For the best user experience with Screens Connect, update to OS X Lion v10.8 or later (use Software Update to download and install the latest updates). Also make sure your router supports NAT-PMP (NAT Port Mapping Protocol) or UPnP (Universal Plug and Play), and that it's enabled.
These Airport models work with Screens Connect:
These Airport models do not work with Screens Connect (because their firmware does not support the minimum functional requirements):
If you use a router that is not manufactured by Apple, verify that it supports NAT-PMP (NAT Port Mapping Protocol) or UPnP IGDv1 (Universal Plug and Play Internet Gateway Device). Also, install the latest firmware available for your router. Check the manufacturer's website for instructions and more information.
Some routers will require special configuration in order to make them work with Screens Connect. We will add instructions for more routers in the future. If you have some instructions to share for a particular router, please contact us.
ActionTec model MI424-WR
The Tomato firmware cannot open public ports to any private port that is lower than 1024, which blocks ports 22, 80, 443 and others.
In our case, Screen Sharing uses the private port 5900 and Remote Login (SSH) uses port 22.
If you've enabled SSH in Screens Connect and your router uses this firmware, you may get a “Port Mapping not available” message.
There are two solutions to fix this:
Unfortunately, this modem does not support UPnP or NAT-PMP. The workaround is to either add a UPnP or NAT-PMP capable router between your 2Wire modem and your computer or to use the manual alternative: Mac, Windows.
This router, usually supplied by ISPs as a router and modem combo, doesn't seem to work well with Screens. Our recommendation is to put it in Bridge Mode and use a different router. Here's how to do that. Note that this is fairly complex and we can't provide additional support in configuring it beyond this.
According to some users, this may be enough, but if that doesn't work, follow these extra steps:
Thomson T6585v7, TG585v7
If you have an other router behind your U-Verse device that does support UPnP, you can put this router behind the AT&T-supplied gateway, and configure your router to become the "DMZPlus" device. Your router will then be able to support UPnP for your equipment.
If you can connect to other computers but they can't connect to yours:
Disclaimer: Due to the wide range of devices that may vary widely in their capabilities, the many different ways manufacturers implement and may change implementations of their devices, and the complexity and uniqueness of any given networking environment—you should use this information only as a general guide. The accuracy of this information is not guaranteed by Edovia; and users of this information must assume responsibility for purchase decisions.