I have an lg ls450/k3 and i got the error 421 during a server game. It gave me this error for no reason that i know of.
MCPE-24757
Error 421
Resolved
Invalid
0
(Unassigned)
Unconfirmed
Phone - Android - LG Other (Specify in description)
6.0.1
1.2.0.11
Retrieved
Thank you for your report!
However, this issue has been closed as Invalid.
Unfortunately we don't accept issues related to External Servers here on the bug tracker, but please add more details if you think this also affects multiplayer over Realms, LAN, or Xbox Live.
I'd suggest contacting the server owner directly or seeking help on the Minecraft forums.
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