T ROUBLESHOOTING AND O NLINE H ELP RESOURCES87Are You Still Having Problems?• Review this manual.• Call or visit your modem dealer. They may beable to assist you.• If your dealer can't help you, contact 3ComCustomer Support. When you call, specifyyour modem serial number (found on themodem and on the outside of the box), thesoftware being used, and, if possible, have thecontents of your ATI7 screen available.If You Need to Return theModem to UsContact 3Com Customer Support. If the supportrepresentative determines that you need to returnthe modem, you will receive an SRO (ServiceRepair Order) number. You must have an SROnumber before returning the modem to us. Shipthe unit, postage paid, in a strong box made ofcorrugated cardboard with plenty of packingmaterial. DO NOT send the modem back in theoriginal box. Send ONLY the modem (NOT thepower supply, manuals, CD-ROM, etc.). Includeyour SRO number, name, and address on theshipping label as well as inside the package. Ifpossible, send the package via a courier capableof tracking the progress of the shipment. Ship tothe following address:3ComAttn: RMASRO#6201 W. Oakton, East DockMorton Grove, IL 60053