Disabled Gateway (bad IP assignment)

[AntoineBAK]

Hello

i have the following message on my Meraki 

Disabled gateway - Bad IP assignment

My meraki switches are the folllowing:

C9300-24UX

C9300-48UXM

meraki switches are statically IP assigned

The default gateway is a fortinet playing the L3 routing.

I have a 9500 cisco, meraki monitored, with C9300 switches connected to it.

I tried :

- clear ap on fortinet

- change IP on 9300 switches

- reboot switches

I have also two meraki switches MS120, they are online with no error message

same for the 9500, online no error message

I suspect an issue with the C9300-M switches. Are you aware about possible issues with these devices ?

Thanks mate

Antoine

[DarrenOC]

More than likely a duplicate IP on the network.  Is there a dhcp scope setup for this range?  Did you reserve the IPs within the dhcp scope so they would t be assigned elsewhere?  Maybe try changing the IP in these switches to see if the issue clears 

[AntoineBAK]

Thanks for your reply

It was my idea as well

I tried already to change the ip but not betterave

I ask to change the dhcp scope to a range different than the static ips of the switches

But before the static ips were included in the dhcp scope

[DarrenOC]

When you changed the switch IP how long did you leave it there for?  Some alerts can take a while to clear in the dashboard 

[michalc]

Hi @AntoineBAK , 
Please follow the instructions from the Bad IP Assignment Configuration KB and let us know if any of recommendations helped.