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I'm trying to connect to my computer via a remote connection app on my android
It would help if you could provide a a link that explains what the android application does and what information it needs.
You are likely using a four byte IP address. Also called IPv4 and is being replaced on the Internet.
There is some confusion about IP address. At present, an IP address is not a persistent identifier
for anything on the Internet. On a LAN the IP address is used to locate another device on the LAN, but not the Internet.
Please provide more information. There a re many volunteers here ready to help.