Cabling / Cards :: Green Lights Flashing In Sync?
Jul 10, 2011
There was a problem with one of our servers. We were unable to connect to it remotely. We restarted the server. Still we were unable to communicate with it. Static IP is provided.
In the connections settings, it showed the send and receive as 0. I noticed the network card lights. Both were flashing green in sync, like twice in one second. I removed the cable and funny thing was, it was still blinking non stop in the same way. I plugged the cable back in and took back out, the same result. After a second restart of the server, it started working normally and i was able to communicate with the server.
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May 5, 2012
Thinking back, about a month ago I updated the firmware (I can't check version at the moment). The switch has been working fine since then. Today I needed to move some power cables and the switch lost power. Now ALL of the LED lights are flashing green and I can't access the switch. I've tried setting a static IP on my laptop to 192.168.1.20, mask 255.255.255.0, and accessing the switch on 192.168.1.254, but there's no response. I've tried holding in the reset button for at least 30 seconds while the switch is powered on, AND while powering it on. None of that has worked. Also when I first power it on, the system LED flashes orange very quickly for a second or so, then all of the LEDS start flashing green.
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Mar 7, 2013
dcm425 dont turn off also has 4 solid green lights...it happen after a power outage my router works fine but my dmc425 cable modem just has the 4 green solid lights when it's plugged in when i push the power button nothing happens at all
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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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Dec 16, 2012
I have a 1 month old SG200-26P - the green status LED is blinking constantly (> 30 minutes), I cannot access the webGUI, nor is it responding to ping. I have tried resetting via holding reset for > 10 seconds with no effect, the status/activity LEDs are still illuminating against all connected ports, excluding any of the PoE ports which are running a couple of cisco IP phones. I've tried accessing the device via both the static IP I configured, and the default IP.
I have disconnected all ports, then powered on the device, but same results...Do I have a dead switch? Anything I can do other than return for warranty claim which is going to be last resort due holiday period and leaving the customer offline for extended period...
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Mar 18, 2009
I have a 1 month old SG200-26P - the green status LED is blinking constantly (> 30 minutes), I cannot access the webGUI, nor is it responding to ping. I have tried resetting via holding reset for > 10 seconds with no effect, the status/activity LEDs are still illuminating against all connected ports, excluding any of the PoE ports which are running a couple of cisco IP phones. I've tried accessing the device via both the static IP I configured, and the default IP.
I have disconnected all ports, then powered on the device, but same results...
Do I have a dead switch? Anything I can do other than return for warranty claim which is going to be last resort due holiday period and leaving the customer offline for extended period.
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Jan 18, 2011
Recently we had a situation where our users were unplugging one of our un-mounted 1252 LAPs. They would do this so they could borrow the wire to direct connect any one of their devices not realizing they were disconnecting a wireless access point. After discovering that the AP was unplugged once again, our admin plugged the AP back to the network but noticed that it no longer would connect to the controller. We can no longer console into the AP but can console into all other APs we have. All 3 lights are now green. Radio and Ethernet are solid and Status is blinking. I found the Cisco doc explaining the meaning of the front panel lights but have not found this particular configuration. What these lights mean and why not being able to use the console port?
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Jul 11, 2011
I am replacing an old Catalyst 3550 (that has 2 Gig ports) with a 3750 (that has 4)- I used the exact same configuration in the new switch. When I plugged in the new 3750, the trunk ports started blinking from green to amber. I dont know why this is occuring- it SEEMS to be fine, but we havent thrown a whole bunch of traffic over it.
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Aug 29, 2012
I have DSL 8Mbps DL and 768kbps UL,Internet -> Modem -> Cisco Router -> Firewall -> Switch Core - > Multiple switches like sfe2000p,CiscoRouter: i use port gig0/1 for PPPoE and i use port gig0/2 for LAN static,Router port gig0/2 with 122.54.144.153/29 connected directly to Firewall port13 with 122.54.144.154/29,i want 122.54.144.153/29 will my default gateway,Please include no limit bandwidth,filter etc at router, Firewall will be DHCP Server and control the bandwidth, filtering etc and the client computer should get 8Mbps.
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Aug 9, 2011
We have a Cisco SRP 527W router that was not showing up on the LAN. so we tried a Factory Default reset but it seems to be dead.
The power light is flashing constantly,the 4 LAN light are constantly on,the DSL Data light comes on for 1 sec when device is powered up.
i have tried connecting directly to a PC, the NIC reports as network cable unplugged.i have tried the (power on device, hold down reset button, power of after 30 sec, power on after 5 sec, release reset button after 5 sec) but still "network cable unplugged".
the firmware flash utility will not find the NIC the device is connected to.the router is less than a year old, is there a fix or is it a warranty replacement ?
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Jan 21, 2013
Region : Others
Model : TL-WR740N
Hardware Version : V4
Firmware Version :
ISP :
My router is not working and only all lights are flashing everytime after interval of 2 seconds.
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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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Sep 8, 2012
I've got on-board LAN but I don't know how to use it. Am I meant to be able to surf the internet just like that if i have got on-board LAN???
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Jun 27, 2011
My Internet is down. I appear to be getting power from the modem as all the lights are lit up. I have a wireless router. On my desktop I clicked on the Network icon and it said "3WIRE***" is in range but requires a Network Key (also called a WEP Key or WPA Key)? Could this be the problem? I've never had to enter a password to access my internet before. Do you know how I can find (or reset) my password? It's a D-Link router.
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Apr 29, 2012
My hard drive crashed and had to reinstall my OS using manufacturers disk now everything works but the internet, the integrated ethernet card is not listed under network adapters in the device manager, its a clean install of windows xp media center edition 2005 sp2, the device manager shows no drivers missing.
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Sep 17, 2012
i am using win7 64 bit on dell n5110 and my lan is not working properly. it wont even detect the cable . when i plug in the cable its like nothing happened. but when i uninstall and reinstall the driver, it sometimes resolves the issue. but i have to do this every time.
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Aug 1, 2012
I have an Eee-PC and im trying to connect to the internet via my HUAWEI E173 MOBIEL INTERNET STICKWhen I plug it in it reds it, but only like a mass storage device.
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Jul 6, 2012
I have network: 20 PC's conected to a switch (ordinary switch), from switch to a router (for DHCP and internet conection), Router is connected to a cable modem.
Lately an issue arised. One PC started having problem witch connection (PC is windows 7, up to date). PC instead of 192 addres is getting 169 (i need to highlight it is a problem with only one PC). That means the PC is connected to the Router but it is not getting proper IP addres. After changig the addres to static the connection ws fine for few days and then in networc connection icon (botom right) it came up with 'unidentified network' message. I changed the patchleeds, even changed the connection with known working line (from outlet to patchpanel) and the connection was coming and going. Then I changed network card with the same resoult. I noticed strange thing: While the IP is 169 or when 'unid net' when I unplug the cable from outlet then plug back and do so couple times in one moment the connection is back and stable but only for some period of time. Cables had been re terminated with new jacks and at the patch panel. Drivers for network card are up to date.
Why is the connection coming and going?
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Nov 3, 2011
I'm currently volunteering at a children's group near me. They've just moved offices and are wanting a computer network in place. I have quite a bit of experience with hardware and software troubleshooting, but anything past the server is beyond me.They have a telecommunications box, as many places do, and the box has a set of patch boxes that are, according to the telecommunications people, plugged in and good to go. Each office has tunnelling on the wall with network sockets, again the norm.
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Jun 23, 2012
I have found a great application that allows your PC to become a hotspot. It can also protect the wi-fi. Now remember whatever its your backend on the PC is what kind of network and speed you get such as, if my desktop connected through ethernet and I install the virtual router on the desktop than my laptop can connect to it depending on my Wi-Fi adapter on it. It could be B/G/N. B and G gives 54MBPS and N gives me 65MBPS.
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Jun 6, 2012
Can I use ONE wireless usb adapter for two computers? Of course not at the same time but I was wondering if it is possible? Also, do I need to have the disc to install it or will the 2nd computer I want to use the wireless usb adapter for prompt me to install the software when I put it in the usb drive? I have misplaced the cd the usb adapter came with which is why I am askinit is a laptop and I know I can use ad hoc but I am trying to set up wireless on that laptop without ad hoc.
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Mar 8, 2012
my acer cannot detect any wifi and also dont have network adapter
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Jul 19, 2011
I have this phone that was working fine until a friend moved a desk and positioned on top of the cable the goes from the phone to the jack, he did it without knowing it.So we took the cable we went to the store a bought a cable for phone with only one pair of wire, we connected it and it did not get any line tone.I did notice the old cable have two pair of wire.But this is an office phone with two line number so at least one should be working right? I just realize this now.
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Oct 1, 2011
A few weeks ago, i noticed that my desktop was unable to access the internet, even though it shows that it is connected. i eventually decided taht it must have been a hardware issue, so i bought a new motherboard. after installing the motherboard, an a fresh installation on Windows, i saw after the drivers were installed that the same thing was happening. I pinged sites, and i got no losses on data. i also did a tracer, and it showed me that it is in fact connecting.
I noticed that when I connect the pc to the network(it is always via cable) it recognizes the network as "network", whereas if i use the same connection for my laptop, it brings up the network as "NETGEAR", which is, in fact, my network's name.
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May 7, 2011
I just need to add new connectors and I'm good to go. The PCs have cabinets with Ethernet sockets in them and these will also need re-wiring with a RJ45 jack then a faceplate mounting as they are totally bare at the minute.Also, I think I need to learn this as a whole, it will become a regular thing, do I need the following tools to do the basics of cabling ?RJ45 Network Crimp Tool 10 Boots & Ends Crimping Kit Play.com - Buy RJ45 Network Crimp Tool 10 Boots & Ends Crimping Kit online at Play.com and read reviews. Free delivery to UK and Europe!|cat:3516420|prd:3516420[CODE]
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Aug 24, 2011
i have 2 laptop with wifi and ethernet and a pc with ethernet. so can i connet these 3 together in this condition: first laptop to second laptop with wifi, and second laptop to pc with wire. so i can play game 3 together or connect internet all to one internet and etc...can the second laptop be server?i dont have hub, router and adapter. i have only cable.
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Jan 13, 2013
I'm installing a wired network in the office, going to upgrade from a cat 5 to a cat 6. My question is cat 6 cables clipped same as cat 5 using same rj45 clips? And is coloring same, am going wg-g wo-b wb-o wbr-br.
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Jul 14, 2011
I want to add a new phone line to a small office in a hotel. They have avaya phone system and they are currently using 6 or 7 phone lines. From the avaya wires are run to the 66 block and from there to the outlets. So i think i can connect a cable from the avaya to the 66 block and it automaticaly give an extension number, but how do i add a phone line number to that connection?
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May 11, 2011
I have a wave spot controller. That is connected to my PC(Fedora 14). In Shell I'm < arp -n > then I'm getting "Incomplete" in the place of Hardware Address.
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Apr 24, 2013
I keep getting a 50% loss on one workstation. I tried switching out the network card and that seems to have resolved the issue... Do network cards exhibit strange behavior when they fail or am I overlooking a deeper issue?
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Apr 1, 2013
I have a fee pcs at home...all are able to connect to the internet but theres only one thats not able to...the network and connection centre keeps and changing from identifying to not connected. The cable itself is fine.
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Jan 11, 2013
Having real problems setting up a USB NAS driver adapter. I bought this adapter here: USB NAS Adapter for HDD Caddy UPNP Printer Server SAMBA | eBay
I have plugged it into my router via the ethernet cable provided, then I login to my router via [url]... and check for the attached devices - I can't see the USB adapter showing up. My router is: F@ST2504n. Is there something I need to do first to make it show up?
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Dec 30, 2011
I can open files, play videos, run programs, etc. Windows installed without a problem.However, I can't connect to the Internet. At all. I can't even register my version of Windows because I can't contact Microsoft for verification, because the connection won't get through. No Internet devices can be detected.That was with a long cable wired directly to our router, which is next to our modem.So, today, I bought a D-Link Xtreme N Desktop PCI adapter to connect. Still no connection... I don't think the PC even detects the adapter, because the drivers coming with the adapter can't detect it, and the light on the adapter doesn't turn on.That shouldn't happen. Both the cable and adapter go directly into the motherboard. My operating system is Windows 7 Ultimate 64-Bit, and my motherboard is an Asus P8Z68-V PRO.My ISP is Cogeco. All other computers and wireless devices in the house work perfectly fine.
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