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Known Problems with Specific ModemsUSR Sportsters get slower and slower, or experience long pauses, or disconnect
USR Sportsters get slower and slower, or experience long pauses, or disconnectThis is the x2 version of Spiral Death Syndrome. The fix in most cases is to add S15=128 to the init string to disable V.42 hardware error correction. It may also be necessary to add &K0 to the init string to disable V.42bis hardware data compression, though this should be a last resort, as performance will suffer when downloading non-compressed files.
USR Modem Update Wizard crashes or won't work in Windows The Modem Update Wizard requires that the Windows date format be set to mm/dd/yy (month/day/year), which is the American date format. You can change this setting in the Windows 95 Date and Time control panel.
"BLOCK ERASE ERROR 27" while flashing Courier ROMs Your Courier has a flash ROM with a defect. You will need to return the modem to U.S. Robotics for a replacement flash ROM. You can return the modem to a working state by reloading the EPROM with 12396.exe.
Poor connects with fixed-datapump K56flex units.Early Rockwell datapumps performed poorly, and often could not connect at speeds higher than 34K. These datapumps were non-upgradeable (non-flashable), so the only fix is to send the modem back to the manufacturer for replacement. Most of these modems were manufactured in March and April, 1997, but most have remained in the retail channel, so they were available for purchase much later. The easiest way to determine if you have one of the affected modems is to issue an ATI3 command in a terminal program. If the version number includes the letters "DSP", you have one of the original, non-upgradeable datapumps. Another indication of a non-upgradeable datapump is that the ATI6 response includes the string "47BA". In either case, you should return your modem for a replacement. At one time, the Troubleshooting Guide identified the non-upgradeable datapumps by the version number seen by ATI3. This turned out to be problematic. For instance, V0.519 was upgradeable, while V0.520 was not. Using the letters as an indicator has proven to be more reliable. |
