Given the same computer, using iPhone hotspot (off corp network), vpntest cannot connect (691 error) to VPN vpntest2 can connect to VPN. Even newly created users are able to access the VPN. It just seems to be with specific users who have been with the company for a very long time.
Mar 15, 2018 PPTP VPN not working with Windows 7. Getting Error 691. Dec 02, 2010 Connect to VPN:Error 691 - Microsoft® Community Mar 31, 2016 Fix VPN Error 691 on Windows 10 Verify the logon ID and password are correct. This might sound like a basic fix but works in most of …
修正：Windows 10での「接続がエラー691で失敗しました」
Jul 27, 2016 Error 691 in Windows 7 - Easy Fix For Windows 7 Error 691 Error 691 is a network related error which may appear at the time you are attempting to establish a dial-up connection in Windows 7. We had found that the error was
Dec 31, 2010
Feb 19, 2012