New install OPNsense 24.7 Internet initaly connects then drops

[DoubleSpeed]

I've just downloaded and installed OPNsense 24.7 I connected the WAN to the cable modem I have mirrored the configuration settings from my existing router, OPNsense connects to the WAN and I can browse the internet and I can access the OPNsense dashboard etc however the internet drops and also the dashboard then becomes unresponsive etc can anyone point me in the right direction of how I troubleshoot this any logs etc that will reveal what is happening or any known issues?