L2TP VPN configuration iOS 14

with the new iOS 14 update now the VPN I configure is not working it keeps showing:
"The l2TP-VPN server is did not respond. try reconnecting. if the problem continues, verify your settings and contact your admin."
but if I try on my other iphone which runs ios 13.7 it connects fine with the same exact settings.
How can I fix that
Up vote post of Hatem91salameh Down vote post of Hatem91salameh
17k views
Posted by
Hatem91salameh
Reply

  • Same problem here with iOS 15.0.2 and iPhone 13 Pro max, why apple still not fix it?

    —
    Osachub
Add a Comment

Replies

faced the same issue, looks like a widely iOS14 bug for L2TP VPN connection.
Posted by
Cutezjz
Post not yet marked as solved Up vote reply of Cutezjz Down vote reply of Cutezjz
Add a Comment
same problems with our company VPN...
iPad iOS 13.6 works fine
iPad iOS 14 "The l2TP-VPN server is did not respond. try reconnecting. if the problem continues, verify your settings and contact your admin."

same on iPhone and iOS14
Posted by
barchettaplayer
Post not yet marked as solved Up vote reply of barchettaplayer Down vote reply of barchettaplayer
Add a Comment
Can you please file a Bug Report here with a complete description of what you are seeing on iOS 14. Also, as you will most likely be asked, please include a sysdiagnose that is taken after you have reproduced he issue. Please include the following debug profiles on your device before you take the sysdiagnose:

  • CFNetwork

  • Network Diagnostics

  • VPN (Network Extension)

Please note the time and date you reproduced the issue and mention this on your bug report.
Please follow up with the Feedback ID when you have done so.


Matt Eaton
DTS Engineering, CoreOS
meaton3@apple.com
Posted by
meaton
Post not yet marked as solved Up vote reply of meaton Down vote reply of meaton
Add a Comment
I have the same issue on iPad 2018 with IPadOS 14
Posted by
Frank-ME81
Post not yet marked as solved Up vote reply of Frank-ME81 Down vote reply of Frank-ME81
Add a Comment
Same issue on iPhone SE with iOS 14
Posted by
rustter
Post not yet marked as solved Up vote reply of rustter Down vote reply of rustter
Add a Comment
Same problems with l2tp. iPhone 7 iOS 14.
Posted by
0dmin
Post not yet marked as solved Up vote reply of 0dmin Down vote reply of 0dmin
Add a Comment
same here. VPN via L2TP is not working. iOS 14.0 (18A373) on iPhone SE (2020).
Posted by
migaspar
Post not yet marked as solved Up vote reply of migaspar Down vote reply of migaspar
Add a Comment
@meaton I already reported a bug on feedback assistant for this issue



Posted by
Hatem91salameh
Post not yet marked as solved Up vote reply of Hatem91salameh Down vote reply of Hatem91salameh
Add a Comment
@Hatem91salameh Thank you. What is you Feedback ID and did you also include a sysdiagnose with the instructed information that I provided?


Matt Eaton
DTS Engineering, CoreOS
meaton3@apple.com
Posted by
meaton
Up vote reply of meaton Down vote reply of meaton
Add a Comment
Same issue here. L2TP does not connect on ios14 while ios13 and os x 10.13.2 works fine.
Posted by
pzhang1357
Up vote reply of pzhang1357 Down vote reply of pzhang1357
Add a Comment
I have same issue with iPhone 11 Pro and iOS 14, but this connection has work properly on iOS 13.7.
Posted by
ParhamB
Up vote reply of ParhamB Down vote reply of ParhamB
Add a Comment
Same issues with my iPad mini upgraded to PadOS 14. Any fix or settings can provide ?

Thanks
Posted by
rickysuper
Up vote reply of rickysuper Down vote reply of rickysuper
Add a Comment
@meaton I have submitted feedback with your debug profiles. Feedback ID is FB8713513.
Posted by
rustter
Up vote reply of rustter Down vote reply of rustter
Add a Comment
sha2-truncbug=yes

delete this in your ipsec config, and it worked.

I use libreswan+xl2tpd
Posted by
Luyegang
Post not yet marked as solved Up vote reply of Luyegang Down vote reply of Luyegang
Add a Comment
if remark sha2-truncbug=yes or change to sha2-truncbug=no, other devices may not be connect.
Posted by
rickysuper
Post not yet marked as solved Up vote reply of rickysuper Down vote reply of rickysuper
Add a Comment