Question about D-Link DFM 562E (dfm-562e) Modem

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D-Link adls modem - interference with telephone

I had been using D-Link adsl modem for about a year. Suddenly I started to have interference with my telophone from last week. I changed filters and tried again - but no success. If I disconnect the modem, telephone works well OR if I disconnect telephone, internet works well. The problem is when I have to use both internet and telephone at once. The person on the other side hears me well, but I have a lot of interference in the form of humming although I still can hear the other person with difficulty. Can some one help me with their superior idea please??

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Re: D-Link adls modem - interference with telephone

Yea this type of happen with most of DSL users! This is due to weak signal telephone line. You should only have 1 phone and 1 internet connection. You should remove all other telephones in the home. Then it will work fine. If you only have 1 phone then you must call the phone service person who will check that status of your wire. Might be your wire is old so it creates a problem. Then replace it the you'r done.

Posted on Dec 11, 2007

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What cable do i need?

You should give more detailed information!
If I understand correctly, you have an ADSL over a normal landline with a splitter between the phone and the modem. If you now want to move the modem you need a simple telephone-cable with at least two wires.

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I'm facing this low net speed problem from the time this red light started to blink in my reliance net connect+ modem. How can i rectify this problem?

If you are using the wireless modem you may have interference in your area. Try moving away from Television or other wireless devises in the home. Could be interference from a neighbors wireless telephone, as some wireless home phones use a 2.4 GhZ signal that will interfere with a wireless modem.

Sep 25, 2011 | Modems

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Cannot connect to my Internet. On my 2Wire modem at home, The Power LED light is solid green, the Ethernet LED light is green, the DSL LED light is continually flashing, and there is NO Internet LED...

With the DSL light always flashing, it means that either the ADSL signal (synchronization) does not reach your modem, or your modem cannot 'read' the signal.

You need to determine if the problem is from one of the following places :
  • outside of your house (your land line or ISP equipment) or from the modem;
  • your telephone-cable inside your house or
  • one of your equipment;

Try the following manipulations to determine from where the default comes :

  1. Determine if the problem is in your house or on the land line
    • Unplug each and every equipment which is connected to your telephonic installation (Fax, phones, answering machines etc);
    • Using the shortest telephone cable (RJ11) you possess, plug only your modem to the main telephone jack of your house.
    • If the DSL LED still flashes continuously, the problem is somewhere between your ISP's equipment and your house. You should call them and expose the situation. At this stage, you can't do much else.

  2. Determine if the problem is in your house installation
    If the DSL LED lights up when it is plugged to the main telephone jack, then it is either one of your equipment which is at fault, or the house installation. To pinpoint the problem, do the following :
    • With all the other equipment still unplugged, try the modem on all the other telephone jacks you have around the house.
    • If the DSL flashes continuously on one of the jacks, you will have found the source of your miseries. Depending on your ISP's terms and conditions, you will either have to call them of call for the services of a third-party technician to solve the problem.
    • If the DSL lights up correctly on all the telephone jacks, then your house telephone installation is good. Proceed to the next series of tests.

  3. Determine which equipment is at fault
    • Plus your modem to one telephone jack and wait for the DSL line to light solid.
    • Use a splitter (ADSL filter) to plug the equipments you possess (telephone, fax etc) one by one. Verify each time if the DSL LED is still lit or flashes continuously.
    • If one of the equipment causes the DSL LED to flash, it is that equipment which causes your problem.
    • If every equipment causes the DSL LED to flash, the it is the splitter (ADSL filter) which is causing the problem. You can confirm this hypothesis by testing each and every ADSL filter you have in your possession.
    • Replace any faulty equipment and you should have eliminated the problem.
If nothing of this solves your problem, you won't have any choice but call you ISP. Don't hesitate to tell them all tests you will have done.

May I also make some recommendations :
  1. Use a power surge protector (not a UPS though) to plug your modem to the electric outlet BUT plug it directly to the telephone jack;
  2. Make sure your modem is plugged in as far as possible from UPS, television, etc.;
  3. If possible, don't plug the modem in the same electric outlet as other equipments;
  4. Don't use any telephone extension cable to plug your modem to the telephone jack.

Hope this helps you. Let me know what happens next.

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Does Your DSL filter work for any analog modem attempting to send a fax (via fax software) using a DSL phone line?

Hello, Thanks for allowing me to help.

Sending a FAx over a telephone using adsl can be tricky, using a filter will help but you might want to make sure your baud rates are low, TRY 9600 baud, if you get any higher then that your filter might not filter it out and thus confusing the adsl connection.

I know mine works fine, make sure your fax is plugged into the TELEPHONE side of the filter!

I use 9600kbps , I do not recommend going any higher then that.

If that does not work you going to need to try another filter, last but not least call the telephone company if you are loosing connection.

Thanks for the questions, I hope my answer was Very Helpful.


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A flashing ADSL light on the router means its not getting constant broadband signals. Make sure it is connected to the adsl filter without any extensions and the filter should be directly connect to the main phone socket and not to an extension socket. Also check if the phone socket has 1 or more than 1 ports on it. If it has two port its most likely a SSFP socket which does not require a filter as it is inbuit.If all the connections are fine try changing da filter.

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Zoom ADSL X6 Modem "Link" Light Suddenly Blinks Continuously

the modem may have gone faulty so if your isp provided it ask them to replace it if the modem is in warranty period and if your isp provides internet connection through the phone line then first please try plugging the modem on main socket in with an adsl filter plugged in and if this is not the case then problem is definately the line through which the broadband signal come to your place which is suppose to be sorted out by your isp.

Mar 12, 2008 | Zoom X6 (5590) DSL Modem (55900003)

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presuming that the router moved with you the telephone line socket could be too far away from the BT socket or is not correctly wired. if you have not moved the router then you need to buy a booster

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D link modem

try to upgrade the latest firmware for the router and that would fix this problem, check if this problem is with both wired and wireless computers, if not with the wired..only wireless has problems, check if you have any other wireless device operating in the same frequency of the router..if s, turn off other devices and check b.cos that me interfere your w/ls connection, if wired is having the same problem, connect modem straight to the pc and observe the connection, so that you can isolate problem.. Your router is not synchronized with the line. You should power cycle your router (i.e)disconnect power cable from the router waith for 30 seconds and then reconnect, check if the dsl cable is connected properly to the router, if yes remove it once and the reconnect it, this should fix the problem. upgrade the latest firmware version for your router .Are there any electrical devices near the router that are only switched on at that time of day and then switched off again in the morning. What i'm thinking is that you are experiencing REI or Repetitive Electronic Interference. This is caused by EMP emmisions form devices nearby. Have you had anything fitted recently that may be hardwired into you master socket, this will bypass your filter and cause interference on the line. The only other thing I can think of is that there maybe some engineering works going on at the exchange or on the line.

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