I have around 200 of these grandstream GXP 1405 phones and currently 8 of them now die when I a plug a hp thin client into them. They were working yesterday, but when I came in this morning, they no longer work. They just either A.) Power down. Or B.) Power cycle continually. I've tested all of the cables. They are totally fine, they work. I've tested my switch, that works. I just don't know why all of a sudden this is happening. I have a video I am going to accompany to this showing it in action when I have a wifi-network I can use, but until then that is the best way I can describe it. Can anyone help me?
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