软件的某些网络连接服务无法使用

由于安装vpn等服务，可能默认修改了注册表信息，导致电脑软件的某些
网络连接服务不可用，参考
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RasMan\Parameters]
“Medias”=hex(7):72,00,61,00,73,00,74,00,61,00,70,00,69,00,00,00,00,00
“ServiceDll”=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,\
00,74,00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,\
72,00,61,00,73,00,6d,00,61,00,6e,00,73,00,2e,00,64,00,6c,00,6c,00,00,00
“IpOutLowWatermark”=dword:00000001
“IpOutHighWatermark”=dword:00000005
“ProhibitIpSec”=dword:00000001

这个注册表文件，将新添加的这些字段删除即可。