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Xfinity X5 DHCP Issue

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Contributor

Xfinity X5 DHCP Issue

I have my Xfinity X5 gateway dishing out IP's

Range 10.0.1.5 to 1.0.1.25

 

Once in a while I get a DHCP device that will get 10.1.1.5

It will partially work (dont understand)

I can release and renew and it gets the same IP

I can forget the Wifi and reboot and it gets the same IP

 

I then resort to rebooting the X5 gateway and the device connects and grabs a correct DHCP IP 10.0.1.#

 

Has anyone else had similar issues and found a solution?

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Expert

Re: Xfinity X5 DHCP Issue

Having an issue actually grasping onto what your issue actually is. Why need a specific IP Range as long as everything is working fine in terms of using the internet?

If addresses are being assigned that are outside the range the gateway should be assigning, then I’d check your LAN settings such as the Subnet Mask, the Beginning and End IP Addresses.

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Contributor

Re: Xfinity X5 DHCP Issue

Thanks for responding fast

 

It sometimes issues a        10.1.1.#

My range is in this format 10.0.1.#

 

A reboot of the gateway and it will then issue a 10.0.1.#

 

I can sometimes get partially to sites such as google

But if I try to get mail it will fail when it has 10.1.1.#

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Expert

Re: Xfinity X5 DHCP Issue

Ok. I would make sure your gateway is set to the following, esepcially the subnet mask and the gateway IP:

LAN SettingsLAN Settings

If it is already that way with your desired range, then I would open that range to 10.0.1.2 through 10.0.1.253 and see how that goes.

 

If it still does not work, then it is probably a firmware issue, then there would only be really a couple of ways to rectify if that is the case:

 

  1. Open the subnet mask range to 255.0.0.0
  2. Go back to the all default LAN settings if able to

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!
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Contributor

Re: Xfinity X5 DHCP Issue

Thanks

DHCP.PNG

I will expererment with your other suggestions