Router Lights With No Physical Connection
Nov 7, 2012
Today I woke up and wanted to connect to the internet via my laptop. The current network I have is the DSL modem connected to a WR841ND TP-LINK router, and then connected via LAN port to my desktop PC, and via Wi-Fi to a Laptop.However, my connection was unsuccesful. I power cycled both the modem and the router, awaited for a stable connection, and tried again with no result.That's when I noticed the lights on my router seemed strange. While the router's LAN port 1 to the computer was connected and lit, the LAN port 4 was also lit, but it wasn't connected to anything. Then I noticed my wan port showed the same behaviour, since it was already unplugged, but its light was still on.
That's when I decided to do a factory defaults reset, a hard reset, and reuploaded the firmware to the router. No change at all.I decided to connect my DSL modem to the computer directly, and internet works like a charm, so everything points to the router as the source of the problem.Now, I wanted to know. What would be the procedures I should follow to test or repair the router before declaring it "deceased"? Could this be more of a firmware problem? A hardware one?
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Aug 9, 2011
Here's the setup I have:
iMac (Aluminum)
Apple Time Capsule 1TB
AT&T DSL
When connected, all lights on modem are green, so is the light on the Time Capsule. When I go to a website, page cannot be displayed. When I insert the ethernet cable directly into the back of the iMac straight from the DSL, the internet works just fine.With all lights green but no internet connection, what am I missing?
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Jun 19, 2012
I am using cisco c3660 to act as Terminal Server for the communication of production machines in my company, recently there is a communication lost issue happen and its due to physical cable unplug from the machine. to troubleshoot for this issues i have to physically go inside my production area to check on it, as i understand from vendor we can check on the physical machine to see whether the LED light on the module is green or not, but in case of need to troubleshoot at night time, its time consuming as i need to travel back to company. is there any command that i can issue in the router c3660 to check on the physical connection between c3660 router and the production machine? the IOS version is IOS (tm) 3600 Software (C3660-I-M), Version 12.1(4)
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Oct 2, 2003
I have at the core a CISCO 4503 and need to connect various 3COM 3300/4400/4900 access switches thru fiber. The problem is that the Cisco core 4503 switch fails to recognize only the 4900 3com switches ie the link status shows down. The fiber multitude link is tested and OK.The modules on both the switches ie 1000baseSX are also tested and ok.
The Cisco switch has a 6port gb ic with 1000baseSX moules and the 3COM 4900 has a 4-port 1000baseSX module.
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Oct 31, 2011
We recently had a big storm and lost internet connection to our house. Whilst internet connection has since been restored I've noticed that there are now orange lights above the port where the ethernet cable connected to on our notebook. I also cannot get internet connection using the ethernet cable. Does this mean my internal modem has blown? I can use the wireless modem with no problems.
If the modem has blown, how much are they usually to replace and is it relatively easy? I have a Inspiron 1525 Notebook.
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Jun 14, 2011
what is physical diffrance between switch and router?
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Jan 15, 2012
like today randomly my internet went down. And then everything changed back to its original like my SSID from Netcom it changed back to wireless and everything was default and also the PPP was off so i wasn't able to connect to the internet. So i went to my router setup page on the internet or whatever and turned it back on. So now like the internet on my computer which has a cable to the router works but the wireless internet doesn't work for my laptop nor ipod. I can see the connection on the laptop and ipod but when i try to connect it keeps saying that it is unable to connect.
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Apr 9, 2012
All the light indicator of the router are working as they should,however there will be no internet connection.This happens about once a day(rest of the day the internet works fine),I then have to switch off the router,wait for a good amount of time and then switch it back on and then internet will work fine.I use the router for many devices like my windows 7 laptop,an ipad,iphones.
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May 1, 2013
I have a Cisco E4200 router connected behind my Comcast cable modem.
The small LED lights located at each network cable plug-in on my router are continually blinking orange all at the same time over and over.
I also notice on all my computers that are wired to this router the small LED lights near the network card plug-in are also blinking orange.
what these orange lights mean and if I have a problem?
My internet service seems to work OK but I'm not sure what is causing all these orange LED's to blink and is there something wrong that imay be slowing my system down.
I have upgraded my Cisco router to the latest firmware and also power reset my cable modem and router several times with no change in the problem.
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Oct 25, 2012
I have a pair of router Cisco 2800 running in HSRP, now I want to configure one sub interface with another sub net, Will my current IP on physical interface work or do I need to create two Sub interfaces for each network. Do i must need encapsulation on sub interface
Current Config:-
Router 1:-
interface FastEthernet0/1description Connect to LAN_SW1 Gi1/0/1ip address 192.168.1.13 255.255.255.0no ip redirectsduplex autospeed autostandby 1 ip 192.168.1.1standby 1 priority 90standby 1 preempt
Router 2:-
interface FastEthernet0/1description Connect to LAN_SW2 Gi1/0/1ip address 192.168.1.3 255.255.255.0no ip redirectsduplex autospeed autostandby 1 ip 192.168.1.1standby 1 priority 110standby 1 preempt
For second network I do not require HSRP
Router 1:-
interface FastEthernet0/0description Connect to LAN_SW1 Gi1/0/1no ip addressduplex fullspeed 100
[ code]...
Router 2:-
interface FastEthernet0/0description Connect to LAN_SW2 Gi1/0/1no ip addressduplex fullspeed 100
[Code]...
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May 23, 2012
Today a bought a brand new Netgear WNR2000 router.Upon setup the wifi was working correctly. All of the lights where active and it seemed everything was in order.Because the power cord was in the way I moved it and plugged it into a different powerpoint. From then onwards my router has not been working. Only three of seven lights are active (green).
I have tried unplugging and replugging all network cords. I have also turned it on and back off, reset the router and run the initial installation program thrice.What should I do now? Nothing so far has effected it. The computer I am installing it on is running Windows XP and the laptop I intend to use the wifi on is Windows 7.
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Jul 11, 2011
So the power light on my WRT54GS router is off but my LAN lights 1-4 and the WLAN light stay on when power is attached but no cables are in the ports.
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Nov 10, 2011
Are the lights supposed to always blink in random order..the power light is solid but other 2 beside it and the 1 where the desktop is plugged in are blinking like crazy.
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May 24, 2012
My previous setup was a ProSafe GS108 switch, 10/100 Dlink router/switch used only as a switch, and a DI-655 router/switch. With this setup, activity when I wasn't using any of my computers was zero. There would be no blinking activity lights.
I dumped the ProSafe and 10/100 switch, and use the DI-655 only for my internet uplink and wireless, and now have everything else plugged into a Cisco GS200 switch. There is activity now every two seconds. I presume this prevents the Green energy saving features from kicking in as the ports are in use.
What's the difference that's leading to all this activity that presumably wasn't there before?
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Mar 31, 2011
I have an E1000 wireless router and after rebooting it from the web admin page it won't stop blinking. I tried following the reset instructions on this page but it is still blinking.
[URL]
I can't access 192.168.1.1 via my browser either. Is there anything else that I can try before considering it defective?
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Jul 17, 2011
I went online with a tech real quick before I found I beyond complimentary tech support. They say my router is working like a switch. I cannot get any wireless access and to the three direct connections to the router only one is working. The lights are constantly blinking, with the power light blinking every so often
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Sep 11, 2011
Somehow in the process of researcing how to add my new laptop to the router, the router quit working and is now just blinking the blue panel lights.I was attempting to download Cisco Connect to my flash drive and instead it began to execute and I aborted that in about 10 seconds.
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May 14, 2012
I have a LinkSys WRT 160 N wireless router, the router just stopped starting abruptly, when i power cycle the router, all the 4 ethernet light come on, and that is where it gets stuck. I've tried using the reset button but there is no effect after i depress the button.
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Aug 21, 2011
My e1000 router (v 2.1) has reset itself and after that all lights except the wireless adapter has gone solid blue, I have no ethernet conectivity and hard reset the router did not work.
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Feb 9, 2008
I had successfully set up my new WRT150N router and it was working. But then it just stopped after about 12 hours. All the lights on the front of the router are blinking. When I directly connect to the router, my computer can't detect it. I've browsed through these forums a bit and tried a few things - the reset button (60 seconds), unplugging the router, downloading the EasyLink Connect tool, but I'm still stuck.
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Jan 17, 2013
when i bought the router, the function worked fine, even before my first firmware upgrade. Can CISCO fix this? I tried everything...power off, reboot, etc...that stupid button is not working....
if something as simple doesn't work, what's next on this router to break?
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May 7, 2011
When I came home tonight, the lights on my E1000 hardware version 1 (that I have had for only 9 months) were, as best as I can describe, blinking like a digital clock blinks 12:00 over and over. All of the blue LEDs would light up at once, and go off, repeatedly and rapidly. This is the second time this has happened - the first time (about two weeks ago) I called a techie friend and he had me hard reset the router (30 on 30 off 30 on) and it worked, I just had to set up my wireless network again. This time, I just unplugged the cable from the back of the router, waited about 15 seconds and plugged it back in, and it went back to normal.
In case someone may be wondering, unplugging the from the surge protector did NOT work; when I first noticed the lights blinking, I unplugged it from the surge protector, waited about 10 seconds, and plugged it back in; the lights continued their rapid erratic blinking. I then did what I described above - I plugged it back into the surge protector, and then unplugged it from the back of the router, waited, and plugged it back in and it was back to normal.
I thought perhaps it needed a firmware upgrade, but checking the website, while I was able to locate the site to upgrade the firmware for E1000, I could only see an upgrade for hardware Version 2, and my router is Version 1 - which, from what I understand, is NOT what I want, as that firmware is for a different hardware version and may cause problems on my Version 1 router.
While my router seems to be fine now. Is my router starting to kick the bucket already? I haven't had it that long - bought it last September. Do I need to upgrade any software or firmware for it? If so, where do I get the correct upgrade for my hardware version?
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Apr 28, 2011
I am on a surge protector and we lost power last night. This morning we were stilling experiencing a brown out but now the power is back 100%. I've walked through the E1000 router reset and not matter what I do, all the lights except the power light blink rapidly and dimly. Could the router be fried even though it's on a surge protector???? It's less than 6 months old so hopefully still covered by warranty.
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Jul 29, 2011
As of two days ago my DIR-655 seems to have stopped loading webpages every 10-30minutes for periods of up to 5-15 minutes, as in they the reloading icon will constantly be circling and the webpage remains blank, no error or anything until it says failed to load on my web browser (tried multiple browsers such as Safari, Chrome, IE and Firefox). This problem occurs on every computer on my network, laptops (both Mac and PC) and desktops. When this problem occurs all lights on modem and router seem to be normal no signs of anything going down but I originally thought that this affected wired and wireless but I seem to have narrowed it to culprit being the wireless. When connected to the PC I can browse for an indefinite amount of time without the webpages failing to respond, however when I connected to WiFi through Airport on a Macbook Air my webpages start to begin failing to load around 5-10 minutes of browsing which affects all computers connected to the network (essentially all computers failing to respond to the internet during this outage).
Interestingly when this problem occurs, if I am connected to Skype or Aim it will stay connected and I can still chat with people but I will not be able to sign onto AIM if the problem occurs before I sign on and I try to sign on during the outage. If I am streaming a video from justin.tv or ustream it still continues to stream during this "outage".I have the revB of the DIR-655 and have tried resetting the modem, turning off the firewall, upgrading firmware to 2.03NA from 2.01NA and setting the MTU to 1400 (default 1500) with nothing working. I am using Time Warner Wideband ISP and have connected the modem directly to my PC and for the 30minutes or so that I tested the web browsing it seemed fine and did not have any errors.
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Aug 23, 2012
My EA4500 is not working. The power indicator light is on but the green and yellow lights on the Internet port are not flashing and the modem the EA4500 is connected to show no activity on that port. Also, the EA4500 is not broadcasting so I can't even connect to it to use Cisco Connect to troubleshoot. I tried resetting it but it did nothing. This has happened before but is usally fixed with a reset.
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Jun 24, 2012
I've been using a WRT120N on a local area connection.The WRT120N acts as a gateway and also to connect to the PPOE connection, via a bridged adsl modem.I've noticed that the LAN port 1 was flashing although the network cable was disconnected from the physical port. I've restarted a few times but to no avail as well. Ever since that, I've noticed that connection through cable are unstable and hard.Now, I'm not able to reset or upgrade the router's firmware.Is there any other way to be done so that I can get this router working as normal again.
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Apr 21, 2012
I have an E1000 Wireless-N router. I was having trouble with connecting to the internet so I disconnected the main power supply from my E1000 router. When I put it back on, the blue light above the middle button with the double arrows on it came on. It was never on before. The manual says that it indicates a wi-fi connection. I do not have wi-fi.
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Jan 29, 2012
i want to know the physical connectivity of the two pc's
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Apr 22, 2011
I have tried changing both the router setting and the computer to force a 100 Mb/s connection, but this results in a complete failure to connect. The LAN connection only works in 10 Mb/s mode.This is the first time I've ever experienced a LAN that was slower than my internet connection.Yes, I have upgraded to 1.02A firmware.
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Aug 9, 2011
Is-it possible to configure a dedicated virtual IP address for VPN terminaison on ASA in version 8.3 and later ?I don't want to use physical IP address on my outside interface.
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Jul 20, 2011
Do you know an easy way to determine the physical location of the device were an IP address is attached? IP Geo location doesn't work well.Is something like this possible? I know it could be if you are the network administrator and know the location of your equipment and stuff.
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Apr 21, 2011
I'm a network admin for a medium-sized (500-700 people) multi-site business and I have a simple question. Is there any utility or method I can use to identify the physical path a packet of data takes from a workstation on the LAN to a server on the same LAN?
For example, if I send a tracert command at google.com, I can see every router the packet touches before it gets to Google's router. Is there a method I can use to determine a similar path with switches in my internal network? If I use tracert or pathping, I only get a single hop since the workstations are on the same LAN as the servers even though I know there are two physical switches between them.
Basically, I want to send packets from a group of workstations behind a couple switches to a server and see if the packets are being lost in the switch somewhere to identify if there is a failing switch or something causing network slowdowns. map out the network more accurately so it would be useful to know.
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Aug 6, 2011
I've had a strange problem with my laptop for quite a while now. From time to time, my entire wi-fi capability vanishes. The green wi-fi light goes off and my Intel PROset/Wireless tells me that I do not have a wireless physical adapter installed.From there, I go to Network Connections. Sometimes, I can hit "repair" under Local Area Connection 3 and after some struggles, the green light will come back on. However, sometimes when I go to Network Connections, I cannot repair the Local Area Connection, because the 1394 Connection is no longer even listed and, from all ways of searching, doesn't even exist on my laptop.In that case, I have to restart my laptop. Sometimes, a restart works and the wi-fi capability magically returns. Sometimes a restart does not work, and I have to power off, wait, and power back on my laptop. And sometimes, I have to keep rebooting SEVERAL TIMES in a row before I get wi-fi back.
I'm not sure what to do for it, nothing has changed with the router or the location of the router. My laptop will be fine for a couple of weeks, or I may lose wi-fi ability a couple of times in a week or so. However, at the moment, I lose my wi-fi adapter frequently, often every two minutes to perhaps every ten minutes. It has "acted up" this badly only once before (probably a month ago), and I just keep rebooting for a couple of days until everything seemed to calm down. However, I can't keep just restarting my laptop every five minutes
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