DHCP client WAN ports not working in V1.39

Pedroj

Hello. After updating a 200HP and a 500H to version 1.39, the DHCP client on the WAN side fails to obtain an IP address from the Internet Service Provider (ISP).
I reverted to the partition running version 1.38, and everything is working correctly again; the DHCP client successfully obtains an IP address on the WAN ports configured this way.
Is this an issue with version 1.39? What has changed?

Maverick87

Hi @Pedroj,

Can you share your port configuration via a screenshot?

I use the physical eth port P1 to obtain an address via DHCP and works correctly.
I don't obtain it directly from ISP, but I obtain it from another device directly connected to the P1 port.

FWA (DHCP Server) —> Port P1 on Flex 500H

The FWA release correctly the IP to flex, and the flex take correctly the IP from DHCP.

Pedroj

It is a simple configuration.

Port P1 is connected to an ISP modem that assigns a public IP based on the MAC address.
It works without issues on v1.38, but on v1.39, port P1 fails to receive an IP; the ISP does not detect the P1 DHCP client requests.

PeterUK

Note that the packet capture on FLEX H model may not correctly capturer the DHCP being done.

The DHCP client method for discover and request options has not changed in over a year so this is unlikely to be the issue.

So to capture the problem you will need a switch with mirror support to capture the working v1.38 to V1.39 between FLEX H and internet

check the MAC did not change for any reason