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PPTP Won't work after 4.3 Upgrade

We had a PPTP VPN connection on our department iPad. I upgraded to 4.3 and now it won't connect to the vpn. Has any one else had this problem? We know the vpn works, we connected an 4.2 iPhone. VPN device is a Nortel 1700.

iPad 16gb WiFi 1st Gen, iOS 4, iOS 4.3

Posted on Mar 10, 2011 2:03 PM

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123 replies

Feb 27, 2012 3:09 AM in response to JC_MacD

For those trying to get VPN working with DD-WRT on iOS 5.01 this is the solution that I finally found to make it work (credit to http://cnedelcu.blogspot.com/2011/10/pptp-server-fix-for-ios-problems.html and users in this thread)


My start up script is:

#!/bin/sh

echo "nopcomp" >> /tmp/pptpd/options.pptpd

echo "noaccomp" >> /tmp/pptpd/options.pptpd

echo "mtu 1400" >> /tmp/pptpd/options.pptpd

echo "mru 1400" >> /tmp/pptpd/options.pptpd

echo "default-asyncmap" >> /tmp/pptpd/options.pptpd

kill `ps | grep pptp | cut -d ' ' -f 1`

pptpd -c /tmp/pptpd/pptpd.conf -o /tmp/pptpd/options.pptpd


I then had to issue the following commands via telnet to get DNS to work:

nvram set pptpd_dns1=192.168.0.1

nvram set pptpd_wins1=192.168.0.1

nvram commit


where 192.168.0.1 is the DNS server address.


Finally for some reason I needed to delete and recreate the settings on the ipad/iphone instead of just modifying them before they would work. All setting are pretty standard except I have to set Encryption Level to Maximum and Send All Traffic to ON before it works properly.


I hope this helps someone

PPTP Won't work after 4.3 Upgrade

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