Ban Hammer keeps happening each time

So my friend is having issues with Halo 5, each time she loads halo 5 and plays a game it kicks her out and now she gets banned for it plus she waits the ban hammer strike, and plays again then boom banned again. Can some one help with this issue?

All ban-related questions and discussion should be directed to the pinned official ban thread in the support forum:
https://www.halowaypoint.com/en-us/forums/e0d9938206f04a598ce84f2c8cadce02/topics/the-official-halo-5-why-was-i-banned-thread/19fa6556-e0b1-4248-b817-b3a99d0af5bf/posts