Minecraft – Why don’t the dogs recognize me

They have a collar because it's the same entity as a tamed dog but it can't be edited in any way as you would with a tamed dog (using dye)

The only difference between tamed and untamed dogs in the code is that tamed dogs can have their collar painted and that they can sit down and teleport to the player.

The untamed tog just has an undefined color variable as it's collar color that displays the same color as the rest of the dog. Therfor it looks like it's not there

There is a lot of possible things that will occur, also in PC:

1. Check your Internet connection. Maybe giving your internet a google search or a speed test.

2. Test for another server. The server may be having too much traffic, so that it can't send you any data, causing a blank world to show up. (Lifeboat is a popular server) EDIT: Maybe you can test on low-players servers.

3. Check if the server's versions is it same as yours.

4. Try reinstalling MCPE. You can also make a world backup in iOS: www.youtube.com/watch?v=FxUgOoO1xOE.

5. Try downgrading/updating your MCPE. I don't really know how to in ios, but you can google search it. Maybe jailbreaking it?

6. Try the server at another device. You can get another one like Android and test if it works on that phone.

7. Maybe leave it over than 10 min, if it still doesn't work, 30 min.

8. Test the server at another WiFi hotspot. Maybe going to Starbucks and test if it works or going to your friend's house?