Uploading project data following power failure

I have a H8P5-H48-120 Homeworks Illumination processor running 1.65 connected to my ethernet network via DHCP (fixed I.P. address). After a power outage, assuming no functioning battery, will the processor connect to my network as before and then I can upload a backup project database? Or do I have to connect to the processor via RS-232 port and laptop? I want to replace the aging 3.6v lithium battery, but not sure if I can connect back to the processor after power shutdown and reboot. Right now the communications is set for LAN and I can routinely connect to it via my desktop win10 computer running HW1.65. I have several project database files backed up. After a power outage and reboot, is is it easy to just reconnect and restore the project data?