Centurylink 1G Fiber Amplifi HD VLAN tagging or bridge mode?

  • Hi all, I have Centurylink fiber service and prior to today I had 100 mbps down and 50 up and I am plugged from my ONT into my Amplifi via Cat 6 and VLAN tagging is on. Now that I have "Gigabit" speed.. should i switch and use bridge mode with their gateway? Or should my current setup be able to handle the new speed? I just have the Amplifi HD unit and no mesh points as my house does not need them. Thanks

  • Use Bridging mode if you want to just keep your CL modem and just have the Amplifi unit act as a Access Point. If you want the Amplifi unit to handle routing and wireless do the following.

    If you do NOT have Prism TV you'll just need to get your PPPoE settings from CL, then using the app configure your router to PPPoE w/ user details etc then enable VLAN with ID of 201. After that point you'll need to reboot your ONT then your Amplifi. Once the Amplifi is up use the LCD to confirm you've received a IP address you should be set.

    I have Prism TV so I only need to do DHCP but have to set the VLAN to 201. Just tested this out last night and works just fine.

  • I have centurylink 100mb fiber. I have the cl set to transparent bridge and let the amplifi hd handle my routing. My question is do i need to set it to vlan? the modem is c1900a and it uses dual bonded vdsl2. I just want to be make sure i have my amplifi set up for the best speeds. I seem to get about 30mb down on the wireless (app). Testing googlefiber.net I get 99.1/9.9; speedtest.net 17.09/10.7 and internet speedtest 56.9/8.5.

    Does ipv6 benefit me? how to set up? tried the vlan and 201 and get (no ip address).

  • I'm encouraged to hear that you were able to get AmpliFi working with CenturyLink Fiber. I just got an AmpliFi kit and am hoping to disable (bridge) or even better remove the C2100T.

    The current CL router config:

    Broadband settings:

    • Wan Tpe: Auto (Wan Ethernet port 5)
    • Transport Mode: Auto (Tagged - VLAN-201)
    • VLAN Parameters (Vlan ID 201)
    • MTU 1500

    WAN Settings :

    • Auto Select (Protocol Selected: IPoE)

    I suppose the other option is simply to disable the built in Wireless and create a new subnet on the CL device and run the AmpliFi gear that way...

  • @joshua-newton I would like to follow up on your experience with CL fiber and PrismTV. I was able get internet service to work easily by removing the Technicolor C2100T and configuring the AmpliFi base using for VLAN-201 but was forced to put their gear back into service and put AmpliFi in bridge mode because the TV service stopped working.

    We had a technician come out and I was told the Prism service required multicast enabled and I did not see any way to get that working without the C2100T upstream. Symptoms are playback will work for about 6 seconds, then freeze when the DVR switches to multicast mode.

    I would love to remove it if you have any tips there.

  • @andrew-morse 😞 Well that's kinda a bummer but figure as much as the Prism TV needs the multicast.
    That said what you can do is get a EdgeRouter from Ubnt and I can work you through the configuration for Prism TV. I had that working for 2 years before I dropped the Prism TV service. Once again what you'd do is have CL come into the ER (EdgeRouter) then configure your Amplifi as a Bridge so it works just as a AP.

  • Sorry to hijack... but I have a reply from @UBNT-Brett a few days ago stating that Amplifi does not support PPPoE/VLAN tagging, yet here it seems that you all have gotten CenturyLink fiber working (sans TV, which I do not have) without the CL modem in between? Which must mean it can handle PPPoE/VLAN tagging?

  • The goal I have is to use the Amplifi Mesh Router but allow the TV's go through the C2100T because when I plug the TV's into the amplifi they stop working. On the cable going to the TV there are some computers and I would like to be able to access the printer that is on the wireless network.

    If I understand correctly. I turn off wireless on the C2100T and put it in bridging mode then plug in the Amplifi router.
    Allowing me to use Amplifi router as the DHCP server so I have all the control and the single SSID.

    Will this still allow me to access the printer on the WLAN from a LAN device?

    Also in going from the C2100T do I plug that into the Blue port on the Amplifi router?

    Thank you

  • @paul-james I may be wrong, but to my knowledge if you enable bridge mode on your C2100T the TV service may not work (Other similar cases required AmpliFi to be in bridge mode)

    If that is not the case, most modem/router combos will disable the LAN ports except port 1 when bridge mode is enabled. This would not work if that was the case. You would need to wire your TV, Computers other devices to a LAN port on AmpliFi or run a switch.

    When AmpliFi is connected to your C2100T, and the C2100T is in bridge mode you would connect an ethernet from the LAN on the modem to the blue WAN port on AmpliFi.

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