help please !!!!! something wrong with my wifi hotsopt

i recently realize that my wifi hotspot in my phone doesn't work at all the other devises can connect to my wifi hotspot and can send to them file and everything but can't receive any thing from other devises, i already check the hotspot settings and everything it's ok i don't know why can't receive files ,,,,,,, please anyone know why i should do to fix it just tell me pls

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