I have a Archer MR200 v1 Firmware Version:0.9.1 1.2 v004a.0 Build 180502 Rel.53881n with a SIM card and connected on the WAN/LAN1 Port. Of course the port is configured as backup WAN port. There is a dhcp server running on the Archer MR200 10.8.11.1/24. Shocked I can see the MR200 DHCP  Server on the ER605 LAN. The ER605 V2 does not seem to set the MAC address correctly when I configured the WAN/LAN1 Port. It seems to leave the MAC from LAN. Here the output of an NMAP scan which is running on the LAN from the ER605 V2:

Pre-scan script results:
| broadcast-dhcp-discover:
|   Response 1 of 1:
|     IP Offered: 10.8.11.102
|     DHCP Message Type: DHCPOFFER
|     Server Identifier: 10.8.11.1
|     IP Address Lease Time: 1d00h00m00s
|     Subnet Mask: 255.255.255.0
|     Router: 10.8.11.1
|     Domain Name Server: 8.8.8.8, 64.6.64.6
|_    Domain Name: h.havelnet.at
Nmap done: 0 IP addresses (0 hosts up) scanned in 1.61 seconds

Does anyone know ow to address the issue? In the ER605 V2 LAN I only want to see the DHCP Server from ER605 running.

Many thanks on advance for any sort of hints,

Regards

Stepan