I have a problem with the c5c after what I’ve done Reset Device Configuration
Now the device does not open with the IP address 192.168.1.20 and there is no ping up
Is the C5c connected to a network that has a DHCP server? (Either on the wireless side or on the Ethernet side)
By default the C5c will take a DHCP address before reverting to 192.168.1.20.
If your C5c has firmware 2.4.0 or later you can try setting your computer to 169.254.200.19/24 and try accessing the C5c at 169.254.200.20.