Take a Tour
Support and FAQs
News and Tips
Vanity Node Numbers
Routers and Firewalls
ARRL Book on
EchoLink has been tested for compatibility with all versions of Microsoft Windows 7, Windows 8, and Windows Vista, the newest editions of the Windows operating system. If you are running EchoLink on Windows 7 or 8 or Vista, please be sure you have installed the latest version of EchoLink (2.0 or above), and also note the following:
Windows 7, Windows 8, and Windows Vista have a built-in firewall, which is enabled by default.
When it's enabled, it generally blocks any software on your
computer from being reachable from the Internet. Since EchoLink relies on
being reachable from the Internet, it will also prevent EchoLink from working,
unless a special "exception" is added for EchoLink.
Automatically Setting Up an Exception for
The first time you run EchoLink on a Windows 7, 8, or Vista machine,
you will probably see a message like the one below:
You can automatically set up Windows Firewall to work with EchoLink
by simply choosing "Unblock". This will create a special exception in the
Windows Firewall settings that allows EchoLink to be reached from the
Internet. Windows remembers this setting, so you will not need to
"unblock" EchoLink each time it runs.
If this message does not appear when you start up EchoLink, but you
are having trouble getting EchoLink to connect to other stations (or the Test
Server), try following the instructions below.
Manually Setting Up an Exception
1. Click Start and then click Control Panel.
2. In the control panel, under Security, click the link called "Allow a program through Windows Firewall".
3. In the General Tab, be sure that the option "On (recommended)" is
selected. If not, click it.
4. Be sure the checkbox "Don't allow exceptions" is not
5. Click the Exceptions tab at the top.
6. If EchoLink isn't already in the list of programs, click Add Program... (near the bottom). A list of programs
on your computer is displayed.
Locate EchoLink in the list of programs. Highlight it and
7. Be sure EchoLink is checked, then click OK again to complete the Windows Firewall setup.
Q: Why does EchoLink need an "exception"?
A: Unlike most of the other programs you probably
run on your computer, EchoLink is a peer-to-peer system. This means
that the EchoLink software must be able to receive information directly
from other computers on the Internet, as well as send it. By creating a
firewall exception, you are instructing Windows to allow your EchoLink node to
accept voice and text messages from other EchoLink nodes.
Q: Am I putting my computer at risk by creating a special exception for
A: With this configuration, when EchoLink is running, Windows
Firewall will allow other EchoLink nodes to communicate with your
computer using two UDP ports (5198 and 5199). These are the only
incoming ports that the EchoLink software requires. Because of the way
the EchoLink software is designed, these ports cannot be used to transfer
viruses or other harmful data to your computer. In addition, Windows
Firewall ensures that these ports are not "open" except when the EchoLink
software is running.
Q: I already have a router or firewall (separate from my
computer). Why do I need the Windows Firewall at all?
A: If you already have a "hardware" firewall on your
home network, you might choose to turn the Windows Firewall off entirely.
For more information, see the Microsoft Web site.
Q: I've added the exception for EchoLink, but I still can't
connect to the Test server, or to any other stations. What's the problem?
A: Most likely, another software or hardware
firewall is blocking the connection. For more information, try running
the Firewall/Router Test (from the Tools menu of the EchoLink software), and read the
report it generates. Also, take a look at the
Firewall Solutions page for hints.