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New Contributor


12 Messages

Tuesday, June 28th, 2022 9:13 PM


add static route to TEC CGA4131COM

I need users connected to our mesh network WiFi (Deco S4) to be able to print to a copier connected via ethernet to our Comcast gateway (TEC CGA4131COM). No matter how I enter the information in the Static Routing page on the TEC CGA4131COM, I receive the error, "Failed, please try again later. Message: Gateway IP must be reachable. Netmask must match route address."


WiFi network =

WiFi network mask =

Comcast network =

Comcast network mask =

Comcast gateway IP =

Static IP of device needing to access copier =

Static IP of copier =

Static IP of Deco S4 =

So, if I enter the destination IP of and the network mask of and the gateway IP of everything should work, right?



39 Messages

1 year ago

Thank you for reaching out @user_3e3d9d. I am sorry to hear you have had trouble setting this up. I have a wonderful article that will walk you through the process You will want to scroll down to the bottom of the page and use the static routing information. Based on what I have read, the use of should only be used when setting up a dynamic IP address and not a static. It looks like you must have the subnet mask of the destination IP address. Everything else appears to be correct. Our team will be on standby to continue helping if you need further assistance. I am sure working together we will get to the bottom of this. 

New Contributor


12 Messages

1 year ago

Thanks for the reply, Anna. If I'm understanding you correctly, the destination IP should be set to the device needing access to the copier,, using the network mask of, correct? The article you referenced is the one I've been using, and the static routing section is quite vague and doesn't use the same nomenclature as the static routing page on the gateway, hence my questions.

Recognized Contributor


17 Messages

Hmm! I understand your concern there! Just to confirm is that the subnetmask for the destination IP as well?  These would be the steps to follow here. 


Create a static routing rule

  1. Enter a Name for the router that will make the route easier to remember (this has no effect on the static routing function).
  2. Enter the Destination IP.
  3. Enter the Subnet Mask of the destination IP.
  4. Enter your local LAN Gateway IP address.
    • This is the LAN IP assigned to the router connected to the Comcast Gateway.
  5. Select Add. The new static route will be added to the static routing table.
  6. Repeat steps 1 through 5 to add additional static routes.
  7. Select Apply to activate the static routes.

Were these different than doing it manually in the gateway?

I no longer work for Comcast. 

New Contributor


2 Messages

11 months ago

I am having a similar problem on a tec cg4131com. Every time I enter information on the static route screen, I get the same error "Failed. Please try again later, Gateway IP must be reachable. Netmask must match route address". it doesn't matter what is entered, the same message is displayed.

The destination ip range is to with subnet of

The Gateway private Internal IP is with the external public IP of

I'm connecting to an Enterasys C3 with three vlan's.  vlan 25 is the network, vlan 26 is the and vlan 27 is the network. Only vlan 25 and 26 are currently being used. The C3 has been tested without being connected to the CG4131com, with no problem moving between vlans. Once connected to the CG4131com it no longer recognizes the network. I know a static route will solve the resolution, but I just get the same error.

Name FCC VLan 26

Destination Subnet

Subnet Mask

Gateway IP

Also There are 4 reserved ip's C3 address 1 Laptop VPN C3 address 2

There are 5 port forwards 

VPN to

RDP, Tightvnc-out, Tight vnc-in, DVR to



18 Messages

Hi, @user_4dc6b8. Thank you for reaching out for assistance, we're happy to help with your internet concerns. Since this post is over 30 days old, we ask that you please create a new post for better visibility. 

I no longer work for Comcast.