@solomoncyj One thing that can cause this is if the usb drive is pulling to much power for the router. Use a powered hub. Be sure you are using the disk formats that are supported by that router....

@RaGo8426 I think you need to contact the company that set this up. That is not a normal home setup.

@tizzo If you click on the model in your orginal post (or google the model number), the TP Link router info will show up, then click on support, then you should see a link for the user quide. Note...

@tizzo What format is the drive? The router does not support all formats.

@tizzo It may be the drive is pulling to much power. Consider using a power hub. Does a usb stick work okay?

@Darkwonder some devices will not connect to a new router and you need to delete (forget) the network on the device then reset it up. Apple happens a lot as does others. I think it is a securiy thing.