FeatVPN - Setup Failed I was using Feat VPN, when suddenly it wouldn't connect anymore. I uninstalled the app and wiped its data, then tried to reinstall it and run the set-up. However it stopped and failed on TUN Device Start 2 of 2.

I then checked the log on the app. It showed 'uncaught.exception.java.lang.illegalargumentexception`.

I also checked other forums and tutorials. They said check my /dev/tun file and make sure that its permission is set to rw-rw---- and ownership to uses= system and group=vpn. I did and it was already set to said permissions.

My brother and I have the same phone model. I tried to look for /dev/tun (hoping that I could copy/paste to my phone), but his phone doesn't have a tun file. However, he also uses Feat VPN. Can someone explain to me what is happening? My phone runs on Android ICS 4.0.4.

LOGCAT:
http://pastebin.com/Zd97gecr
Alright...line 5026, is the culprit:

E/FeatVPN ( 7206): [ 4] 2013-07-31 22:56:09 [   7206] [78752] [   Test] Invoking test to front listener
E/FeatVPN ( 7206): [ 5] 2013-07-31 22:56:09 [   7206] [78752] [   Test] Starting test [5]
E/FeatVPN ( 7206): [ 6] 2013-07-31 22:56:09 [   7206] [78752] [   Test] Invoking test start listener
E/FeatVPN ( 7206): [ 7] 2013-07-31 22:56:09 [   7206] [78752] [   Test] Waiting for L2TP tunnel completion (0 s)
E/FeatVPN ( 7206): 2013-07-31 22:56:10 [   7206] [57328] [  Proxy] Uncaught exception
E/FeatVPN ( 7206): java.lang.IllegalArgumentException: Bad address
E/FeatVPN ( 7206):      at android.net.VpnService$Builder.addDnsServer(VpnService.java:392)
E/FeatVPN ( 7206):      at android.net.VpnService$Builder.addDnsServer(VpnService.java:410)
E/FeatVPN ( 7206):      at com.featvpn.sdk.a.createTun2(Unknown Source)
E/FeatVPN ( 7206):      at com.featvpn.sdk.a.createTun(Unknown Source)
E/FeatVPN ( 7206):      at com.featvpn.sdk.Proxy.v(Unknown Source)
E/FeatVPN ( 7206):      at com.featvpn.sdk.Proxy.run(Unknown Source)
E/FeatVPN ( 7206):      at java.lang.Thread.run(Thread.java:856)


Reading this, it looks like the proxy address was set up incorrectly which explained why it crashed. You have it set correctly?

It might be best to log this with FeatVPN's developers as to why its happening when going through the setup procedure. Also noticed in the log, you are running Greenify, would that be clashing or conflicting with FeatVPN.