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Author Topic: Someone knowledgeable about AT&T BGW320 router?  (Read 156 times)

ggeorgiev

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Someone knowledgeable about AT&T BGW320 router?
« on: April 30, 2025, 12:21:31 AM »

Hello,

I got few BGW320-505 routers and I wonder if I can use those. They have a configuration password / screen, but this is a limited configuration which cannot change the broadband source or configure the telephone lines. There is probably a second level configuration access to fully configure the router.

Else, the router seems decent - supports 160Mhz channels on the 5Ghz range, has one 5Gb/s ethernet port + 3 1Gb, can take gpon or 10gpon sfp, has wan ethernet port.

The web menu permits to change the wifi name, but pretty much nothing else. I cannot make it work via wan ethernet port for example.

So, someone to have an idea of how to get a privileged access for fully managing it?

Thanks, George.
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ggeorgiev

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  • Posts: 25
Re: Someone knowledgeable about AT&T BGW320 router?
« Reply #1 on: May 03, 2025, 06:41:17 PM »

Hello,

Looks router cannot be used via any of it's wan interfaces - ethernet or sfp/sfp+ one. The sfp stick that comes with looks to be pretty standard on 1270/1310 nm, and the gpon OLT makes the pon connection and sees the mac address of the stick. Good up to here, however as the router does not communicate over the pon link. I assume the router is set with a vlan, so ethernet frames are not understood by the gpon. Will try to find this out, but if there is a vlan tag as I assume, I cannot use the device as a router.

The good news is that if I connect the router via a pon media converter (those are for $8 from China and work just perfect) to one of the lan ports, disable the dhcp on the BGW router (thanks AT&T, this is possible!), and enable the dhcp on the pon box, the router becomes a 4 port switch with an excellent wifi attached. So, the pon box distributes the dhcp configuration, and the BGW320 becomes a switch with wifi. Pretty useful, looks to work well.

Just to note that my telephone was able to show 2401 Mb/s over-the -air wifi connection - pretty decent.
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