To ensure the most efficient use of your time and resources, we strongly encourage you to reference your corresponding product FAQs, installation and user guides, and additional troubleshooting documentation, including drivers and firmware updates when applicable. If, after referencing your support information, you believe your product is mechanically defective or if you believe the solution requires the assistance of our Technical Support Team, locate your product category and phone number below (for residents in the United States and Canada only).

Note: If you believe your product is mechanically defective, you must contact our Technical Support Team to receive a Return Merchandise Authorization (RMA) number. Return instructions are listed below and should be followed if an RMA is issued. DO NOT send in products without an RMA.

Support Number
Consumer Products (USB, NAS, Tablet Accessories) (888) 428-9450
Business Class Products (Courier Modems & Gateways, Console Servers, Network Taps) (888) 326-6099
Call Director Products: USR4000, USR4005, USR4009 (877) 762-0132


Please refer to Support Contacts if your product or region is not listed here.

Sending your product in for Warranty Service

Once your RMA number has been issued, send your modem to:

USRobotics Returns
1300 E. Woodfield Rd. Suite 506
Schaumburg, IL 60173

Note: Products sent to this address without an RMA number will be returned.

If your product requires non-warranty service, you will be notified upon issuance of the RMA.

Consumer Products (USB, NAS, Tablet Accessories)