Can't Access Router Configuration After Putting Into Bridge Mode

  • I've recently moved and have new internet service, I've been trying to get my Amplifi router to work behind their gateway (unsuccessfully so far, but that's an AT&T problem). One of the steps they wanted me to take when trying to do IP Passthrough (which isn't working, the Amplifi router will not "take" the public IP address) was to put my Amplifi router into bridge mode...

    I've done this, and now I cannot access anything on the router itself. The app won't connect, using amplifi.lan doesn't work, nor does using the IP address of the device ( I've tried manually configuring IP settings to use an address on that subnet, and no luck.

    This is a disaster, how do I get back to the config webpage or get the app to work so I can turn bridge mode OFF?

  • @jayson-knight Turning bridge mode off requires the application. Is your AmpliFi still broadcasting a wireless signal and the app is just failing to connect?
    Try a few of these options and see if you can get the app to connect.

    1. In your phones network settings forget the network completely, then reconnect. Launch the app and select the 3 line menu button in the top left and select Switch AmpliFi at the bottom of the screen (May say Start Wizard)

    2. If you had remote access enabled before enabling bridge mode, disconnect from the wireless network and try to launch the app.

    3. Try using a different mobile device or tablet to access the router settings via the app.

    This is not a normal occurrence so we are facing something unique here that his hindering your ability to access the application.
    Please keep me updated on any progress

  • @ubnt-brett I’ve shelved it for the time being. The bigger problem is that for whatever reasons, I could not get the router to behave as I’ve had it configured before, which is just using the ISP gateway as a conduit that funneled everything to the Amplifi router. Cascading didn’t work (requires public IP’s). IP Passthrough didn’t work, the router would not take the public IP address.

    It’s weird, I had AT&T fibre at my old I’ve moved, still have AT&T but it’s a different router (with a much nicer UI)...I spent almost an hour on the phone w/ AT&T and we just couldn’t get it to work correctly. The gateway model is an Arris BGW210 if anyone is keeping score.

    The problem I was running into is that if an iPhone can’t get internet connectivity through a network, it’ll just fall back to cellular. I tried to manually configure a static IP, and could hit the webpage, but not via the app. I’ll take another crack at it over the weekend, but if I can’t get it to work behind this brand of gateway, not sure what I’m going to do. I know you guys can’t test everything out there, but a search on “BGW210 bridge mode” will bring up pages and pages of frustrated users b/c there is no simple way to put it into bridge mode.

    I’ll keep you posted for sure.

  • @jayson-knight Hi Jayson! You should be able to find AmpliFi using your ISP router UI. The portal will be available at http://<AmpliFi IP address assigned by ISP router>. looks like the ISP router's address (what your phone or laptop would show when connecting to AmpliFi now), not AmpliFi's address. Another reason for failing to open the portal could be that you're not using http specifically. Browser might be defaulting to https, which won't work.

  • Hi @jayson-knight - you might be interested in some of the recent comments at the end of this article comparing AmpliFi with UniFi:

    The article also uses the Arris BGW210 with AT&T

    From the comments:

    i’ll just leave some links in case it’s helpful. this is regarding at&t uverse authentication and bypassing the crappy at&t router (RG).

    this has a good overview of the situation but doesn’t present my favorite solution of the ones i’ve seen:

    here is something of a megathread if you have infinite time on your hands:

    imo the preferred solution for now is to just proxy the auth packets (EAP over LAN / 802.1X) and not have any of your real traffic go through the crappy RG.

    here is probably the best EAP proxy script:

    this gets right to the point and walks you through setting it up on the USG:

    here is a derivative post that might have some hints if you’re stuck on something:

    and here is a thread discussing more of the same. it’s worth reading because they go over how the USG manual configuration presented in the taylorsmith post can be simplified because most of the necessary options are now exposed in the unifi controller GUI in newer versions (like 5.8.x stable), so your manual config file (config.gateway.json) doesn’t need to have much in it. it’s considered best practice to use the GUI as much as possible to prevent config clashes. also, they talk about IPv6 troubleshooting.

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