Linksys Wireless Router :: WRT400N Connection / Unable To Connect To Internet
Apr 5, 2011
I have had a problem with my WRT400N wireless Linksys router. Whenever my router restarts or if the DHCP lease expires, I'm unable to connect to internet. During this time I can access the router, but not the internet. Oddly something that seems to "fix" this is if I use my nintendo wii to access my wireless internet at that time, all computers on my network are able to access the internet. However this is annoying to do since this happens once a day from DHCP lease expiring. Using any other computer to attempt to access the internet at this time would be unable to get a connection until I do the "fix" with the Wii. WRT400N
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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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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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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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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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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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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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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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Feb 28, 2011
I have the WRT400N router and using windows 7 (on this computer). It works perfectly with any computer I use in the house (there's 3). As soon as I open a laptop, its connected. My iPhone (we have 2) and an iTouch, are a different story. They connect, stay connected sometimes for 5 minutes, sometimes 5 hours, then will drop the connection out of nowhere. It doesn't matter how close or far I am from the router. Sometimes I'll get a message that I have an incorrect password (which it's not, which is why it DOES work). Sometimes I don't get a message at all (on the phones I'll just notice its on E/3G). Now, looking through the database I noticed there is a program for the valet routers that lets you add the phones, yet this doesn't apply to mine.
The tech in live chat told me it was the phones. I know its not as I had a wireless modem before this, and I never once lost a signal or had it ask me for an incorrect password.
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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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Jan 20, 2013
WRT400N worked great for 18 months.
Last week the Verizon-supplied DSL modem went bad (wasn't receiving data) and was replaced.
Now I can get Internet direct out of modem, and when I connect it to router the router's Internet light is on, but it seems to stop there. Devices connected to router via Ethernet or wifi don't get Internet.
I'm able to get to the router's admin console via Ethernet and wifi, but no Internet.
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Jun 5, 2012
I have used the WRT54GC (v2.0) router for a few years now, everything worked as smooth as butter, but a few days ago it just stopped detecting the internet connection. Everything works fine with the modem. After resetting the router, I tried to reinstall everything using the setup wizard but at the eleventh step, a pop-up message appears saying that it is "unable to detect the Internet connection" and, like I said previously, the modem works just fine. The username and password for the connection are correct (connection type: PPPoE).
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Jul 17, 2012
I've recently picked up a E4200 to build a dual band network which is targeting to link up (TV, media server, ps3, laptops) then (maintaining phones etc which only has b/g). While currently only laptops.Before doing any of these I have another cisco modem router DPC3825 which worked fine with giving wireless access.I first attemped to leave the modem router has is and connected the E4200 (ethernet 1 to internet), and changed ip to x.x.0.1 and x.x.0.2 while disabling wireless on the dpc3825 and the DCHP on the e4200 and have default gateway to x.x.0.1. My laptops can connect to wireless on E4200 but it couldn't get internet access.
Then I tried turning the modem to bridge mode & resetted E4200 (factory setting x.x.1.1, auto DHCP), and then connected my devices to both wireless bands. At this point I see router status obtained ip from ISP and Internet reached full speed per ISP's mark but the connection only held up for about 1 minutes. I noticed all the devices still maintained connection to router wirelessly but the router loses internet connection (lost the ip and couldn't get it back).
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Jan 22, 2012
Purchased E2500 1 week ago. I do not have a problem communicating with the router itself (either hard wired or wireless) but I have been unable to establish a usable internet connection from the router.I live in building that is wired by Restech Services - Ethernet jack in wall - no modem. Connection works just fine if I bypass router and connect directly to PC (windows XP SP3 desktop or windows 7 laptop.),Very difficult to establish any internet connection at all. I have to renew IP address many times or go through re-boot sequence multiple times. Once I get a connection it is unusable. If I attempt to ping a URL (either from PC or from router admin page) it is unable to resolve host. If I ping an IP directly (either from PC or router administrator page) I typically get 60 to 80% packet loss. As noted, if I bypass router and make internet connection directly to PC - no problems - no packet loss.Used Cisco Connect software to set up. On advice of ISP changed MTU from 1500 to 1300. Also registered MAC id with ISP and changed from cloning PC MAC to using the router MAC. Downloaded and installed latest firmware version. Did factory reset and re-configured the whole thing. Double checked and swapped wiring.
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Aug 13, 2012
Due to some reason I had to reset my linksys router WRT54G and now I am not able to connect to internet using my router. I tried coupld of settings followings some suggestion over internet sites but doesn't work for me. Still I get no network access message.
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Sep 15, 2012
I just upgraded my router from an old wireless54G to an E1200.The wireless device I have on my Sony Viao PCG GRT-240G laptop is LAN-Express AS IEEE 802.11g miniPCI Adapter
-Initially I couldn't connect at all with this machine (however the other two newer laptops could) so I contacted the Linksys tech and he advised I should upgrade my laptop driver
-After much research about this I found a common fix was to upgraded drivers from the 2004 sony driver to atheros_wifi_9.2.0.480 drivers.
-After I did the upgrade I can connect to the router on the guest account and use the internet
However, on the Main account I can connect to the router but I have no internet connectionGoogle chrome gives error belowThe server at [url]... can't be found, because the DNS lookup failed. DNS is the network service that translates a website's name to its Internet address. This error is most often caused by having no connection to the Internet or a misconfigured network. It can also be caused by an unresponsive DNS server or a firewall preventing Google Chrome from accessing the network.How can I use one part of the network but not the other part? Shouldn't both the guest & main accounts use DNS lookup?
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Apr 30, 2013
I have a few devices I cannot connect to my router or modem but my ps3 and 2 xboxes are connected. I have easy link and I try to add devices to it but it doesn't show me the same options it did before when I added my ps3, and ipod. Now I can't connect my psp or any phone to it, I have the WRT54GS v7.2, those are my only problems with the router nothing.
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Dec 13, 2011
I have had this router with no real problems for the past 2 years. As of now I can't connect to the internet through the router wired or wirelessly. I have tried all the hard resets and other tricks. I can go straight from my internet connection to my computer and it works fine. Once I go through the router using a lan cord all I get is limited or no connectivity. I have tried to access the router set up using the 192.68. etc but can't just states invalid address. Anything else to try or is this thing bricked ?
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Dec 23, 2011
Ok group here's the issue. I have a E2500 router with a wired connection for my sons xbox and 2 laptops connected to it. The laptop I used to set-up the system will usually connect to the router but not allow me through to the internet then after a shutdown and repowering it connects. what to check? The othhitch. Both arer laptop connects without a e running vista home.
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Sep 28, 2011
I am using the following model and version:
Model No.: WRT54G, Ver. 7.0
I am not able to connect to the internet through Linksys Wireless Router. I have tried pinging the default gateway of the ISP provided router IP from the router utility, "Diagnostic", but I am not able to ping it.
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Dec 7, 2011
For some reason my wireless router recognized my pc, or my modem, Neither is it able to connect to the internet. All the lights are on but not flashing/blinking like they used to. I tried to run the setup over and it couldn't find the router even though everything was plugged correctly. I tried reseting the router but that doesn't even affect it. All the lights remain on with on blinking or flashing no mater what I do. Is there anyway for my router to work normal again or do I need to get a ned wireless router?
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Mar 24, 2011
I have a new Linksys E2000, I was unable to connect one of my laptops to the internet, so I decided to call support with the problem, after 45min and not results, find out that the E2000 do not support the Atheros AR 5007, they told me that I need to get a new driver for my adapter. Fine but Cisco doesn’t have a Driver update for this problem or how to fix it, or at least send you a link where to get the fix.
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Oct 21, 2011
A few weeks ago I tried to install vmware to my toshiba laptop to play around with is and eventually install Windows server 2008 virtually. Well I didnt complete the installation and set up because I forgot to write down the registration key #. Ever since then I have had a terrible time getting my network reconfigured and have tried everything with Verizon network support over the phone. I am now unable to get a valid Ip address or default gateway with either my Wireless or my LAN connections. I have done all types of troubleshooting, resetting netgear router, modem, ip config /reset /renew,netsh winsock reset catalog commands and etc . . . STILL NOTHING WORKS ! I have another machine that is a mac book on my home wirless network that connects just fine, the only problem is my machine. And I have also taken this machine to my job and try connect to the wireless public network and all I get is "limited access" I ran the network test that Kadar provided and this is what I get:
Windows IP Configuration
Host Name . . . . . . . . . . . . : JerryDiaz-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
[code].....
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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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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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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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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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Apr 7, 2011
I just bought a new E3000 router less than 2 weeks ago. I spent hours with my tech guy setting up the router so that I was getting excellent internet speed and the connection between my computer and my nas was maximized. In the process of setting up the router my laptop (Windows 7) and the basement laptop (Vista) were set up to access the router. Both work perfectly.These are now the only two devices in the house that can get internet access.The other devices that should connect are:
-2 Laptops (both Vista)
-1 iPhone 4
-2 iPhone 3gs
-1 Printer
I can't get them to connect. I spent an hour with a guy at Cisco tonight who just couldn't seem to get past the idea that it was not the laptop that was the problem.
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Mar 3, 2011
I've been unable to connect to the internet or even my Linksys router (192.168.1.1) from my main desktop. However, I can access the internet and the router by way of another (older) desktop and two laptops.This problem occurred after powering down and unplugging both desktops before a thunder storm. Later that night I powered on and had this issue. ISP didn't have any outages in the area. [code] Network and Sharing Center displays (this computer) with a line connecting to Unidentified Network and the red x between Internet. When viewing the status of that local network connection packets are being sent but 0 are received. TCP/IPv4 and 6 Properties are set to obtain IP/DNS automatically.I don't have any additional firewall software but windows firewall is enabled.
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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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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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