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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

Reply
123 replies

May 7, 2011 6:15 AM in response to JC_MacD

This is really lame. My iPhone has worked with my dd-wrt VPN for at least a year with absolutely no problems. Then, Apple releases iOS 4.3x. Now, it does not work. And, since I have had the device for over a year, they want me to pay for support. Wow! What a great business plan. All they have to do is simply disable some feature in iOS with every release and then they can charge everyone to to tell them, individually, how to fix it. Thus, their revenues grow with every new release and their tech staff also grows. Unfortunately, it only works until some other company can provide a similar product with honest support. Then, the whole thing comes down like a Bernie Madoff scheme. Quick, someone check the visitor list at Bernie's prison to see if Steve has been by for a visit.

May 7, 2011 8:54 AM in response to alainexpat

Can we please return to some clarity of thought and civility. Apparently there is a disconnect in with constitutes "cause and effect." Just because an iOS patch resulted in some tunneling issues with a handful of routers, doesn't automatically mean that the problem is with the patch. Isn't it possible that some of the routers are not engineered to spec? Is it really Apple's burden to test each patch with each manufacturer's router (or mouse or monitor or hard drive or driver)? The computer world runs on open standards and open systems - everyone must trust everyone else to follow the rules. USB, Linux, HTML, WiFi are all prime examples. Apple may still be culpable, but it does appear to be a foregone conclusion.


The 'nopcomp' and 'noaccomp' are commands to turn off compression, BTW. Thanks Conradical.

May 7, 2011 9:55 AM in response to JC_MacD

Perhaps I should elaborate. I use a total of 4 devices with my VPN. Windows XP, Windows 7, Mac OS and an iPhone. All four of these devices have connected successfully to the same dd-wrt router via VPN for over a year. I have changed absolutely nothing at either end. With the advent of iOS 4.3, the iPhone quit. All of the others continue to work normally. I agree, Apple has no responsibility to test "new" features with all available combinations. I do think they have a responsiblity to continue to support the features that were available prior to an "upgrade".


I would be happy if Apple would simply provide a way for me to return to 4.2 iOS. That would solve the problem for everyone.


And, finally, my comments regarding Madoff were intended to add a little levity to this discussion. Nothing else.

May 7, 2011 11:56 AM in response to Kevin Kondo

FYI: iOS4.3.3 on iPad1 working for me.

  • PPTP to Linksys RV042 (firmware 1.3.12.19-tm)
  • L2TP to Windows 2003 server
  • IPSec to Cisco ASA5510 (COS 8.3)

Basically same equipment that I had previously working on iOS3 & 4.2.x & 4.3.1 & 4.3.2.


Conradical07 wrote:


...PPTP wouldn't working connecting to OpenSUSE 10.? box at the office (I control it)...

This is not just limited to DD-WRT.

...


@Conradical: isn't DD-WRT based on Linux? And DD-WRT's webpage says the name DD-WRT is the code for Dresden, Germany. Suse Linux came from Germany so perhaps the same code or programmer(s) or programmer based one on the other? I'm just thinking out loud, but the coincidence caught my eye.


@Kevin Kondo: Thank you for being another calm voice in the storm. 🙂 I've been following the thread but have to bite my tongue for all the "me too" posts without details. And sadly for the issue, all I can report is that for all iOS versions so far, the non-Linux based VPN endpoints I'm using have worked.

May 8, 2011 12:53 AM in response to JC_MacD

Does anyone know of a website that has older versions of iOS? For example, the 4.3 release of iOS for the iPhone has almost rendered my phone unusable due to problems with VPN. If I had known, I would have never installed the update. I would be very happy to simply retreat to any version of 4.2 iOS, but I have no idea where to get it. Help!

May 11, 2011 5:16 AM in response to Conradical07

Hello Conradical07..need your help

Im a newbie for DDWRT and IPAD 2 Firmware 4.3.2..can u please correct my original script of WRT54GL DDWRT so that I can add echo 'nopcomp' and 'noaccomp' or echo'default-asyncmap'>> as per your details and Syrex and Cosworth ..

I hv tried to add those words here and there but still not luck my Ipad 2 does not able to connet using PPTP to my DDWRT router.( Ihv got this original script from DDWRT forums)


Original script :

sed -i -e 's/mppe.*/mppe required,stateless/' /tmp/pptpd/options.pptpd

Appreciate any help given to solve this PPTP problems...thanks so much Conradical07


Sorry If I made any mistake, because this is my first time writing in the apple forums... my email address xpand168@yahoo.com


brgds Sid2

May 28, 2011 9:49 PM in response to sid2

Hello Everyone,Im a newbie on this forums, I would like to share my experince in solving my Ipad2 Ver 4.3.2 VPN PPTP connection problems to my dd-wrt router.

Many thank for the following people and dd-wrt forums/ dd-wrt wiki: Syrex, Cosworth, and Conradical07 ( Conradical07 thanks so much for the link ) and dd-WRT Forums discussion / dd-wrt wiki.


Problems that I encountered is a PPTP connection to my dd-wrt Router. ( My dd-wrt PPTP is connecting perfectly everytime with my iphone3gs Ver 4.2.1) ,but problems occuring when I try to connect my Ipad2 ver 4.3.2 to my dd-wrt router.


Solution : Actual step by step fix is shown in detail through the following link below :

I have these script from the dd-wrt forums http://www.dd-wrt.com/wiki/index.php/PPTP_Server_Configuration#iOS_4.3



#!/bin/sh


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


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


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


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



sed -i -e 's/mppe .*/mppe required,stateless/' /tmp/pptpd/options.pptpd

Steps on putting these script to the dd-wrt router :

1.login to dd-wrt

2.Administration

3.Commands

4.Paste the Script above to the Command Shell

5.Run command

6.Save Startup


The above script is include with a force encription for PPTP connection .

I hope my experience will help others with the same Ipad2 problems.


cheers

Jun 23, 2011 8:18 AM in response to alainexpat

alainexpat wrote:


Lucky you. The iPad 2 obviously has a complete set of options. Too bad the iPhone does not. We will have to wait for Apple to adjust the settings that they changed for 4.3. I can just imagine a couple of guys somewhere in the bowels of Apple saying "I wonder what these parameters do?"

Sorry for not being more specific. The following changes were in the options.pptpd on my DD-WRT router.


mtu 1400

mru 1400


I made no changes to the IPad2 config.

Jul 19, 2011 8:04 PM in response to JC_MacD

I was having trouble with this recently and just now got it working.


My iPhone was running 4.3.3 (whatever it was just prior to the latest release which is, I think, 4.3.4). I set up a vpn on my synology disk station (pptp) and set up the pptp vpn setting on the iphone. I could not connect. Today, I noticed that my wife's phone was running the latest (4.3.4?) ios and when I set up her pptp connection it worked. So I updated my phone to the latest and tried to connect again with no luck. I finally deleted the vpn on the phone and added a new one with the same settings and now it is connecting.


Was it the os? Maybe. Or perhaps it was deleting it and adding the settings again that did the trick. Anyway, I hope that this helps someone.


Good luck!

PPTP Won't work after 4.3 Upgrade

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