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D-Link DSL Modem/Routers => Other DSL modem/routers => Topic started by: Metzas on July 09, 2015, 07:31:16 AM

Title: DSL-2750 B Dns Problems
Post by: Metzas on July 09, 2015, 07:31:16 AM
Greetings! I recently purchased the aforementioned router. Since the beginning however, I've had problems:

Every now and then, more than once a day, I have no connectivity. When I try to connect to the internet, my browser displays the following message: ''DNS_PROBE_FINISHED_NO_INTERNET''. All my devices, including wireless ones are unable to connect, even though the little globe icon on the router is on. Every time i have to repeat the installation process, after resetting the router, and without fail, after a few hours the problem presents itself again.

One other odd thing which occurs from the very beginning is the fact that although after the setup I am able to connect, the installation doesn't think so.

Any help will be appreciated,
Cheers.
Title: Re: DSL-2750 B Dns Problems
Post by: FurryNutz on July 09, 2015, 08:38:36 AM
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.
Title: Re: DSL-2750 B Dns Problems
Post by: arispaliouras on September 11, 2015, 02:58:50 PM
i have exactly the same problems.
With my previous router i didn't have any problems.

Could you help me ?

When the Internet Connection is being lost then i reboot the router and everything works fine for about 1 or 2 hours.

Title: Re: DSL-2750 B Dns Problems
Post by: FurryNutz on September 11, 2015, 03:08:57 PM
Link>Welcome! (http://forums.dlink.com/index.php?topic=48135.0)


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.
Title: Re: DSL-2750 B Dns Problems
Post by: arispaliouras on September 11, 2015, 11:24:31 PM
Hello

i am in Greece.
The firmware version is EU_1.01
Hw Ver: D1

Software Version :      EU_1.01
Release Date :      130311_1922


With my previous modem i had no problems.
I cannot find DNS Relay parameter

Title: Re: DSL-2750 B Dns Problems
Post by: arispaliouras on September 11, 2015, 11:45:11 PM
i do not think the problem is the DNS because when i was troubleshooting it with my provider i gave an ip address of a web site in my browser and it didn't work.
Title: Re: DSL-2750 B Dns Problems
Post by: FurryNutz on September 12, 2015, 02:23:17 PM
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.