3Com Service Contracts
Advance Hardware Replacement

Request an advance hardware replacement by calling your regional 3Com support telephone number to open a case. To minimize network downtime, a technical support engineer may attempt to diagnose your network issue by telephone. When you need advance hardware replacement, you will be given an estimated arrival time for your replacement product and a return material authorization (RMA) number.

Returning Your Defective Product to 3Com

Return shipping instructions will be included in the box containing your advance hardware replacement.

Defective products must be returned to 3Com within 15 calendar days after you receive the replacement product.

When calling for contract support please have the following information ready for our Customer Service Representative:
  • Master Contract number
  • Name and address of the company where the product is located
  • Product part number, version, and serial number
  • Description of the problem
  • Complete error message

3Com Support Telephone Numbers

North America

For Technical Support call 1-800-876-3266

Latin America

Brazil 0-800-120-001
Mexico 1-800-849-3266
Colombia 571-592-5000
Argentina 0-800-443-266
All other countries AT&T local number + 1-800-998-2112
  Click here to locate AT&T local number


Europe, Middle East and Africa

Click here to view telephone numbers

Asia Pacific

Click here to view telephone numbers

8x5 Service Contracts

For 8x5 Next-Business-Day service contracts you may request advance hardware replacement from 9:00 A.M. - 5:00 P.M., local time, Monday - Friday, excluding public holidays.

Requests for Next-Business-Day hardware delivery must be received by 4:00 P.M. local time.

24x7 Service Contracts

For 24x7 service contracts you may call for assistance 24 hours a day, seven days a week, including holidays.


1-800-NET-3COM