FTP & RDP Apps no longer connecting on LTE w/ 10.3

TomiY1

macrumors member
Original poster
Sep 13, 2008
69
1
San Diego, CA
Has anyone else noticed that the following apps are no longer connecting when on a cellular connection?

Apps:
iTeleport Remote Desktop
Splashtop Personal
easyFTP Pro
Air Video HD

Local and Remote WiFi works just fine. This has been an issue ever since I upgraded my iPhone 7 to 10.3. (I am on T-Mobile btw)

If anyone else with my setup can test it, it would be greatly appreciated. I want to know if its just me or its an actual bug in iOS 10.3 or the individual apps themselves that need updates from a change in how 10.3 works now. Thanks in advance!
 
Last edited:

paulg1981

macrumors regular
Nov 16, 2014
109
29
Looks like the latest carrier settings has the previous issue of no fallback for IPv6
 

TomiY1

macrumors member
Original poster
Sep 13, 2008
69
1
San Diego, CA
Last edited:

ajayjp

macrumors member
Oct 30, 2016
76
15

SlasherKG

macrumors member
Jun 15, 2010
80
28
I've heard from T-Mobile directly that they are no longer as of iOS 10.3+ and carrier version 28+ to change the carrier settings back to "fix" this (they basically begged Apple to allow them to fix it for 10.2.1 with carrier version 27.3).
Apple is adamant on only allowing IPv6 going forward.

It is going to be up to the app developers to fix the IPv4 literal issues in their apps...
 

zorinlynx

macrumors 603
May 31, 2007
6,086
8,676
Florida, USA
If Apple isn't allowing IPv4 on LTE anymore, how come my AT&T iPhone 7 (on 10.3.1) still has an IPv4 address on the cellular connection?

Is this requirement only for some providers?
 

SlasherKG

macrumors member
Jun 15, 2010
80
28
If Apple isn't allowing IPv4 on LTE anymore, how come my AT&T iPhone 7 (on 10.3.1) still has an IPv4 address on the cellular connection?

Is this requirement only for some providers?
No, it has to do with the carrier.
T-Mobile US is an IPv6 only network.
They were previously relying on iOS to translate the IPv4 addresses to IPv6.
Apple has removed this functionality to force IPv6 support.

Other carriers are dual-stack so you can reach either type of address directly.

It's a cost of being cutting edge on T-Mobile's part that is hurting us in the short term.
 

zorinlynx

macrumors 603
May 31, 2007
6,086
8,676
Florida, USA
No, it has to do with the carrier.
T-Mobile US is an IPv6 only network.
They were previously relying on iOS to translate the IPv4 addresses to IPv6.
Apple has removed this functionality to force IPv6 support.

Other carriers are dual-stack so you can reach either type of address directly.

It's a cost of being cutting edge on T-Mobile's part that is hurting us in the short term.
I think it'll be great in the long run, though.

The sooner we can get off IPv4, the better. The Internet works so much better when there's sufficient address space.
 
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