Hello!
Bottom line up front: I bought a new router to use with my now-bridged Comcast gateway, but I can't connect to the internet. Using an ethernet cable direct from the gateway to the computer works flawlessly.
Based on recommendations from AnandTech Networking, I purchased an ASUS RT-AC66U router to replace the router functions of my Comcast-branded Cisco XB3 gateway. I called Comcast and they put the modem into bridge mode. I can successfully connect to the internet using an ethernet cable direct from the gateway to the computer.
I cannot, however, get my new router to pick up an IP address using DHCP. The tier-1 and tier-2 Comcast representatives assured me that the problem was not on their end and this was definitely a problem with my router. So I grabbed two other working routers, and neither are functioning with the current setup.
Any ideas?
RESOLVED :
After spending 1.5 hours with Comcast Tier-1 and Tier-2 support last night, they concluded that it was an equipment issue. I called this morning, and a Tier-1 helpdesk'er resolved the issue in 15 minutes. With my Comcast XB3 (Cisco DPC3939), they had to manually disable both of the wifi networks that the gateway was broadcasting. As soon as she did that, my routers were able to grab an IP using DHCP within seconds. Thanks for everybody's assistance last night.
Bottom line up front: I bought a new router to use with my now-bridged Comcast gateway, but I can't connect to the internet. Using an ethernet cable direct from the gateway to the computer works flawlessly.
Based on recommendations from AnandTech Networking, I purchased an ASUS RT-AC66U router to replace the router functions of my Comcast-branded Cisco XB3 gateway. I called Comcast and they put the modem into bridge mode. I can successfully connect to the internet using an ethernet cable direct from the gateway to the computer.
I cannot, however, get my new router to pick up an IP address using DHCP. The tier-1 and tier-2 Comcast representatives assured me that the problem was not on their end and this was definitely a problem with my router. So I grabbed two other working routers, and neither are functioning with the current setup.
Any ideas?
RESOLVED :
After spending 1.5 hours with Comcast Tier-1 and Tier-2 support last night, they concluded that it was an equipment issue. I called this morning, and a Tier-1 helpdesk'er resolved the issue in 15 minutes. With my Comcast XB3 (Cisco DPC3939), they had to manually disable both of the wifi networks that the gateway was broadcasting. As soon as she did that, my routers were able to grab an IP using DHCP within seconds. Thanks for everybody's assistance last night.
Last edited:
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