- To allow PPTP traffic, configure the network firewall to open TCP port 1723 and to forward IP protocol 47 for Generic Routing Encapsulation (GRE) traffic to the Deep Edge server. Some firewalls refer to IP protocol 47 as VPN or PPTP pass-through.

Aug 19, 2016 · The Error 691 occurs when the settings are incorrect on one of the devices (client or the server) and it cannot ensure authenticity of the connection. I had this frequently - turned out my router couldn't handle the number of VPn pass thurs - new router and all is stable with 30 concurrent PPTP sessions. 0 Pimiento 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. How to fix VPN error 691 Please make sure you enter the correct VPN password and username and not the client area login details. You have received them in two different e-mails. You can check your VPN password and username here " My Details ". Jan 22, 2013 · Error: 691: The remote connection was denied because the user name and password combination you provided is not recognized, or the selected authentication protocol you selected is not permitted on the remote access server.

VPN connect error 691 help, Small Business Server, Windows Small Business Server 2000 // 2003, Exchange mail server & Windows 2000 // 2003 Server / Active Directory

Jan 22, 2013 · Error: 691: The remote connection was denied because the user name and password combination you provided is not recognized, or the selected authentication protocol you selected is not permitted on the remote access server. I've run into this a few times with PPTP. Try the username without the Domain name ahead of it or the FQDN account name. So if your AD account is joesmith@widget.org , just try joesmith, not widget/joesmith or joesmith@widget.org . VPN connect error 691 help, Small Business Server, Windows Small Business Server 2000 // 2003, Exchange mail server & Windows 2000 // 2003 Server / Active Directory

I am also curios on W10M VPN support. PPTP should be discarded immediately due to a "5-mins-to-crack" fact. I will not expose my LAN to WAN with this, ever, never, windows Phone 8.1/Mobile 10 L2TP with PSK has not worked ever even with new 10586.164 build against Synology NAS VPN server..

- To allow PPTP traffic, configure the network firewall to open TCP port 1723 and to forward IP protocol 47 for Generic Routing Encapsulation (GRE) traffic to the Deep Edge server. Some firewalls refer to IP protocol 47 as VPN or PPTP pass-through. Thu May 10 19:21:19 2007 : PPTP connection established. Thu May 10 19:21:19 2007 : Using interface ppp1 Thu May 10 19:21:19 2007 : Connect: ppp1 <--> socket[34:17] Thu May 10 19:21:22 2007 : MS-CHAP authentication failed: E=691 Authentication failure Thu May 10 19:21:22 2007 : Connection terminated. Thu May 10 19:21:22 2007 : PPTP disconnecting On the router I have opened up ports 5900 and 5500 which I understand is used for this sort of thing. I've also allowed VPN-IPSEC, VPN-L2TP & VPN-PPTP (although I understand that it is the VPN-PPTP one that I am trying to use). Jul 10, 2020 · VPN Error 691. "Access denied because username and/or password is invalid on the domain" - The user may have entered the wrong name or password when attempting to authenticate to the VPN. What type of VPN is it; PPTP, L2TP, IPsec, SSTP? 691 is usually PPTP. If so none of those allow GRE. PPTP uses port 1723 TCP, GRE the second phase, authentication, which is protocol 47, there is no port association. On most routers there is an option (this is client side) allow PPTP pass-through, which allows GRE. Some routers don't support it