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D-Link DSL Modem/Routers => Other DSL modem/routers => Topic started by: hossam_arafa on March 25, 2016, 12:21:12 PM

Title: Problem with DSL-2740U
Post by: hossam_arafa on March 25, 2016, 12:21:12 PM

I recently bought D-Link DSL-2740U, When using any device through Wi-Fi router works Greatly, but if use of any device on LAN Port the Internet LED Changing to Continous red and the internet lost, I tried to return the router to factory settings, but still the problem exists, Please help me

Thanks in Advance

Title: Re: Problem with DSL-2740U
Post by: FurryNutz on March 25, 2016, 12:31:23 PM

Link>Welcome! (http://forums.dlink.com/index.php?topic=48135.0)

• What Hardware version is your modem? Look at the sticker under modem.
• Link>What Firmware (http://forums.dlink.com/index.php?topic=47512.0) version is currently loaded? Found on the modems web page under status.
• What region are you located?
• Check cable between Modem and LAN wired devices, swap out to be sure. Link> Cat6 is recommended. (http://en.wikipedia.org/wiki/CAT6)
• Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values (http://forums.dlink.com/index.php?topic=53008.0)
• Setup DHCP (http://forums.dlink.com/index.php?topic=58017.0) reserved IP addresses for all devices ON the router. Setup/Networking. This ensures each devices gets its own IP address when turned on and connected, eliminates IP address conflicts and helps in troubleshooting and maintain consistency for applications that need to connect as well as mapped drives.
• Ensure devices are set to auto obtain an IP address.

PC 3rd Party Security Software Configurations

• Turn off all anti virus and firewall programs on PC while testing. 3rd party firewalls are not generally needed when using routers as they are effective on blocking malicious inbound traffic.
• Turn off all devices accept for one wired LAN PC while testing.
• Disable any downloading client software managers, i.e. Torrents or similar.

Title: Re: Problem with DSL-2740U
Post by: hossam_arafa on March 25, 2016, 12:40:25 PM

Hardware Version : V1
Firmware Version: ME_1.02
I use Cat6 Cable
My region: The Middle East, Egypt
I tried DHCP and the problem not solve

Title: Re: Problem with DSL-2740U
Post by: FurryNutz on March 25, 2016, 02:28:15 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.