I dont know what you are talking about, i withdrew some Neo yesterday to buy OMG and i had no problem. Perhaps check your firewalls and any virus scanners you have on. Works fine for me.
I have the same problem and nothing works... Any idea?
This workaround can be used:
https://www.youtube.com/watch?v=4Tzv_wCX0Zw
Files can be download from here:
https://neo.org/download
In order to synchronize the blockchain quickly:
https://www.reddit.com/r/Antshares/comments/6ilkh9/how_to_speed_up_syncing_with_the_ant_shares_wallet/
Hopefully it'll work from the desktop wallet
It worked