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Topic: Need support for DLink DSL 2750B - See details!

The content of this topic has been archived on 6 May 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

Hi there,

I'm working with this model described above and i really need some support to it. I searched the whole forum and the only topic was about DSL 2750U2750B (but still with no success). I'm disposed to pay for this kind of job (if necessary). Please help me!

Thank you so much.

Hi
have you found a solution? I've seen that 2740B has the same chipset but I'm not brave enough to try flashing... did you?

Thanks
R

Hello,

No success until now. I bought more of this model and I will try some esperiments soon. I'll update this thread as soon as possible.

Hi,
I have tried upgrading 2750B (HW ver. B1) with OpenWrt, using firmware openwrt-DSL274XB-F1-EU-squashfs-cfe since 2740/F1 has same chip and same network interface (apparently)

In fact, router starts up but it only sees one interface (eth0), no WLAN, and, as it's written in 2740B page, there seems no way to configure VLANs - I tried anyway to define them but with no luck.

Has anyone been able to do something more? a router with one interface is pretty useless... :-(

Thanks
R

Hi
does it support internal DSL modem as well?

Thanks
R

@rickyc

As with all BCM63XX devices, there is no support for the integrated DSL modem.

There is a difference in Soc for this router DSL-2750B
rev D1: Soc is BCM6301 the firmware will work for it:
https://downloads.openwrt.org/snapshots … fs-cfe.bin

rev B1: Soc is BCM6328 the previous firmware will brick it! you will have to restore it using Serial and TFTP, this rev. is already supported: https://wiki.openwrt.org/toh/d-link/dsl-2740b
but without usb support, more info here: https://forum.openwrt.org/viewtopic.php?id=61073

(Last edited by ahmed7 on 22 Nov 2015, 19:19)

hi guy,

I wish flash firmware posted by ahmed7. I tried with OEM method, but router give me message: "firmware version incorrect".
Is it possible flash it using tftp? which IP address I must set on my PC?

thanks in advance for your help

You need to flash it using CFE:

    * Unplug the power source
    * Press the RESET button at the router, don't release it yet!
    * Plug the power source
    * Wait some seconds
    * Release the RESET button
    * Browse to http://192.168.1.1
    * Send the new firmware and wait some minutes until the firmware upgrade finish.

https://wiki.openwrt.org/doc/techref/bo … cm63xx_cfe

thanks for very fast answer.

I follow your istructions, but the router don't answer to address  http://192.168.1.1. After some time the PC have a strange IP address without default gateway.

are you able to understand what is wrong?

You need to configure Static IP for your connection with the router through Ethernet

thanks ahmed7.

Now I'm able to install fw.

I installed fw but the router doesn't work. I think the fw that I used is different from the version you tested. I downloaded a version with date 7 february 2016.....you post success results in November.....

Probably I have to wait an official release.

What router do you have? D1 or B1?

I've got D1

I have DSL-2750B D1 and i just tested to install openwrt-brcm63xx-generic-DSL275XB-D1-squashfs-cfe.bin
from emergency shell.

I can communicate with it on 192.168.1.1/ssh but nothing else seems to work. Or does anyone know how to get luci and webserver to work ??

(Last edited by Grefwenius on 20 Mar 2016, 15:14)

hello, i have DSL-2750B D1 EU version and i managed to flash successfully LEDE stable on this. I have troubles with usb, get corruption on extroot usb pen (ext4) and inconsistent usb support on external/usb wifi . Tested also with a d-link powered usb 2 hub, same issues. any help would be appreciated.

After flashing the router connect with telnet to 192.168.1.1, execute vi /etc/config/network, change the ip address 192.168.1.1 to another of your subnet (example 192.168.1.10), add to file option gateway 192.168.1.1 (your main router ip), add  option dns 192.168.1.1 and reboot.
Connect to the new ip, type in terminal opkg update and opkg install luci, open web browser pointing the new ip.
For wireless driver type opkg install kmod-ath9k.
Very simple.
I have the 2740B f1, it work very well with openwrt 12.09. Rock solid, on line from december without errror. With Chaos Calmer wifi disconnect random without reconnect (driver problem i think)

NB Editor vi, key i for insert test, esc after changes, :wq for saving

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