Hello everybody , i need some help. Im a kind of a noob and i bought a little bit of Rads.

What i did :

- downloaded the radium wallet.exe , installed , go on receive , i see my Rads adress. Gave this adress for a cashout on Poloniex. Everything went fine. 

If i go on https://chainz.cryptoid.info/rads/ and paste this adress , i can see the Rads amounts correct as deposited.

However they do not appear on my Wallet. I guess its because its not sync , but when i go to transactions , sync with network doesnt do anything. Just stay stuck like this.

What should i do , and optional question , should i do more things in order to secure my wallet ?

Thanks a lot