New Contributor
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3 Messages
how to setup passthrough mode cga4131com
We have a new Comcast business phone and internet account that works well. However, I need to setup IP passthrough mode on the CGA4131COM modem by Technicolor ver 2.3. I disabled the entire firewall as suggested in a Comcast post and reset the modem, but the WAN ip does not passthrough to our router. Does the enable LAN DHCP need to be turned off for passthrough to work? Any suggestions?
CC_Korie
Trusted Forum Contributor
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57 Messages
3 years ago
Good morning, @user_d8d269. LAN DHCP should be disabled for passthrough to work. Please try to disable that, and let me know if it works!
Here is a great link that will walk you through the steps. :)
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user_d8d269
New Contributor
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3 Messages
3 years ago
The link just loops back to your answer. Please repost the link. Many thanks.
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user_d8d269
New Contributor
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3 Messages
3 years ago
I turned off the LAN DHCP and disabled the firewall and rebooted the Technicolor modem. Phones worked, but no passthrough so no internet. Without DHCP couldn't control the modem, so did a factory reset using the reset on the front of the modem. That restored everything to the original state. Do I need to set the WAN ip address (e.g. 24.11.188.169) as the address of our local router? If so, will I need to obtain a static IP to keep the WAN address from changing?
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