In addition to what ShiftTeam has posted, here are other ways to help you out.
Quote from Ethereum docs modified to suit with SHIFT.
Common Problems With Connectivity
Sometimes you just can't get connected. The most common reasons are as follows:
- Your local time might be incorrect. An accurate clock is required to participate in the Shift network. Check your OS for how to resync your clock (example sudo ntpdate -s time.nist.gov) because even 12 seconds too fast can lead to 0 peers.
- Some firewall configurations can prevent UDP traffic from flowing. You can use the static nodes feature or admin.addPeer() on the console to configure connections by hand.
Here is what you can do to create a static-nodes.json file (=add peers automatically at launch):
(this explaination is for Windows, but is similar on other OSes as long as you change paths and filenames accordingly)
1. Use Windows key+R to open the Run window.
2. In the Run window, type %appdata%\Shift to open the Shift data folder.
3. Right inside this folder, create a file called static-nodes.json
4. Open this file in your text editor.
5. Copy and paste this inside: (yes, including the brackets)
[ "enode://4c8635f108dae8a997697d9c22ddca36969e7f9bc57d9fc01102d7e7d9633231331ae7f7307aceb1aa19130b5bdd4afe397db616c76e7ffc1c69302ba0d09a39@45.32.182.61:53900", "enode://80d0ce5c992f8cc83cdbfd6d832b2dff2e82fee1f8b58762cd858eaacfcc99d5a8a837648bd28a2d508cc1da305c15cf4e531546034ed1a8ccd07ff51a71abd6@108.61.177.0:53900", "enode://f019da062a635a4e9e89ec93edc7ca11c06fdfec0574f1cb001126a82dc6ffa6ca05f924a683934ff5d01fc5d4b0ac9507349a945c97121b2a355d39b1781cd7@104.238.157.156:53900"
]
6. Save the file. (If needed, you can always add new nodes in this file later on.)
7. Launch your wallet as usual.
