62 APPENDIX B: OBTAINING SUPPORT FOR YOUR P RODUCTTroubleshoot Online You will find support tools posted on the 3Com web site athttp://www.3com.com/3Com Knowledgebase helps you troubleshoot 3Com products. This query-basedinteractive tool is located at http://knowledgebase.3com.com and containsthousands of technical solutions written by 3Com support engineers.Access SoftwareDownloadsSoftware Updates are the bug fix / maintenance releases for the version ofsoftware initially purchased with the product. In order to access these SoftwareUpdates you must first register your product on the 3Com web site athttp://eSupport.3com.com/First time users will need to apply for a user name and password. A link tosoftware downloads can be found at http://eSupport.3com.com/, or under theProduct Support heading at http://www.3com.com/Software Upgrades are the software releases that follow the software versionincluded with your original product. In order to access upgrades and relateddocumentation you must first purchase a service contract from 3Com or yourreseller.Telephone TechnicalSupport and RepairTo enable telephone support and other service benefits, you must first registeryour product at http://eSupport.3com.com/Warranty and other service benefits start from the date of purchase, so it isimportant to register your product quickly to ensure you get full use of thewarranty and other service benefits available to you.When you contact 3Com for assistance, please have the following informationready:■ Product model name, part number, and serial number■ Proof of purchase, if you have not pre-registered your product■ A list of system hardware and software, including revision level■ Diagnostic error messages■ Details about recent configuration changes, if applicableTo send a product directly to 3Com for repair, you must first obtain a returnauthorization number (RMA). Products sent to 3Com, without authorizationnumbers clearly marked on the outside of the package, will be returned to thesender unopened, at the sender’s expense. If your product is registered and underwarranty, you can obtain an RMA number online athttp://eSupport.3com.com/. First time users will need to apply for a user nameand password.Contact Us 3Com offers telephone, e-mail and internet access to technical support and repairservices. To access these services for your region, use the appropriate telephonenumber, URL or e-mail address from the list below.