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Author Topic: DLink DSL-2750U Software  (Read 4380 times)

Raneesh R

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DLink DSL-2750U Software
« on: October 01, 2017, 08:46:32 AM »

Hi
Please anyone help me with my modem as it keeps getting slow. Usually power , adsl, internet , wifi light will glow, after sometime wifi and interenet stops glowing and then after resetting the modem through manual switch it comes back to normal (Glowing 4 lights ) after sometime it keeps wifi and internet light stops glowing.... it keeps on happening again .I don't know whether its laptop or router problem Please help with it . I use Widows 10.
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FurryNutz

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Re: DLink DSL-2750U Software
« Reply #1 on: October 01, 2017, 09:59:42 AM »

Link>Welcome!

  • What Hardware version is your modem? Look at the sticker under modem.
  • Link>What Firmware version is currently loaded? Found on the modems web page under status.
  • What region are you located?

I recommend that you have your ISP check the cabling going to the ISP modem, check signal levels going to the ISP modem. For DSL or Fiber service lines, ensure that the ISP is using good working phone or cable lines to the DSL modem and that the phone lines are filtered correctly. For cable Internet, RG-6 coaxial cable is needed, not RG-59. Check for t.v. line splitters and remove them as they can introduce noise on the line and lower the signal going to the ISP modem. I recommend having the ISP service physically check the lines going from the out side to the ISP modem. Connecting to the ISP modem could result in a false positive as the signal to the modem could be just enough to that point then adding on a router, could see problems. The router operation is dependent upon getting good data flow from the ISP modem and the modem is dependent upon getting good signal from the ISP Service.

Wireless Configurations
Links>Wireless Installation Considerations and Managing Signal Congestion and Good Neighbour Policy

  • What wireless modes are you using?
  • 2.4Ghz Routers only: Try single mode G or N or mixed G and N?
  • Channel Width set for Auto 20/40Mhz or try 20Mhz only.
  • Try setting a manual Channel to a open or unused channel. 1, 6 or 11. 11 for single mode N if the channel is clear. 13 for EU regions. Try channel 48 or 149 on 5Ghz.
  • What security mode are you using? Preferred security is WPA-Personal. WPA2/AES Only. Some WiFi adapters don't support AES, so you might want to try TPIK only or Auto TPIK and AES.
  • What wireless devices do you have connected?
  • Ensure any devices with WiFi adapter drivers are updated.
  • Any 2.4Ghz or 5Ghz cordless house phones or WiFi APs near by that maybe causing interferences?
  • Any other WiFi routers in the area that maybe causing interferences? Link> Use a WiFi Scanner to find out. How many?
  • If you have any of these options, Try turning OFF or ON Short GI, WLAN Partition, Extra Wireless Protection and HT 20/40 Co-existence if you have it. Also testing with HT20/40Mhz Co-existence enabled will impact results as well. I prefer to use this option OFF. Recommended settings are default. Under Advanced/Advanced Wireless.

Router Placement
Forum User - "Well I feel really dumb. After moving the router away from other electronic devices my speeds are back to normal. Just a heads up for anyone experiencing slow speeds, you might want to move it away from other electronics and see if that helps."
3-6' feet minimum safe distance between devices.
Placement on main level floor and central in the building and WELL ventilated is preferred. Not in basements or closets as building materials, or near by electronics devices could interfere or hinder good signal propagation.
http://www.smallnetbuilder.com/wireless/wireless-basics/31083-smallnetbuilders-wireless-faq-the-essentials
http://www.foxnews.com/tech/2015/10/27/how-to-get-stronger-wi-fi-signal.html?icid=maing-grid7|main5|dl31|sec1_lnk3%26pLid%3D1839803170
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Cable:200mb/10Mb>NetGear C7800>DIR-882>DGS-1100>HP 24pt Gb Switch. COVR-3902/2202/1203,DIR-2680,890L,882,880L,868L,DNR-202L,DNS-345x2,DCS-933L,936L and 960L.
Go Here>Router Troubleshooting

Raneesh R

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Re: DLink DSL-2750U Software
« Reply #2 on: October 01, 2017, 10:10:12 AM »

Product Name : D link DSL-2750U
Serial No : T0061H1013678
Model Name
DSL-2750U
Firmware Version
IN_R_01.00.05
Region: India(Southern Part)
I have checked the cables and router configuration and other things too . I have placed the router away from other electronic devices. All are fine it seems.
« Last Edit: October 01, 2017, 10:16:05 AM by Raneesh R »
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Anil Paul Bbby

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Re: DLink DSL-2750U Software
« Reply #3 on: October 15, 2017, 10:00:34 AM »

I've same problem, yesterday i brougt new dsl-2750u ADSL router for my friend. some time after configuring getting error, power and link led glowing but no internet LAN & WiFi( i can use after resetting, but same problem coming some time after). first I thought it's ISP  problem, but i can use another d-link adsl router without any problems. I've same model firmware and region raneesh mentioned above 
« Last Edit: October 15, 2017, 10:03:04 AM by anilpaulbaby »
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FurryNutz

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Re: DLink DSL-2750U Software
« Reply #4 on: October 15, 2017, 10:05:36 AM »

I recommend that you phone contact your regional D-Link support office and ask for help and information regarding this. We find that phone contact has better immediate results over using email.
Let us know how it goes please.
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Cable:200mb/10Mb>NetGear C7800>DIR-882>DGS-1100>HP 24pt Gb Switch. COVR-3902/2202/1203,DIR-2680,890L,882,880L,868L,DNR-202L,DNS-345x2,DCS-933L,936L and 960L.
Go Here>Router Troubleshooting

Anil Paul Bbby

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Re: DLink DSL-2750U Software
« Reply #5 on: October 17, 2017, 08:27:44 AM »

i got fixed, the problem was related firmware. company installed firmware having some bug, they update firmware
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FurryNutz

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Re: DLink DSL-2750U Software
« Reply #6 on: October 17, 2017, 09:25:35 AM »

Did you get this from your regional D-Link office?

i got fixed, the problem was related firmware. company installed firmware having some bug, they update firmware
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Cable:200mb/10Mb>NetGear C7800>DIR-882>DGS-1100>HP 24pt Gb Switch. COVR-3902/2202/1203,DIR-2680,890L,882,880L,868L,DNR-202L,DNS-345x2,DCS-933L,936L and 960L.
Go Here>Router Troubleshooting