Users were moved from the local DHCP server to the remote corporate DHCP server. After the move, none of the users were able to use the network. Which two issues will prevent this setup from working…

Auto-QoS prioritizes certain traffic and typically does not block essential services like DHCP completely, making it an unlikely cause for all users to fail getting IP addresses.

DHCP Discover messages are broadcast messages and do not traverse router boundaries by default. For a remote DHCP server, the local router or Layer 3 switch must be configured with an `ip helper-address` (DHCP relay agent) to forward these broadcasts as unicast messages to the remote DHCP server's IP address.

802.1X is a port-based authentication mechanism that usually operates after or alongside DHCP. While it can block network access, it's not the primary cause of DHCP traffic itself failing to reach the server for initial address acquisition.

For a remote DHCP server, DHCP relies on unicast forwarding by a relay agent, not direct broadcast propagation across subnets, so the size of the local broadcast domain is not the direct cause of remote DHCP failure.

Even if a DHCP helper address is correctly configured, the router or Layer 3 switch acting as the relay agent must have a valid IP route to reach the remote corporate DHCP server's IP address. Without a route, the forwarded DHCP requests and subsequent responses cannot reach their destination, preventing IP address assignment.