The portable wifi will be broken because the current output of the charging treasure is unstable, when the voltage fluctuation of the portable wifi will lead to its automatic power failure, while the use of too much USB devices may also lead to current instability to avoid this situation, you can use a more stable charger to charge, and minimize the use of multiple USB devices at the same time. In addition, some brands of portable wifi products themselves have disconnection problems, need to contact customer service or replace the product to solve.