Realvnc home1/17/2024 "Carrier-grade NAT usually prevents the ISP customers from using port forwarding because the network address translation (NAT) is usually implemented by mapping ports of the NAT devices in the network to other ports in the external interface. I did not know about CGN before now, but Wikipedia clearly explains why "direct connect" VNC (which depends on port forwarding in the router) will not work: Many thanks for this very informative explanation. If tech support is reading this, can you make any further suggestions as to what I might also need to do? Any questions for me? Has anybody else here had SUCCESS using VNC and HughesNet? Or similar failure trying, such as I'm having right now? Also, attempts to perform "self-test connectivity confirmation test" from the VNC server on that machine to the RealVNC home web site are also failing to complete. And yet, attempts to connect TO that port at the external IP address of her modem are not completing. I've also entered that PC's MAC address in the "DHCP reservation" list, just to prevent it from moving around across machine re-boots, and to keep this port forwarding setup legitimate. I've simply enabled the specific port forwarding to the IP address of the specific host PC on the LAN, and checked the "enable" box. So maybe there's something else I need to do in the router (since this is my first contact with it). I've talked to tech support at VNC and they feel there should be no reason their connection would be failing, even in light of the very hight latency implicit in satellite connections. I've talked to tech support at HughesNet and they insist "all ports are open", and that the particual port being used by VNC is not specifically being blocked. The self-test connection diagnostic in the host server software also cannot connect at all to "home base", so this seems to point to something either in the router's configuration or in HughesNet in general which is simply preventing this type of connection. I have no problem (other than slow performance) going to her PC via Team Viewer, but cannot connect at all to the host software running on her PC. I have been unable to connect to her PC in Florida through VNC, even though I'm positive I have configured her router's "port mapping" correctly. I prefer to use VNC software and a direct connection (using port forwarding in her router), but will fall back to Team Viewer if necessary (since it is Cloud-based and doesn't depend on router configuration). Seems to work ok (upload appears to be 2-3Mb/s, with highly erratic download between 2Mb/s and 45Mb/s but mostly in the 20Mb/s range) given that she has no other internet service options where she lives.īeing her "IT guy", I support her remotely from my location in LA. Latest and greatest highest-speed option, which I assume is Gen5 equipment (HT2000 Wifi modem/router). Brand new HughesNet service install just last Friday for a friend at a new home in Florida.
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