Question about 3Com (3CR856-95-UK) Firewall

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How do I connect my cable/DSL line to this device?

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The 3Com® OfficeConnect® Cable/DSL Gateway does not have an internal cable or DSL modem. The gateway router is designed to connect to the Ethernet output from your cable or DSL modem. An Ethernet cable is supplied with the product for this purpose.

Posted on Feb 16, 2006

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Theres no dsl light on the router, its a d link dsl2640b. so i need to know if its broke, the power light is on and the status light but no dsl light and no internet light on router, the pc is showing...


The flashing DSL light means that the modem isn't seeing the DSL signal on the phone line it's connected to. This might be due to modem failure, but it might also indicate a phone line problem. The most common trouble I run across is an unfiltered device connected on the line that interferes with the DSL signal. Other than the modem, all devices (phones, fax machines, security systems, etc.) need to be connected to the line through a filter. Check to be sure something hasn't been connected without a filter. Sometimes a phone gets moved or a new phone is added that gets plugged in to a handy jack without being filtered.

If you can, try connecting another modem to the line. You may be able to borrow one, or find one at a resale shop. I see them quite often for only a couple of dollars, leftover from people changing to FiOS or cable service. This can help determine if the modem is responsible.

One final possibility: your DSL service has been cut off. I've had two cases where loss of DSL was a phone company issue that they needed to fix at their office. (One following some wiring work done in apartment building, the other when service was mistakenly disconnected from the wrong customer.)

This kind of trouble can be a headache to solve, but it can be solved. Good luck and thanks for using Fixya!

May 21, 2011 | D-Link ADSL2/2+ Modem/Wireless Router...

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How to Check main causes of Hissing Noise on phone line ?



The main causes of Hissing Noise on phone line

* Weather:
Precipitation can leak into phone lines and cause disruptions. Lightning, even at a distance, can damage the connection.
Checked the connections the cable and the Sockets
If you have the Test socket or the First Socket where the Telephone is is entering .. check the Connections there

* Electrical interference:
Check the Power lines,
Check radio or television transmitters, transformers and other electronic devices may causing noise on the phone line.

* Other phone devices:
Check for the Connection to the FAX check by unpluging the FAX Machine or answering machines,
Disconnect the other phones and line splitters --
Disconnect the Splitters or devices that allow two phones to fit on one phone jack -- can cause phone line noise.

* DSL services:
The high-frequency signals coming from DSL (digital subscriber line) devices sharing the phone line can create problems for other technology connected to the line.

***Note : high-frequency signals coming from DSL helps for FAST Internet Connection speed which sometime cause the problem to the Phone or Voice signals for this need to contact to ISP to check the Voice margin .. that may effect your internet Speed

IF the above wont work..

You can try keeping the device near Heater .. it could be the Moisture which might causing this issue
or
Show the Device to the Service provider to repair it

on Jan 22, 2010 | Cell Phones

1 Answer

I have a second line for dial up and would like to switch over to dsl through my cable company to save some money can I drop my second line (dial up) and go to cable without any problems. I pay MSN direct...


DSL connection works on the same line provided by company who provides DSL. If dialup line is not provided by DSL company, you can drop dialup line and contact DSL company for DSL connection. If dialup line is provided by DSL company, migrate your internet plan from dialup to DSL by contacting DSL company.

May 30, 2010 | Computers & Internet

1 Answer

Constant static and noise on the cordless, have not had this problem with other phones in the same location. I have tried the frequency scan- no difference. The noise is so bad the cordless cannot be used.


The main causes of Hissing Noise on phone line

* Weather:
Precipitation can leak into phone lines and cause disruptions. Lightning, even at a distance, can damage the connection.
Checked the connections the cable and the Sockets
If you have the Test socket or the First Socket where the Telephone is is entering .. check the Connections there

* Electrical interference:
Check the Power lines,
Check radio or television transmitters, transformers and other electronic devices may causing noise on the phone line.

* Other phone devices:
Check for the Connection to the FAX check by unpluging the FAX Machine or answering machines,
Disconnect the other phones and line splitters --
Disconnect the Splitters or devices that allow two phones to fit on one phone jack -- can cause phone line noise.

* DSL services:
The high-frequency signals coming from DSL (digital subscriber line) devices sharing the phone line can create problems for other technology connected to the line.
Note : high-frequency signals coming from DSL helps for FAST Internet Connection speed which sometime cause the problem to the Phone or Voice signals for this need to contact to ISP to check the Voice margin .. that may effect your internet Speed

IF the above wont work..

You can try keeping the device near Heater .. it could be the Moisture which might causing this issue
or
Show the Device to the Service provider to repair it






Jan 22, 2010 | GE Telephone pr521w

2 Answers

Macbook and I-touch loses wireless connection with versalink dsl


It sounds like the dsl modem and the gateway should be sync'd in the following way:
1. Turn everything off and disconnect the dsl for a bit. Make sure even the wifi stuff is off.
2. Turn on your gateway and let it cyce up.
3. Plug the dsl ethernet cable into your gateway, and to your phone line, then plug in the power to the dsl.
This will cause the dsl modem to "find" the gateway IP address and connect.
4. Turn everything else back on.
This should eliminate all the drops...
Let me knowhow it goes...
K

Jun 19, 2009 | Apple MacBook 13"White /2.0Ghz Intel Core2...

1 Answer

My DSL constantly loses sync after it has been on for awhile


If you have telephone devices (e.g phones, fax) sharing with your DSL line, be sure it has DSL filter on devices so it won't interfere with the internet connection. If every devices is properly filtered, disconnect all devices sharing with your DSL line and leave the modem connected to the phone socket with 3 meters phone cable and observe the connection. If the connection becomes stable, connect each devices so you will identify of these devices is using a faulty filter.

Jun 07, 2009 | Computers & Internet

2 Answers

Yes i want to find out if a cable modem will work with your dsl phone internet service?


No.

A cable-modem connects with a coax-cable to the cable-company's network, but a DSL-modem connects with telephone-cable to the telephone-company's network.

Jan 27, 2009 | AT&T High Speed DSL Modem

1 Answer

Lexmark x6150 unalbe to fax phone line is active using dsl


Hey Tony - Did you recently hook this up to the DSL for the first time? This unit is supposedly not able to work with a DSL line.

The fax modem in your AIO is an analog device and cannot be used on an ISDN, DSL, or PBX digital phone service. However, you can connect certain devices to your AIO that let you use the fax function in addition to these digital phone services.

To connect without an unsupported line:
Connect an active telephone cable from the AIO to the telephone wall jack.

To connect with an unsupported line:
If you use an ISDN phone service, you can connect to an analog telephone port (an R-interface port) on an ISDN terminal adapter.
For more help and to request an R-interface port, contact the ISDN provider.
If you use a DSL (Digital Subscriber Line) phone service, you can connect to a DSL filter or router that will allow for some analog (rather than digital) use.
If you use a PBX phone service, you can install an analog phone line for a fax machine.

If this was working on the DSL let me know. I don't know the location but obviously a separate phone jack is the easiest. Let me know. If this helps you fix it you can rate this as fixed. If you are just going to rate this as helpful I'd rather you please not rate it and just add a comment and say thanks for the info.
If you need more help just add a comment and I'll be glad to assist you further. Thanks.

Jeff

May 09, 2008 | Computers & Internet

1 Answer

Internet connection not working


I have ATT DSL too.

Mine came with a Seimens SpeedStream 4100 ethernet ADSL modem. Did yours?
If not what is the manufacturer and model of the unit ATT sent?

Is it hooked up and working? If so continue.

IF you have a Seimens SpeedStream 4100 --
  • It has 3 connection on the back
  • one for power
  • one for a phone line (gray in my case)
  • with a separate gray cable
  • this is connected to the non phone side of a splitter
  • one for an ethernet (yellow in my case)
  • with a separete yellow cable
  • this may be loose to connect to your computer OR
  • connected to another device
  • IF connected to another device what is the manufacturers name and model for that device.
If ATT supplied a device other than a Seimens SpeedStream 4100
  • Is there anything other than a power adapter and a phone line attached to that unit now?
  • What is the manufacturers name and model for that device.
In terms of your ATT DSL service
  • How many devices do you intend to connect? Computers, game consoles, etc
  • How many connected by wire, if you know?
  • How many connected by wireless, if you know?
To you know if your DV4000 computer
  • has an ethernet connector?
  • has a wireless network adapter built-in?
  • IF not can can you look on the label on the bottom of your computer and tell me the full model number is. Please use this Model Link to help figure that out.
Do you have any devices such as a router, wireless router, wireless access point either already connected or to connect to your ATT DSL service?
Please identify the manufacturers name and model number for each device and whether or not it is connected and working.

With all the above I will know where to begin in the process of attaching your new computer to your ATT DSL service. Please add a comment to this issue with the necessary information -- I know it will be long. However you are the hands and eyes of this team and my questions are to get you to tell me things I would know if I was present and installing these devices.

Dec 16, 2007 | HP Pavilion dv4000 Notebook

3 Answers

2701HG-B


Hi. I will not repeat the check the phone line and resetting comments as it's now redundant.

I always have a spare modem as a line tester.

I've seen several 2700HG-B 2wire modem/routers burn out and every single time it's the DSL signal or modem portion that is burnt out. Even if you have two or three phone line surge protectors these 2700s are prone to shorting out unless you have a direct signal splitter DSL setup.

Here are a few things you can try to confirm if the 2700 is no longer functional on the DSL signal light problem.

#1: Turn on (plug in) your 2700 without the phone line plugged in and wait. If the DSL starts flashing red then there is a hardware problem in the modem/router.

#2: Plug the phone line into the 2700 while the dsl light is flashing red. It might take about 3 seconds however it should start to flash green and let it flash for about (usually) three minutes. If it turns red then the 2700 is indeed damaged.

#3: If you can enter into your modem using the http://2wire... and check the connection status. The first two status lines should read attempting to connect and no connection.


Nov 01, 2007 | 2wire 2700HG-B Router (2700HGB)

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