@YuriyB 

What does the computer MAC address reading look like? 

Does it match the MAC address you have configured? 

PC nowadays support a dynamic MAC address for privacy. So, is this ruled out? 

  @Clive_A Hi, all devices have Ip reservation and static ip\mac

  @YuriyB 

YuriyB wrote

  @Clive_A Hi, all devices have Ip reservation and static ip\mac

 

That is to say, the device is getting the desired IP. You compared the MAC address in the IP-MAC binding and in the MAC filter.

The MAC address matches. Correct IP is assigned. That's the correct understanding of your description? 

I think Firewall- Anti ARP spoofing setting with Permit the packets matching ip-mac binding entries only is similar to MAC Filter but a little better?

  @YuriyB 

YuriyB wrote

YES. Correct IP must be assigned because all IP and MAC Static. but I get Undefined network - no access to router.

arp -a

ipconfig

And what's the result of ping default gateway?

Please mosaic your sensitive information. Here is a list of information considered sensitive:

1. Public IP address on your WAN if your WAN is.

2. Real MAC address of your device.

3. Your personal information including address, domain name, and credentials.

For troubleshooting purposes, when a WAN IP is needed, please leave some values visible for identification.

  @YuriyB 

YuriyB wrote

  @Clive_A I apologize, my problem is that I did not notice how the switch after rebooting occupies 192.168.6.14 

 

although the address is in reserved list 192.168.6.13 and I dont know why it is happening.  

 

 

so I get on remote log  ER605: firewall<4>,,,,Detected suspected ARP attack packets. Be careful!

 

and lots of  detected ARP conflict and dropped  packets. for all devices connected to switch. 

 

I just set permanent ip on my tplink smart switch and problem is solved. working

thanks.

Good to know.

That happens when your network scale grows larger. I usually keep an Excel of the reservation and a diagram of the network, and modify or update it when a new device joins the network.