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Internet disconnect I have a self built PC and previously thought it was my internet provider causing my PC to constantly disconnect when under any download pressure or fast surfing between pages but after moving to a new provider I found this is still happening. More if anything. Can you help me with this issue. I am lead to believe this may be a driver issue

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Re: internet disconnect

It could be a problem with your router. You can try to change the MTU value. Mine is at 1492.

Posted on Nov 29, 2007

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My internet keeps disconnecting, never had this before, the internet disconnects, i restart the router manually and internet is back up for about 5-10 minutes and it disconnects again. Everytime i look...


There could be a couple of causes for this issue. Your internet could be degraded when it gets to your house causing disconnects. You will have to contact your Internet Service Provider in order to have them resolve this issue. Normally, they will replace splitters and may even replace lines outside of your house. You could also be having problems with the modem directly. The may replace this. You could also try to upgrade the software on it. Click here for the update page for Arris.

Typically, I recommend you unplug the router, plug the computer directly in the modem and see if you still have the problem. If you still have the problem then you know it is just the modem. If the problem resolves itself then you know the most likely culprit is the router.

I would also recommend that you update your router firmware as well. Do a google search for the brand name of the router and go to the companies website, look in the support/downloads section for updated software.
--If possible, try a different Ethernet port on your router. You may have a bad port.
--Take out and reinsert all Ethernet cables on your network. Loose cables can cause disconnects.
--If possible, replace the Ethernet cables. Bad cables can cause this.

Lastly, you could be having an issue with the Network card(NIC) on your computer. Network cards are either built into the modem or external(a card you insert into the motherboard). Using the process of elimination and the steps above, you can hopefully narrow down the problem to one specific component of your network.

Let me know if you have any questions.

May 16, 2011 | Arris Touchstone 450a (CM450) Modem

1 Answer

Modem keeps loosing connectivity. I have to turn off the modem and restart it to access the internet. Running 2Wire Gateway.

call your internet service provider and report first this incident. in most cases its with the service provider that has problem causing disconnection in your internet.

Take a look also with your modem device, observe when you got disconnected does led indication lamp turn off or your modem restarted itself. that could also be a problem with the power supply of your modem. better check with multitester if output voltage from power supply is dropping.

go check also the ethernet cable if this is not loose, fix it properly, you should hear a snapping sound means it is lock properly.

Feb 09, 2011 | AT&T High Speed DSL Modem

1 Answer

Occasionally, the power light will blink slowly, and no other lights are on, and there is no connection. Disconnecting the box completely and reconnecting, and powering up solves the problem. What is the...

Intermittent connection issues are very difficult for internet service providers to trouble shoot. The first step in trouble shooing any Intermittent connection problem is to look at the chain of equipment involved in flow of data from the internet service provider to the end user. In most homes the packets enter from the main cable line to the modem, than from the modem to the router, and finally from the router to you computer. So that means that the issue can be caused from the following equipment: main cable line, splitter, modem, router, or the Ethernet / wireless card of the PC. Since we know that the connection is being dropped at or before the modem I recommend contacting the internet service provider and demand a service call to swap the modem and check the pole. Your issue can be cause by some thing as simple as a bad splitter in the home or some thing as complicated at an issue at the pole. Most commonly this will turn out to be a bad modem.

I hope that information above has helped is some way.
If possible please rate this solution.

Aug 27, 2010 | Arris SURFboard SB5120 Modem

2 Answers

My Motorola Sb5101 modem will not let me access the internet, the send light constantly flashes and i can't attain any internet connection.

If you have the following lights :
Power light - on
Receive light - flashing
Send light - flashing
Online light - off
PC/Activity - on
Standby - off
Then your Network Access is OFF - modem is successfuly registered but Network Access Control is disabled via DOCSIS configuration file.

Call your internet service provider....

Nov 06, 2009 | Arris SURFboard SB5101 Cable Modem

1 Answer

Zoom X6 internet light constantly red

the internet light, is usually a blinking green, showing that it's seeing the internet signal. The only reason it's red, is cause there's no net signal..double check the phone line going into the back of your router, and change it if you need to.

check your computers warranty here 4 FREE

Mar 16, 2008 | Zoom X6 (5590) DSL Modem (55900003)

1 Answer

LAN connection constantly disconnects

Please check with the Internet provider,there is an bug occouring with the exchange server.

Try to put another modem, if you are having the same problem,then it is the your service provider problem.

If no problem try to check the software setting with the first modem.


Jan 08, 2008 | Siemens SpeedStream Modem (4100) (SS4100)

1 Answer

Activity light is is constantly on.

if the activicty light was off then that would mean you werent connected to the internet thats what kind of activicty it means, its the internet activicty

Dec 31, 2007 | Arris SURFboard SB4200 Modem

1 Answer

Sb 4200 surfboard modem

A firmware update comes from your internet provider. If you tried to update it yourself, it would get sent back to their head end and kicked back, reverting to the previous.

Contact your internet provider.

Dec 11, 2007 | Arris SURFboard SB4220 Modem

2 Answers

Random Disconnect: PCX 1100U

Toshiba 1100 modem are no longer compatible with any service providers anymore. The reason for this is Toshiba quit making cable modems and no longer supports them. Since they no longer support their modems, they don't write firmware to make them DOCSIS 2.0 compatible and since most service providers use 2.0, your DOCSIS 1.1 modem will not function correctly. Actually what is really happening is the 1100 modems cannot correctly decipher the 2.0 and are constantly changing their transmission power levels. You definitely need another modem, and if you are using Cox, ask about their refurbished ones for about 20 bucks.

May 22, 2007 | Toshiba DOCSIS Cable PCX1100 Modem

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