again and try a different channel but logging onto the Speedport is an absolute pain, I can only login using my Macbook Pro when it is booted into Windows XP and on Ethernet as we had all sorts of problems setting it up and could only do it using IE not SAFARI and now the Speedport login only recognises 1 x PC for logging in, if you try a different device it throws a wobbly and locks up!
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