Change Subnet to /22

Im using Sophos XG230 and Ive change the subnet to /22 (192.168.0.1 - 192.168.3.254 from /24 (192.168.0.1-254). now I test to reserve IP 192.168.2.1 and put that IP to laptop, the problem is I cannot ping the Firewall(192.168.0.1) so the laptop cant access the internet also but if I ping my workstation(192.168.0.45) and other devices I can ping it. Did I missed something?

I do the trace route but the result is RTO.

Thanks for your help



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[edited by: Erick Jan at 3:52 AM (GMT -8) on 29 Nov 2023]