Linksys Wireless Router :: Unknown Device Showing In DHCP For WRT400N
May 2, 2013
I have the WRT400N router with the latest firmware. Recently I have noticed a device in my DHCP that I do not recognize. It is not device I own (believe me, I have racked my brain and confirmed) as it shows as an Acer pc. I cannot ping the IP address however. I have rebooted my router several times thinking maybe it's a former connected device but saved in memory but it keeps coming back. I am thinking possibly it is someone hi-jacking my Internet, but not sure. I am using WEP security but it shows a LAN connection which is strange for a wireless device. The only hard wired pc is my HP.
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Jan 10, 2011
I upgraded to firmware version 1.0.03 I started to have this weird issue: I have four PCs connected to this wireless router via wireless G. They all run Windows 7 Home Premium. After a few hours I started to notice that the DHCP client table is empty even if all four PCs are connected to the internet. This causes a networking problem because one of the PC serves as a file server and it grants access by IP addresses. Not being able to "see" those computers, my access is denied.
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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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Jul 27, 2011
i am having an annoying issue with my wrt400n and my foscam FI8918W. in the dhcp reservation tab, the wrt400n doesn't show the foscam anywhere in the tab. it shows all laptops, cell phones, nases, etc. if i use the cisco connect software it does show it in the network map. i can probably add it manually via the gui. is this something normal or security cams not considered devices?
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Jul 10, 2012
I am trying to install Cisco Connect for my E1000 but I get the following error each attempt "An HNAP Call to the device failed for unknown reasons" I've already updated the router to 2.1 version of the Firmware.
Full Details
Error code: 82BD0305Error description: An HNAP call to the device failed for an unknown reason.Model name: unknownModel number: E1000Serial number: unknownFirmware version: unknownOperating system: Windows 7 SP 1Software version: 1.3.11069.2Connection type (WAN): unknownIP address (LAN): unknownIP address (WAN): unknownComputer IP address: 192.168.1.132
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Nov 27, 2012
I have an EA4500 and am using Cisco Connect Cloud software. Its working mostly fine except that I have one device on the network that will not show up in the device list. This is not an issue in itself and normally I would ignore (although it used to show up when I forst got the router) however..
The device is a WDTVLive media unit and required access to windows shares on a media server. Now the WDTVLive device is server an ip address by the router and is available from everywhere on my network but every couple of days it loses the capacity to search windows shares.
I know what you are thinking and I initially thought the same, this is an issue with the WDTVLive box. However one day I spent a few hours trying to resolve (Am an IT Consultant and know a little about networks) and found that I could not fix the issue. I then rebooted the router and it started working. I have since confirmed that every time it breaks I have to reboot the router.
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Sep 26, 2012
Experienced problems with guest network not showing up as an available network on a device (laptop, iPad, etc)?I double checked if guest network is enabled on a EA3500 router. What other steps can I take?
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Jun 9, 2011
When I'm in Setup -> Basic Setup -> click on DHCP Reservation, I don't see all entries I've created earlier but computers that connect still have the correct IP address on the network; I don't know if I can create additional entries if nothing appears
When I go to Status -> Local Network -> DHCP Client Table the list is blank but some computers are connected to the networkI'm using firmware 1.0.01 build 10 Feb 21, 2011, language = English, Firefox 4.0.1.Rebooting the router doesn't change anything, I can't see connected LAN equipment and DHCP Reservation is empty despite the fact I've created entries.Together with the "Access Restriction" which doesn't allow to block a computer from 10pm => 8am unless you create 2 rules + various issues with attached USB + 2.4Ghz signal that is far from optimal (never able to achieve more than 144-N-Mbps) and I ask myself if I will not contact the store where I purchased this unit and ask a refund (and buy something else from another brand...)
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Nov 30, 2011
My BEFSR81 is my primary router and has DHCP turned on. The router's DHCP range is set to accommodate 12 devices. I have three computers wired to it and their Host names (as specified in the set-up of each computer) show up in the router's DHCP device table. I also have two printers (one old Brother HL5250DN laser printer and one new HP Photosmart Premier C410a inkjet printer) connected and there are blanks where the Host name should go. I would like to be able to tell which printer is which when I am looking at the DHCP device table. How can I get a names associated with each printer's IP address in the router's DHCP device table? (The real problem is that the router seems to have both printers at the same IP address (192.168.1.100) and if I can get one of them to change I'd like to know which one it was!)
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Aug 25, 2011
I have purchased E2500 and i am having following problems:
1. DHCP client list not showing - only shows when i reboot the router. After some time, the list never shows even when i press refresh button
2. I can only reserve IP when i reboot the router - after some time i cannot do this action also
I have upgraded to latest firmware and also peformed reset as directed by support.
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Oct 29, 2011
I just purchased an E4200 router. I have four clients on my network and they are all set up for DHCP. I renewed their IPs and they all are connected. "Cisco Connect" reports that I have four clients connected. When I access the router and bring up the DHCP Client Table, there are no entries. There should be four entries. Aftern I enable the logging function, none of the logs have any data in them even after I wait for 45 minutes and use the internet and renew IPs. I am using Firmware Version: 1.0.03. I have the same results for both Chrome and Firefox. I want to be able to set Static IPs but I am hampered by the not having any clients in the DHCP client table.
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Nov 19, 2011
I keep getting some additional IP addresses logging onto my home network that have an address outside what should be allowed by the router. The server is running at 192.168.2.1 and is set to only allow clients from 192.168.2.2 - 192.168.2.10 so a total of 9 clients should be allowed on.The problem is that something keeps logging in with an address of 192.168.169.2 or 3 etc. Sometimes more than one device at a time.I have assumed that it is some automated or virtual client as I'm pretty certain my network has not been breached. I have a 9 character password with a relatively random alphanumeric combination, although I haven't tried changing the password (I live in a share house with with a bunch of devices using wireless, so I haven't yet bothered). What I don't understand is how it has connected with the xx.xx.169.xx range at all. I have a Belkin 'Share' Wireless N Modem Router and at some stage there was a 'guest' network but that has since been disabled and I still am seeing the extra address. I have attached a screen shot of the DHCP client list on the router.The following is a list of devices that may be on the network at times, I'm thinking one of these may be responsible for the problem:
Windows Vista Desktop - Only LAN device
PS3
Macbook
Epson wireless printer
Android HTC Desire Mobile Phone
Laptops running various Windows versions (XP, Vista and 7)
A few thoughts I had:
- the android phone is capable of running a wireless hotspot, may have to look into it to see if if has been operating as an access point into the Belkin router, but assumed this wouldn't bring up clients connected to the phone on the home router.
- The desktop has PS3 Media server installed to stream video to the PS3 over the network (not that I have ever managed to get it to work), however this is not ever open on the desktop.
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May 15, 2013
I am trying to troubleshoot my own router (Linksys) issues with using Lync and accessing some sharepoint sites that are internal to my company's network. I am connecting to the Internet using a Linksys router (WRT400N). When I have my work laptop using RESCUE GFE hardwired directly to the modem - and then connecting to VPN - I can connect to Lync and work normally. However, when I move connection via the router - I can no longer connect to Lync nor access some Sharepoints. I can access VPN fine but with Lync I get an error stating "Your Lync account does not allow access from outside your organization's network. Please connect to your organization's network and try again. However, I am connected via the VPN.this connection worked with a prior laptop using WinXP (I am no on Win7) and the connection thru router and using VPN worked with Communicator.I unfortunately had to reset my router - so I cannot recall if there were port settings established from the last time I had to set up the network. I didn't save the configuration; note to self - save configuration in future.
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Jul 2, 2011
I just did a reformat on my laptop, therefore I had to reconnect with my router. I put in the correct encryption key.. however as soon as i got connected, it just kept saying *Authenticating* for about 5-10 minutes then it disconnects me.. What i can do to stop this?The router itself was installed on a shared computer (I live with several roomates) and that particular computer got replaced.. does that matter to the router? the new one doesn't have the program installed.
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Aug 30, 2011
Recently upgraded to WRT400N from older 54G. Opened ports to my Linksys IP Cameras and can access via DynDNS address (using Modem addressort) from inside my network but not remotely. If I disable SPI Firewall it works from outside my network ... am I missing a step ... never had this problem with 54G and although I run software firewall on my computers I like the thought of added security of a firewall on my router.
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Nov 18, 2011
Been having random connection drops for the past few weeks where I would see the network connections to the router just drop either on a wireless connection or a wired cat 5 connection. As of tonight I cant connect to the router at all. If I disconnect and reconnect the power after 30 seconds it will come up for a short time but then I will lose it again. linksys as my router is out of warrenty. I'v searched around for similiar problems people have been having, but it seems like mostly involve just the internet connection. I still have the same firmware for the routers as the day I purchased it and the router sits on my desk in a ventilated area not overheating. I can do to further diagnose the problem, I have even tried resetting to factory defaults. I try to diagnose the problem or see if my router is just dead.
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Jul 10, 2011
I was able to connect to the n portion of the router with the xboxs fine until last friday. now i can see the n network ssid fine but the xbox won't connect to it.
my pc connects just fine, i've powered cycle the router, tried renaming the router, opened all the required ports, reflashed the router to the current firmware.
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Jul 2, 2011
Check to see if there is a firmware upgrade and there is. Well I updated it with the newest and only one out there. I did the upgrade, said sucessful and now it will just random reboot or something........ every few minutes the power light starts flashing....... then all the light go out, then power flashes again and it comes back up. I have tried many times to reflash it with that new firmware but no avail. I wish I had the old firmware back because it was working fine till I did this upgrade.
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Jul 16, 2012
My wrt400n was working great but since last few days internet keeps dropping. My modem is all good and up and running. Its just router keeps dropping internet. SO i have reset the router and than it works.
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Apr 1, 2012
I cannot get internet Wake on LAN to work via my wrt400n . (It works fine on my LAN - so I know that the pc is configured properly. Further, I know that port forwarding is set up correctly, as other applications are using forwarded ports and are working correctly). The issue seems to be that the magic packets are being blocked by the router or they are received but the router doesn't know where to route them. I monitor the network and the never see the magic packet on my subnet. how do I set up a static ARP route on the wrt400n? I suspect that I may need to create a static ARP to resolve the issue.
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Aug 16, 2012
when I do a show module in my cat 6509, the standby sup is saying unknown, it has the same IOS as the primary card.
what does this mean? are there any tests I can run on the card?
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Mar 9, 2013
I have couple of SFP and most of them are working fine except this:-
Nexus7000# show interface ethernet 6/31 transceiver details
[code]...
a) What is the reason this is not getting recognized?
b) Is theSFP SFBR-5766PZ-CS1 plug and play in the 7000 Nexus?
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Aug 13, 2009
I would like to configure it as an access point on my LAN, similar to the way my WAP55AG works.My research on the Internet and on these forums indicate that I have to disable DHCP on the router as well as use the LAN ports to connect it to my network.I am able to turn off DHCP, but assigning it a static IP address is challenging.I can set the IP address, but I am unable to set the subnet mask to 255.255.254.0 as I am only getting a set of SM in a drop down list whick are all 255.255.255.x
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Mar 13, 2011
I have a WRT400N and approximately every 30-45 minutes the router will drop all connections (wired and wireless), all the lights will go out and then power light (far right light) will flash for a minute or so. I have tried connecting directly to my modem and I have no problems at all.
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Jul 8, 2012
I have a WRT400N that loses connections for my PC and other devices in my house (IPHONE, IPAD etc.).Sometimes it fixes itself other times I need to to a hard reset to boot the router and then evryone can signin again
The Firmware Version: 1.0.01 B19
The operating system on my PC is WIndows 7
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Aug 28, 2012
I have been experiencing intermittent issues with download speeds of 1-3 MB and ironically upload speeds of almost 10MB. When everything is working fine I get download speeds of about 35MB and upload speeds of 5MB which is normal. This issue comes and goes. I had Comcast come out several times and we finally pinpointed it back to the WRT400N router. The Comcast modem is a Cisco DPC3008 model. I know there are known issues with the Cisco WRT400N but have had a hard time finding the information. Any known issues for this model and if so what are the fixes. BTW, the firmware is up to date.
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Mar 17, 2013
I'm having a little trouble connecting a new computer to my wireless network. I have a WRT400N router and I'm connecting an older computer to it. The computer runs off Windows XP and the router itself is a WUS854G. We can get the adapter to say that it is connected to the network, but the router will not assign it a new IP address or even acknowledge that it is connected on the MAC client list. We manually forced a new IP, which allowed the computer to connect (though, again, the router did not show that it had been connected to.) but despite the connection being "Excellent" we could not access the internet. Furthermore when we tried to refresh the connection the IP address reverted to the original setting.
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Oct 14, 2009
Just bought a WRT400N and set it up using 5ghz and 2.4ghz bands, and using WPA TKIP for both. Problem is that both my laptop and my iphone occassionally lose connectivity and my iPhone says that my WPA key isn't valid.
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Jan 16, 2010
Having a problem with port forwarding on their WRT400N? I'm forwarding one service (https) and this stops working if it's not accessed after a 10 days or so. The only way to get it to work again is to reboot the router. I’m running the “latest" firmware, which is an oxymoron considering it's been over 12 MONTHS since Linksys updated the code... Which is appalling considering this appears to be their flagship wireless N router.
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Sep 6, 2011
I've had been successfully using a WRT400N to extend my wireless network as follows:
The WRT400N connected to my network via an Ethernet port in my kitchen. The cable ran down to a corner of my basement connecting to Verizon router that brings in our Internet, TV etc.
The Verizon router's poor location was a problem, and placing the WRT400N in the kitchen worked perfectly, providing excellent network access and Internet to wireless devices throughout my home. It worked fine for over a year.
Recently, we had a power outage which reset the WRT400N to factory settings. and I am having trouble getting it to work again. I set it up in the first place, but am now having difficulties. Clearly, I am no guru!
I tried to get it going again by: 1) plugging the WRT400N into a PC and giving it a new IP address that would not conflict with the Verizon router (both default to 192.168.1.1) 2) turning off DHCP, 3) renaming the router, 4) changing the router password, 5) setting up a WPA2 security key.
I then plugged the WRT400N back into the kitchen Ethernet port, but something is wrong. Wireless devices cannot find the WRT400N.
The good news is that I can "see" the WRT400N through any PC on the network via a browser and access setup, but the bad news is that devices cannot see or connect to the wireless signal.
When I go to "Status" it shows the IP address, subnet address and default gateway all at 0.0.0.0. On the SETUP page, it has the correct router address (192.168.1.9), and a subnet mask of 255.255.255.0. Not sure if it is supposed to be this way...
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Jul 28, 2011
I've had the WRT400N for about a year and a half now and just last night it stopped sending out data when connected to my cable modem. I've tried connecting the modem directly to my Mac and it works just fine (that's how I'm sending this message now). But when the modem is connected to the router, I get no data. It connects to both the 5 Ghz and 2.4 Ghz networks, but it refuses to send data through the pipe. I've tried power cycling both the modem and the router to no avail.
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Oct 16, 2010
I am trying to set up an access policy on my WRT400N. Whenever an access policy is enabled, all internet acess is completely blocked. This occurs irregardless of what the access policy is supposed to block. Even a blank access policy that allows access to everything and doesn't have any computers registered still blocks everything. How do I get it to stop completely blocking internet access?
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Mar 14, 2012
We had a power outage the other day, and now the wireless router cannot connect to the internet. Network Magic shows there is no connection from the device to the internet. I tried repairing it through Network Magic but it wasn't able to fix it.
My PC is directly connected to the wireless device by LAN cable. If I connect the PC directly to my DSL router I can connect to the internet, but not if I connect to the wireless router and from there to my DSL router. I tried resetting the wireless router to factory defaults and then going to [URL] and resetting up the router security settings. But Network Magic still shows the bad internet connection.
I then tried resetting the router to factory defaults again and installing it from scratch using the setup CD but that failed as well. I'm not at home right now so can't remember exactly at which point it was but I think it was either when the setup wizard tried to detect the device or install the device.This is the second time I've had to reset up my router due to power outage. Last time I was able to get it working by doing the first steps above.
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