Linksys Wireless Router :: WRT400N Stopped Working With Ethernet Connection?
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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Mar 18, 2012
"Ethernet Connection has stopped working".Its stopped working again and I've run the Network Test and the results are in the file REG.txt attached. I can connect to the internet via wireless OK but I had wireless turned off to run this test.I've proven the ethernet cable OK by connecting another pc to it which works OK.
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Jun 24, 2012
I have the WRT54G router for years and use it to provide both a wireless network for our home computers and a wired network for by internet phone that connects me to my office phone system and for my work computer and printer. Last week, the wired network stopped working. I checked the wiring and plugged my wire into all four of the ports in the back of the router with no success. I followed the troubleshooting procedure that I found and changed the MTU setting. I tried to update the firmware but the screen seemed to lock up and I was unable to complete the task.
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Feb 15, 2012
I have an ASUS X58C laptop which has been working OK to the internet via the ethernet cable but it has stopped working.I used the laptop via the wireless connection to access the internet while away from home and on my return I can not connect via the ethernet but I can connect OK via wireless. The results with the wireless enabled are :
C:>ipconfig
Windows IP Configuration
Ethernet adapter Local Area Connection* 13:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
[code]....
I can see that the ethernet adapter(s) are shown as media disconnected but I don't understand how to make them connected. I also don't understand why there are two ethernet adapters or what the Tunnel Adapters are.Before I did the ipconfig command I went into Control Panel/Device Manager/Network Adapters/SiS Ethernet Controller, right clicked and selected the Update Driver Software which searched the internet for a driver and installed it.
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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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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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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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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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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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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 24, 2012
I have a Century Link modem connected to a Linksys router. I have three computers hooked up wireless. I used another computer to hook up with the ethernet cable because that wouldn't work wireless for some reason. A little while after that, the Linksys network stopped working completely(all three computers could not access the internet). Now I can only connect to the internet if I use a ethernet cable from the modem.
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Mar 8, 2012
My router randomly stopped working after I bumped into the wire. It still shows up as a network you can connect to, but whenever I try to connect, it keeps saying there is a problem with my connection. I tried using a different internet cord, but nothing changes. I even tried to reinstall my router and still no dice.
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Dec 19, 2012
EA4500 was working fine for about 2 months.Now, its not so happy.Power indicator is on.Plug something into one of network ports - nothing, and no indicator LEDs are on.Plug an operational internet cable into it - nothing, and no indicator LEDs are on.
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Feb 2, 2012
Last night, my wireless router suddenly stopped working. I no longer saw my router listed in my available wireless networks, and neither could my girlfriend from her computer. I unplugged the router to see if one of the available networks had disappeared in case my router had somehow been reset, and nothing changed so my computer isnt even seeing my router. Right now, I am wired through the router so I know the router works, but the wireless part doesnt for some reason. I was looking up stuff in the FAQ, and think the firmware is corrupted since the LEDs are all blinking. I was trying to update my firmware following the instructions I found using tftp.exe, however it failed. One problem is that I can't set up a static IP address since I need to access the web-based utility to check my DNS server but I cannot access the web-based utility anymore (maybe cause of the corrupted firmware?). On a related note, there is someone else in my building using a linksys with the default network name of linksys. I had changed my network's name and security-protected it, though that is all likely gone now since I tried to reset the router. My question is what will the network name of my router be if I saw it since "linksys" is already taken. or will there just be two of them?
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Oct 19, 2007
I have WRT54G connected to a cable modem for internet service. Came home at lunch yesterday and all was working fine. Came home after work last night and couldn't connect to the internet. Called Charter cable this morning and their troubleshooting showed I can connect to the internet fine if I bypass the router, so the issue must be with the router (and of course not their problem...). How do I trouble shoot this? I've tried powering down the router and releasing and renewing IP addresses but it hasn't worked.
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May 29, 2012
I have a Linksys WRT54GS wireless router that has stopped working. All it will do is all 4 of the Ethernet port lights on the front light up solid green along with the Internet light. Is there any hope of fixing this?
It wouldn't make that much of a difference, but I already purchased a new LInksys Cisco EA3500, but I cannot get it to do my port forwarding. I have tried everything and nothing works. Have spent hours on the phone with tech support with no solution. My old WRT54GS just simply worked. The port forwarding worked perfect. I have tried the exact same setup in the new EA3500 and no luck no matter what I try.
So, is there anything I can do to get the old WRT54GS working? I have tried holding the reset button in for 1 minute and then unplugging it
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Oct 14, 2011
I was just browsing the net when all of a sudden internet lost connection.I am using Windows 7 64-bit Home Edition.I tried these solutions, but didn't work;
---reboot pc
---turn off the modem, wait 10 minutes and turn it back on
---ipconfig /release, /renew in admin mode
---built-in Windows troubleshooting
---updated drivers
---use different ethernet cables
I contacted a floormate (I'm in college) yet his wired internet works. I have tried wireless. It worked.I have been using the connection for months and this is the first time it has happened.url...
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May 30, 2012
My M20 Valet Plus stopped working suddenly last night. Now no power lights will come on and it now longer transmitts as a connection point . No apparent sign that it's alive. I've owned it troublefree for just over a year, but it is out of warranty. Any way to tell if there is hope of reviving it or if I'm just out of luck? Nothing happened at my end to cause this -- no power interruptions or other odd occurrences.
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Oct 17, 2010
A couple days ago I noticed that my wireless internet connection on my iPhone would cut in and out, then stopped all together. I also had no connection on my mac which is wired to the WRT110. I bypassed the WRT110 and then I had a connection on my Mac meaning the WRT110 is the problem. I haven't changed or added anything lately that could've caused this....
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Jul 25, 2011
I have the Linksys WRT54G And it was working fine for years! Then today my computer shut down and when I turned it back on there was a connection but my computer was not responding to any commands. The icon shows full connectivity excellent connection. When I try to go to a web page it shows Connection Error and cannot get to any web pages.I am able to get on other wireless connections from neighbors but not mine. I have gone thru different directions on here and I am not technical and don't understand what is being said. I try to go to 192.168.1.1 and it asks for a password which I don't have. I have tried everything such as password and admin and get nothing.I am able to get my ip address and default gateway address and don't know the next step.
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Jun 20, 2011
I was using my iphone one night last week and suddenly it dropped out and now I cannot find it in my WIFI networks page.I am using a Linksys E1000?
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Sep 13, 2012
i am a using a WRT54GH linksys router.. which was working fine for a year.. there was thunderstorm and lightning a few days back.. since then my routers internet port (the first port which says internet in yellow) has stopped working..
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Feb 28, 2013
The router stopped working for wired connections. I can still go online using my laptop via wifi, but when I connect a network cable to the laptop and turn off wi fi, connection does not work. Can't go online with a desktop with a wired connection to router.Everything else works via wi fi: iPad, android phone, tv with wifi.
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Jul 11, 2012
I purchased an e4200 about 6 months ago and it worked great until the other night the Internet stopped working on my laptop (wireless). I tried unplugging both my modem (Motorola Surfboard) and router and plugging them back in, but no luck. I can accesss the Internet when plugged directly into the router (with both my PC and laptop), so it looks like the issue is with the e4200. To make matters worse (and I fear much worse), I can't even access the admin page to the router through either the Cisco Connect software or through the IP address. I've tried resetting it, I've tried the 30/30/30 reset (holding the reset button while doing an unplug and pluging back in), and reinstalling the Cisco Connect software, all to no avail.
I've found threads where others have not been able to access the admin page, but they still had access to the Internet url... I haven't found a similar thread where the router doesn't seem to work at all. A few other bits of information I can think of (let me know if there's other information I can provide):The Cisco logo light flashes slowly after reset which I believe is expected.The lights in back of the router seem to work as intended.Running Windows 7 Diagnostics finds the connection "doesn't have a valid IP configuration" and "The default gateway is not available."
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Jul 31, 2012
My router was working just fine forever, the only computer that will connect VIA wire is my desktop, everything else for it to connect to my network it has to go wireless. Things like my blu ray player just will not connect. I am not an expert at all, but why is only the wireless working? I can use the Cisco connect and adjust the settings if need be.
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Apr 28, 2011
was using windows 7 ultimate OS. last night my internet antenna was hit by lightning. later i switched on my PC and i was to browse internet, but i couldn't connect to it. i don't know whether my Ethernet port was damaged by lightning[CODE]
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Sep 23, 2012
I tried searching google and Cisco Home Community for this answer, but no luck. Maybe I didn't phrase my search correctly. I have an external drive connected to a mac mini which is shared on the network. When transferring folders to or from that external drive, our internet connection stops working until the transfer finishes, then comes back up. I've tested this in a variety of ways. Any transfer of data from shared folders in any combination of devices causes internet to stop working both on wired and wireless devices until the transfer is done, then they all work again. Router firmware: 1.0.03.
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Apr 22, 2011
The other night we had a thunderstorm. It kicked me off the internet. Now, I can connect directly to my computer to my laptop (wired), but when I try and establish the connection between the Cable Modem and the Router...it will show a connection between my PC and my netgear WND3400, but not between the router and the cable modem. Also, the ethernet port on router does not light up when connected to modem.
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Jun 28, 2011
We had a storm the power went out when the power came back and I started my computer I had no internet. It is a gateway desktop MFATXPNT YKT 500X bought in 2003. I have tried loading drivers no luck and I have tried a usb ethernet adapter in which the computer says it can't load the drivers.
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Aug 8, 2012
Three nights ago, around 9:30 P.M PST, my wireless connection to my router began constantly dropping every few seconds/minutes. This happens to all of my wireless devices only while I am in my bedroom, nowhere else. In every other room, my connection is stable.
Connection Issue: Wireless
ISP: Comcast
Router Model: Netgear N300 Wireless Gigabit Router WNR3500U/WNR3500L
[Code].....
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Oct 31, 2011
My internet went down temporarily last week and ever since my computer has not been able to maintain a connection. It will pick up the signal intermittently but produce painfully slow internet and then promptly lose the signal all together. The wireless connection is working perfectly on laptops and smart phones, even when in the same position from the router as my PC.
Router: Netgear Dg834Gv3
Wireless Adapter: Netgear WG111v3 USB
Computer: Dell Vostro 200
ISP: AOL
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Mar 3, 2008
Last night, my wireless router suddenly stopped working. I no longer saw my router listed in my available wireless networks, and neither could my girlfriend from her computer. I unplugged the router to see if one of the available networks had disappeared in case my router had somehow been reset, and nothing changed so my computer isnt even seeing my router. Right now, I am wired through the router so I know the router works, but the wireless part doesnt for some reason. I was looking up stuff in the FAQ, and think the firmware is corrupted since the LEDs are all blinking. I was trying to update my firmware following the instructions I found using tftp.exe, however it failed. One problem is that I can't set up a static IP address since I need to access the web-based utility to check my DNS server but I cannot access the web-based utility anymore (maybe cause of the corrupted firmware?). On a related note, there is someone else in my building using a linksys with the default network name of linksys. I had changed my network's name and security-protected it, though that is all likely gone now since I tried to reset the router. My question is what will the network name of my router be if I saw it since "linksys" is already taken. or will there just be two of them?
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