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[emayer]

Forgive me -- I know these forums are meant for US products, but I'm at the end of my rope and don't know what else to do.

I received a D-Link DSL G256DG from my ISP here in Israel. I can't find this model or any manuals or help with it on Google, so I'm guessing it's some kind of project between my ISP and D-Link. It's a DSL modem / AC router and was required by the ISP to enable higher DSL speeds. My house is constructed of reinforced concrete, so in order to cover the whole place, I have two or three additional routers deployed where needed. In the past, I had a plain old DSL modem feeding Internet access to an ASUS RTN16 which handled DHCP, and then the other routers (a Netgear and an old D-Link) had DHCP disabled and just served as access points (or occasionally I had them configured to do DHCP on their own reserved section of IP addresses). Once I replaced the plain old modem with the D-Link DSL G256DG modem / router, the other routers on the system could "see" the DSL G256DG, but when I tried accessing the Internet via those other routers, I would get a momentarily normal-speed response, but then after just a few seconds, the speed would dial immediately down to basically zero and I couldn't get any usable connectivity through those secondary routers. Connectivity remains totally normal when connecting directly (wired or wirelessly) to the DSL G256DG. Any help would be much appreciated!
Thanks

[FurryNutz]

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.

You'll need to check with the ISP to see who is supporting the modem officially, sometimes D-Link gives the HW to ISPs and in turn they develop there own FW for it.

Regard your other units working as 2ndary APs, Please review this:
Turning a router into an AP.

[emayer]

Thanks for responding. I'm reading the links you provided. Meanwhile, the hardware version is A1 and the firmware version is 1.00.03 (firmware update is locked on the device -- when I click on firmware update, the interface tells me "Only admin account can access this page!").

[FurryNutz]

Be sure to set 2.4Ghz and 5Ghz channels between all units to different and far apart channels. Modem set to 11/36, Others set to 1 and 6 on 2.4Ghz.

If you can't access the admin account then you'll need see if your ISP allows for that. Some don't.