no route to host" error on 3G/4G network but not on WIFI

[Gaurav Jain]

Please help me understand and resolve this issue.

• I am getting "no route to host" error on 3G/4G network but not on wifi

• It does work on Wifi

• We did try re-starting/booting phone, turn on/off Airplane mode but it did not help.

• I do have following implemented: robbiehanson/XMPPFramework#718

• Following really old StackOverflow question suggested issue using BSD sockets with 3G n/w. However, I am not sure.
  * http://stackoverflow.com/questions/3635412/intermittent-no-route-to-host-on-ios-flight-mode-off-then-on-fixes

• While setting up xmppStream, I do following which bypasses SRV resolution. Could this be an issue?

[self.xmppStream setHostName:"dev.example.com"];

Apart from below observations, I ran a ipv6 validation test on my domain name (example.com) and it says "No AAAA record found". http://ipv6-test.com/validate.php

Can you please provide pointers on what could be wrong?

I don't have access to device.

Please help.

[Jim Geldermann]

I had the issue and resolved it by setting the dns manually on the device. 

Jim Geldermann 

(847)910-3010

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[Gaurav Jain]

Can you please provide instructions on how to set DNS manually on device for cellular data?

[Joe Francia]

I believe your cellular carrier controls DNS for cellular connections

Joe

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