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Troubleshooting step of hubs blinking constantly

Troubleshooting step of one hub with two ports whose collision lights are blinking constantly

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All lights on all connected ports on a netgear gs105 switch rapidly flashing constantly; data traffic seems slow or drops. Occurs regardless of how many devices connected or which ones.


1. A switch is a dumb device it just transfers data via the ports
2. if you are having slow or dropped data this possibly is due to bandwidth issue.
3. contact your internet service provider to check your speed and you line condition.
4. You didn't say if you were using a router, but if so this could what is call "collision"
5. some switch do this due to speed of the data throughput\.

Jun 23, 2011 | NETGEAR ProSafe GS105 - Switch - 5 ports -...

1 Answer

I just bought my DYNEX 4-Port 10MBPS Hub. My PC and PS3 are attached to the Hub. Problem is only one work at a time. When I attach the secound one the green light is flicking real fast. As per manual...


A "Network Hub" is not a good device for connecting to a network. Collision is the most common problem with this device. Since you said that the device is new, maybe you can return it to the shop you bought and buy a "4 port Network Switch".

What the difference is that a hub transfers all the data that comes in one port to all the other ports. But the switch can decide destination of the incoming data. So, when the hub is sending data to a device, that device has to know whether or not to accept the data. This doesn't happen here in your case. So, better buy a "Network Switch". They both look alike and price difference is also not that high.

Aug 19, 2010 | Dynex 4-Port 10 Mbps Ethernet Hub

1 Answer

A hub with two ports its collision lights is blinking almost constantly.what troubleshooting step to follow?


if not familiar with cat5 b color code use 4 pr tester on cat5 that is connected to these ports

Feb 03, 2010 | Computers & Internet

1 Answer

Lights blinking or steady on nh1005


yellow&orange=collisions/errors check cat5 termination

Dec 19, 2009 | Linksys (NH1005) 5x10/100 Mbps Networking...

1 Answer

We have network collision very often, consecuently we have to reset the hub.


Network collisions happen all the time (lots of data, small pipeline) and are not a major problem. The router requests a resend on data expected but not received. Personally, I tend to ignore the "collision" indicator. All the data manages to get through anyway, in a matter of milliseconds delay.

Dec 02, 2009 | 3Com OfficeConnect TP800 8-Port Ethernet...

1 Answer

Genius LAN 16 Port Hub Dropping connections intermittently


Col probably means Collisions. There are probably collisions going on on your LAN. Collisions can happen when there are two adapters with the same IP address or when there's a bad cable. My suggestion is that you make sure that you have unique IP addresses and that you don't have any bad cables - cable tester comes in handy.

Mar 27, 2009 | Computers & Internet

1 Answer

Ive got a dsl modem a xbox 360 and a computer i pluged in a internet cord to the hub from the modem and it only apears as 1 2 3 or 4 but dosnt under col why is that?


The hub is showing you that a network connection is present. The LED that says Col indicates when collisions occur. In a blatant attempt to avoid explaining how ethernet networks operate, suffice to say that no collisions is a good thing. Some collisions is tolerable and normal, and a lot of collisions indicates a problem and can bring your network to its knees. Don't forget to turn networking on in your xbox.

Mar 13, 2009 | Dynex 4-Port 10 Mbps Ethernet Hub

1 Answer

Hub light flashing for long time


If all lights are flashing on this device and there's no computer or devices connected on those ports and only telling us that the hub is already bad and there's no way to reset this hub since it doesn't have any reset button, the next step that you need to here is to ask for a replacement for this device I think it has a 5 year or a life time warranty from Dlink so contact them and have this hub replace...

Hope that helps..........

Oct 06, 2008 | Computers & Internet

1 Answer

Addtron AEF-1004 network hub faulty?


Hey Beastman,

You have a real beast screwing around in that hub. You have choises:

1. Call the animal control department :)
2. Shoot it with a 22 :):)
3. Get another one.

A Hub acting like that has got its marbles juggled. Switching it on and off is the only way of flashing, and if that doesn't work, its jinxed. If you network it, you could spend a lot of time fixing network problems.

Hubs are cheap and not worth the headache.

Good luck.

Feb 21, 2008 | Addtron (AEF-1004) Networking Hub

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