This is an expected behavior ofDynamic Host Configuration Protocol(DHCP), which most networks use.
However, some people require fixed IP addresses to access their devices remotely over the internet.
IP addresses for mobile devices connecting to publicWi-Fi hotspotsalso change regularly.
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This capability can be useful when a source or destination IP address must be on an approved list.
Using a VPN even if your ISP won’t supply a fixedpublic IP addresscan help you surmount this barrier.
