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What do the Different Color Indicators Mean in LogMeIn Hamachi?

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A circle in front of each peer on your Hamachi list is a status indicator.

The color of this indicator reflects the status of the connection between you and a peer.

greyThe peer is offline.
blinking greenThe client is trying to establish connection to the peer.
solid greenThere is a direct link between the client and the peer.
blueThere is a relay tunnel between the client and the peer. You may have to set a static TCP or UDP port for Hamachi to use. This is generally necessary when you have a computer behind a router or NAT device and its support of NAT is poor. In this case, you should set up a static port forward on the router/NAT, and then fix a static port in Hamachi. 

For Port Fowarding, please note that every device is different, and very detailed info per device can be found on PortForward.com.  If you are setting up port forwarding, it is recommended to set them up for both TCP and UDP protocols, and to keep them the same number.
  1. On the Hamachi client, click System > Preferences > Settings.
  2. If you are in the Basic Settings view, click the Advanced Settings link at the bottom.
  3. Scroll down to the Peer Connections section, and enter the port values you set up in your port forward settings of the router/NAT in the Local TCP Address and Local UDP Address.
    You do not need to enter an IP Address, just the port number into the short box. See note below
  4. Restart Hamachi.
Note: You do need to enter an IP Address if you have more than one active internet connection.  Enter the IP Address of the Local adapter you wish Hamachi to connect through.
redTraffic is blocked between the client and the peer. Right-click on the peer to find out why communication is blocked.
ProductLogMeIn Hamachi

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