CGNAT (Carrier-Grade NAT). You cannot port forward. You cannot host a Plex server. You cannot run a VPN server into your home. The LH1000 gives you an IPv6 address and a shared IPv4 address. If you need inbound connections, you will need a VPN like Tailscale or Cloudflare Tunnel.
However, its popularity birthed a shadow market. Because the hardware was desirable, the LH1000 became a prime target for counterfeiters. Units labeled as "Arcadyan LH1000" began appearing on eBay and Amazon, often with cheap, knock-off internal components and pirated firmware. It became a gamble to buy one second-hand; you might get a premium BT cast-off, or you might get a fire hazard. arcadyan lh1000
Inside the Arcadyan LH1000: The Unsung Hero of 5G Fixed Wireless Access CGNAT (Carrier-Grade NAT)