Minecraft Crashe while connected to MY Wi-Fi

So there is a proble with my Minecraft, and its not only on my phone, is on every phone that have Minecraft PE on it. The problem is when i am connected to MY Wi-Fi and ONLY on my Wi-Fi and try to open a world its says Generating terrain and then Minecraft stops. But if I am connected on my Mobile Data or ANY other Wifi there is no probem. Its not my phone, even my friends cant connect to their words with my Wifi. I restarted and rebooted the wifi but is the same problem. Minecraft has to be fixed. Please fix this issues because I can no longer play Minecraft on my phone.