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BeeHev32's profile

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Thursday, May 18th, 2023 3:31 PM

Asus rt-ax82u router with AT&T BGW320-500

When I connect my router to the AT&T Gateway, my speeds are cut in half compared to when I just use the gateway by itself. I’ve already set up the pass through mode to DHCPS-fixed. I made sure that the pass through fixed MAC address is the same as my ASUS router. I also Set 2.4 GHz and 5 GHz Wi-Fi Operation to Off. 

I have intermediate knowledge about this sort of stuff, but I’m by no means an expert. I don’t understand why I’m getting about half the speed with my router. Any help is appreciated! 

Community Support


232.8K Messages

1 year ago

Let's get your internet running faster with your router, @BeeHev32


First we recommend factory resetting your gateway. This will revert your gateway to its default state to get rid of any conflicting settings and leave it in the ideal state to set up 3rd party networking. Please keep in mind, this will remove all custom settings, so we recommend writing down any settings you'd like to keep. 

  1. Press and hold the gateway Reset button for at least 10 seconds. If you let go before 10 seconds, the gateway will reboot, but it won’t reset.
  2. Wait until the gateway restarts and all the status lights are lit. 
  3. See if the Broadband or Service status lights are solid green. If so, the reset worked.

Once this is done, you'll want to set up IP Passthrough again. You can consult our guide to make sure all the settings are correct. 


If this doesn't help, please let us know. We may need to run some tests on your network to determine the cause of your slow speeds.


Raiden, AT&T Community Specialist 


ACE - Expert


35.8K Messages

1 year ago

  • How are you measuring bandwidth with your router in line?
  • What bandwidth do you get?
  • How are you measuring bandwidth without your router in line?
  • What bandwidth do you get?
  • Do you have QoS or any other kind of traffic prioritization turned on in the router?
  • Can you turn that feature off and do a speed test to compare?
  • Do you have AT&T Internet Security turned on?  
  • Try disabling it to see what happens.
  • On the Router or the Gateway, see what the bandwidth is of the negotiated Ethernet link is?  On my ASUS all the port speeds are shown on the Network Map display (in the lower right).
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