Try this:
In your protoshares wallet click on Help, then Debug window, then Console and input the following, one line at a time
Add these nodes to download the blockchain
addnode=61.238.157.8 add
addnode=54.254.192.95 add
addnode=54.207.21.146 add
addnode=54.206.30.227 add
addnode=54.219.164.14 add
addnode=146.185.172.136 add
addnode=162.243.14.13 add