Hello,
open you config file and add the IPs for node which I give you, probably you can get from some one else too:

    "addr": "176.50.103.5:9669",
    "addr": "212.85.91.97:9669",
    "addr": "98.109.143.63:9669",
    "addr": "[2001:0:4137:9e76:489:3e0e:a9ed:a0c7]:9669",
    "addr": "[2001:48f8:28:11e:fc33:cd98:6652:dd27]:9669",
    "addr": "103.254.210.55:9669",
    "addr": "133.130.66.167:9669",
    "addr": "91.224.235.73:9669",

Also do it like that: addnode=176.50.103.5:9669
(take the IPs with the port, which is in the quotes.., don't paste the " " " there)
You are able to open the conf. file from the wallet and edit it right there: Wallet: Tools-> "Open Wallet Configuration File"

After you finish your conf file, and save it, you have to exit the wallet and run it again xD

Regards: SHNICI - Georgi