https://community.checkpoint.com/t5/Spark-Firewall-SMB/DHCP-Relay-issue-with-R81-10-17/m-p/273228#M13772 <P>Admin note:&nbsp;<a href="https://community.checkpoint.com/t5/user/viewprofilepage/user-id/136749">@Milo2323_</a>&nbsp;I separated this post from the original unrelated thread.</P> Thu, 12 Mar 2026 09:06:39 GMT _Val_ 2026-03-12T09:06:39Z https://community.checkpoint.com/t5/Spark-Firewall-SMB/DHCP-Relay-issue-with-R81-10-17/m-p/273213#M13771 <DIV> <P>Hi,</P> <P>I managed to update from R81.10.17 (996004721) and discovered that the local interface does not apply changes from DHCP to DHCP Relay. When I modify the local interface by switching from DHCP to DHCP Relay and save, the changes are not applied when moving between interfaces.</P> </DIV> <P>&nbsp;</P> Thu, 12 Mar 2026 09:06:02 GMT https://community.checkpoint.com/t5/Spark-Firewall-SMB/DHCP-Relay-issue-with-R81-10-17/m-p/273213#M13771 Milo2323_ 2026-03-12T09:06:02Z https://community.checkpoint.com/t5/Spark-Firewall-SMB/DHCP-Relay-issue-with-R81-10-17/m-p/273228#M13772 <P>Admin note:&nbsp;<a href="https://community.checkpoint.com/t5/user/viewprofilepage/user-id/136749">@Milo2323_</a>&nbsp;I separated this post from the original unrelated thread.</P> Thu, 12 Mar 2026 09:06:39 GMT https://community.checkpoint.com/t5/Spark-Firewall-SMB/DHCP-Relay-issue-with-R81-10-17/m-p/273228#M13772 _Val_ 2026-03-12T09:06:39Z https://community.checkpoint.com/t5/Spark-Firewall-SMB/DHCP-Relay-issue-with-R81-10-17/m-p/273258#M13774 <P>Did you open TAC case for this issue?</P> Thu, 12 Mar 2026 13:11:52 GMT https://community.checkpoint.com/t5/Spark-Firewall-SMB/DHCP-Relay-issue-with-R81-10-17/m-p/273258#M13774 the_rock 2026-03-12T13:11:52Z