The problem
Changing the ISP router can alter gateway, DHCP, port forwarding or remote-access behavior.
Recommended approach
Recheck the recorder network configuration and use the supported secure remote-access method.
Step-by-step checklist
- Note the old and new network ranges.
- Confirm the NVR has the correct gateway.
- Test local viewing first.
- Reconfigure remote access if required.
- Test from mobile data, not only the office Wi-Fi.
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