RT-AC88U WiFi Routing Problems

[Schlameel]

The router does not connect wireless clients sometimes. Two clients are connected to the wireless network, but one will not be able to communicate with the other. I can ping both clients from a third client and I can ping both clients from the router itself. However, one of the clients will respond "No route to host".

I am using Pi-hole for DNS, if that matters.

Any suggestions would be appreciated.

 

[RMerlin]

Make sure your clients are properly set to DHCP and not to a static IP.

 

[Schlameel]

They are all set to DHCP. Thank you for the tip.

 

[RMerlin]

Most common issue there is mismatched network masks. Might be worth making sure you don't have a second rogue DHCP server on your network.

 

[Schlameel]

Most common issue there is mismatched network masks. Might be worth making sure you don't have a second rogue DHCP server on your network.

I disabled the DHCP server on the router and from both wireless and wired clients I ran:

# sudo nmap --script broadcast-dhcp-discover

and got no response. I enabled the DHCP server on the router and got a proper response.

I cannot find evidence of another DHCP server on my network, but thank you for the help.

 

[Johnny70]

Check the setting of the client's adaptor that it is matching IP address........

 

[Schlameel]

Check the setting of the client's adaptor that it is matching IP address........

Thanks @Johnny70. The IP address of the client is correct. I can ping it from some devices, both wired and wireless, just not all devices can access it.