Decided to change a camera to static ip and changed last part of IP sector to 255. Currently I tried to connected IP cam using a Ethernet switch port poe to my IP camera. Using wireshark shows that camera is trying to communicate from 192.168.1.255. Camera is working fine and changes to IR lighting in low light. I changed my laptop IP to manual and tried with default gateway of 192.168.1.1 , netmask both 255.255.255.0 and all 255 , IP 198.168.1.254or253or250or any other last IP number. Seems that last port 255 preserved to internal usage or something else. When changed manual IP to presumably ipcamera the laptop just refuse to establish connection, so IP is correct. No proxy. All addresses I tried was http. Reolink RLC-810A don't have reset switch. That's bad.