Inconsistent connection, unable to resolve DNS when using VPN on demand profile
Posted: Wed Jul 24, 2019 2:52 pm
I have a VPN-on-demand profile set up on my iPhone to connect to my vpn server running on my ddwrt router so that I can employ a DNS server from a pi-hole behind my firewall. I have the connection rules set up to connect when I'm not on my home wifi network. All works well, most of the time. Sometimes it gets stuck in a loop, unable to connect. When it doesn't connect initially, I can open the OpenVPN Connect iOS app and I see these messages repeated over and over in the log:
When I manually disconnect at that point, iOS will retry automatically and then I will always connect successfully.
Of course the wifi and vpn disconnects when the phone is sleeping. Upon wakeup, it seems like my vpn server name is unresolvable until I manually disconnect and then let iOS automatically reconnect. Again, this is inconsistent - it works probably 80% of the time when I wake up the phone and view the home screen. I have noticed that if I unlock the phone via TouchID and wait about a second before pressing the home button to actually go to the home screen, it connects every time. But if I unlock it and go to the home screen without a delay, it sometimes but does not always connect.
My pertinent app settings are as follows:
Reconnect after wakeup: on
Seamless tunnel: on
VPN protocol: adaptive
Connection timeout: continuously retry
Connect via: any network
Layer 2 reachability: on
App version: 3.0.2.(894)
iOS version: 12.3.1
Has anyone else ever run across this issue before? Anyone have any ideas on what I could try to make it consistently connect or prevent the server name from being unresolvable?
Thanks in advance!
Code: Select all
2019-54-24 08:54:33 EVENT: Server poll timeout, trying next remote entry...
2019-54-24 08:54:33 EVENT: RECONNECTING
2019-54-24 08:54:33 EVENT: RESOLVE
2019-54-24 08:54:43 EVENT: Server poll timeout, trying next remote entry...
2019-54-24 08:54:43 EVENT: RECONNECTING
2019-54-24 08:54:44 EVENT: RESOLVE
...Of course the wifi and vpn disconnects when the phone is sleeping. Upon wakeup, it seems like my vpn server name is unresolvable until I manually disconnect and then let iOS automatically reconnect. Again, this is inconsistent - it works probably 80% of the time when I wake up the phone and view the home screen. I have noticed that if I unlock the phone via TouchID and wait about a second before pressing the home button to actually go to the home screen, it connects every time. But if I unlock it and go to the home screen without a delay, it sometimes but does not always connect.
My pertinent app settings are as follows:
Reconnect after wakeup: on
Seamless tunnel: on
VPN protocol: adaptive
Connection timeout: continuously retry
Connect via: any network
Layer 2 reachability: on
App version: 3.0.2.(894)
iOS version: 12.3.1
Has anyone else ever run across this issue before? Anyone have any ideas on what I could try to make it consistently connect or prevent the server name from being unresolvable?
Thanks in advance!