problem safari 7 with open vpn
hi , i have a big problem on ios maverick and safari 7 on it . in my country some sites like facebook , twitter and google plus is blocked , so we have to use a vpn or proxy to open this sites , now the problem is when i connect to my Open vpn in viscosity ( third app for open vpn connecting ) with UDP protocol , safari doesn't open any pages , but chrome does . i tried Kerio vpn , in kerio vpn safari opens sites and even facebook , but it doesn't open Twitter and google plus , with kerio vpn chrome , safari or any browser doesn't open twitter and google plus , so i tried use Proxifier and an https proxy account , the result is same as the kerio vpn , none of my browsers opens twitter or Google plus .
i didn't have this problems on Mac mountion Lion or earlier version of mac , but seems in mavericks there is some changes that doesn't let me to work well with any VPNs .
i should say the PPTP protocl vpn is blocked on my country too so i can not use it . i can just use Open vpn , Kerio vpn or Https ( socks ) proxy . so i just want to know how can i make this vpns works in maverick like what i use in Mountion Lion ?!! why in Mountion Lion there is no problem but in maverick does ?! is there any option for changes ?
MacBook Pro, iOS 7.0.4