[EVO 4G General] newuser134:
I am trying to use PPTP VPN with MPPE encryption enabled to connect to a network with a WRT54GL running dd-wrt-vpn running the vpn server. I know I have the server setup right, and I have added scripts to the server pptpd options file to require encryption "MPPE required" and disable compression "nodeflate". Using a rooted EVO 4G with stock 2.2 Froyo, I am able to connect successfully over 3G or 4G, however traffic only works for about 20 seconds, after that, no web pages will load, no ping, nothing, but the vpn stays connected and never disconnects. I know this has been an issue with Android since 1.6, and you can see the post on code.google, issue 4067, it's been there since november 2009, and has still not been fixed. I'm not asking a question about "what's causing the issue", so please don't tell me to use search just yet :) , what is strange to me is that if I use my Samsung Galaxy Tab 10.1 running Android 3.1 to tether to my Evo with wireless tether, then I can use the PPTP VPN client in 3.1, and it connects and creates a stable pptp tunnel, and I was able to have stable traffic for hours without anything going wrong (except for the Evo battery temp reaching 100F after some time :) ). They had reported on that issue 4067 that even the later versions of android don't have a working pptp and ppp0 client, so that's obviously not correct.

Anyway, I read a post here (in the Samsung Epic 4G forum) by member "drunix" from september of last year that said he was going to try to recompile the client with MPPE encryption enabled (assuming that is the issue in 2.2) if no one else has done it yet or tried to fix this yet. I don't think it's just the encryption that is the issue, because even with encryption disabled both on the server and client, traffic dies again after about 20 seconds.

So judging from what that member wrote, even though SO many android phone owners have complained so far about the pptp vpn client not working properly in Android versions 1.x and 2.x, no one has so far successfully fixed this issue yet, no one has even acknowledged or attempted to look at this issue yet so far other than that one member, not even the OS manufacturer. I have a hard time believing that the independent developers here and everywhere else make all these custom roms and kernels and other very impressive things from scratch, but no one has even touched this issue when functional pptp and ppp0 already exists almost on all other computer OS's and other platforms, and iPhone, WinMo and linux ALL have functional clients. All apple users say that they can successfully use the phone to connect to a pptp vpn. I guess this must not be important enough to catch the attention of any devs not only from google, but not even here. Is there any way some of the very knowledgable devs here, who can so easily root any new android version that comes out, take a look at this to see if they can fix it so android can be fully functional in all its included features like apple? I think this is the only major issue where android does not function as well as iOS, otherwise it is ahead of the iphone in every other aspect, so why not try to fix this for those who have the knowledge and fix things that are way more complicated than this?

Thanks