Pat Lv4Posted 04 May 2023 11:23
  
There could be several possible issues that may be causing DHCP to not give an IP address within one hour on your Sangfor NGAF after a machine restart.

DHCP Server Configuration: Check if the DHCP server is configured correctly. Ensure that the DHCP scope, subnet mask, lease duration, and exclusion ranges are set correctly. Make sure that the DHCP server is enabled and running.

Network Connectivity: Check if there is network connectivity between the DHCP server and the client machines. Ensure that the DHCP server can reach the client machines and vice versa. Check for any network configuration errors, such as incorrect IP addresses, subnet masks, or gateways.

DNS Configuration: Check if the DNS configuration is set up correctly. Ensure that the DNS server is running and can resolve domain names. Check if the DNS server is configured as the primary DNS server for the client machines.

Firewall Configuration: Check if the firewall is configured correctly. Ensure that the firewall rules allow DHCP traffic to pass through.

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