Hello!

I can't connect to My Worlds whenever my wifi is on. I can only play it whenever I turn off my wifi on my phone. I recently found out that when I went to my cousin's house and used their wifi, I can still play, but when I'm in my house playing minecraft pocket edition, I can't! My sibling can play MCPE normally in the house playing it, while I'm having problems..Whenever I enter My World/s, It always says that I am unable to connect to world and I need to connect to my internet connection and try again (see attachment). This has been a problem of mine since November...Please fix this soon.. Thank you!