Unable to join my friend's realms

9 times out of 10, I can't join my friend's realms, and my Xbox live friends can't join my realm That I host. It is really frustrating. It wasn't a problem in 1.0.5 but since 1.0.6 I can't join my Xbox live friend's realms. I wasn't sure if I should submit this to realms or pocket edition, so I'm submitting this bug on both.

to duplicate: accept an invite to a realm - try to join that realm. It says unable to connect.

I am using a Dell Venue 3740 (2014)