iPhone and Windows XP VPN Server

[alamarco]

Has anyone successfully connected to a Windows XP VPN server?

I followed this guide on how to setup a VPN server in Windows XP. When connecting from my laptop, I can connect successfully. However when I try to connect using my iPhone, it fails to connect.

I have these settings:

PPTP
- Description: VPN
- Server: <my ip>
- Account: <my username>
- RSA SecurID: OFF
- Password: <my password>
- Encryption Level: Auto
- Send All Traffic: On

I have the PPTP port forwarded in my router. When trying to connect it says connected, then it goes to starting and then it fails. Any ideas?

[coop1701]

Originally Posted by alamarco

Has anyone successfully connected to a Windows XP VPN server?

I followed this guide on how to setup a VPN server in Windows XP. When connecting from my laptop, I can connect successfully. However when I try to connect using my iPhone, it fails to connect.

I have these settings:

PPTP
- Description: VPN
- Server: <my ip>
- Account: <my username>
- RSA SecurID: OFF
- Password: <my password>
- Encryption Level: Auto
- Send All Traffic: On

I have the PPTP port forwarded in my router. When trying to connect it says connected, then it goes to starting and then it fails. Any ideas?

I haven't had any issue with that. I use multiple VPN's too. A VPN from my home network out to work. and a VPN from my phone on AT&T's network to my home. Either way. I have had no issue. However it sounds more like a router or network issue than a problem with your phone. Your settings look correct and Mirror what I use.

In my case, my Router actually accepts the VPN and the port forwarding to carries to the correct PC in the house.

[alamarco]

I know the router's not the problem as I can connect via my laptop and also I can see my firewall on the server logging the traffic. The iPhone sees the server as it tries to start, but fails to start for some reason.

[coop1701]

Originally Posted by alamarco

I know the router's not the problem as I can connect via my laptop and also I can see my firewall on the server logging the traffic. The iPhone sees the server as it tries to start, but fails to start for some reason.

How is your laptop connecting to the internet?

[alamarco]

WiFi, while at school.

I tried downloading the DD-WRT firmware for my router, had it all setup. The laptop could connect to the VPN, but the iPhone couldn't connect. I read something about Mac OSX not being able to connect unless encryption was enforced. I tried enforcing encryption on the server, but no luck at all.

With a laptop it's so easy, but with the iPhone it's impossible. Maybe I'll have to try and look at IPSec and not PPTP.

[coop1701]

Originally Posted by alamarco

WiFi, while at school.

I tried downloading the DD-WRT firmware for my router, had it all setup. The laptop could connect to the VPN, but the iPhone couldn't connect. I read something about Mac OSX not being able to connect unless encryption was enforced. I tried enforcing encryption on the server, but no luck at all.

With a laptop it's so easy, but with the iPhone it's impossible. Maybe I'll have to try and look at IPSec and not PPTP.

I use PPTP for my work VPN. I have had no issues with my VPN connection to it. It almost sounds like a encryption issue you're having.

[rorschach]

Same problem here when connecting via PPTP. It doesn't actually say "Connected" for me, it just goes from "Connecting..." to "Starting..." and then throws up an error stating "a connection could not be established to the PPP server".

I'm behind a D-Link DIR-655 router. Opened ports 1723, 500, 47 for both TCP/UDP (more than I need I know, but was experimenting). Setup protocol 47 (GRE) under Virtual Server (which is also why I tried opening port 47, out of exasperation). Setup exceptions for all of these in Windows Firewall but still no dice.

Any ideas would be helpful. Thanks.

[larsdennert]

Likely the iphone doesn't support MSCHAP v2 on PPTP. Forward port 500 in addtion to 1723 and see if you have better luck with ipsec. (I've not used VPN on the iphone/itouch. BTW)

Also make sure you assign a range of ip addresses on the XP server.

[rorschach]

Originally Posted by larsdennert

Likely the iphone doesn't support MSCHAP v2 on PPTP. Forward port 500 in addtion to 1723 and see if you have better luck with ipsec. (I've not used VPN on the iphone/itouch. BTW)

Also make sure you assign a range of ip addresses on the XP server.

The phone does support MSCHAP v2 over PPTP:
http://support.apple.com/kb/HT1288

I'm at a loss here... I tried setting up an IPSec connection instead but didn't get much further and it was a lot more complicated.

[abeell]

restart your router

and make vpn