Hi Guys, i faced the same problems as Anek Vorapanya, lame performace with my Xircom real port modem/lan card. I fixed the problem by disabling the autopolarity feature in the csr14 register for the 10baseT mode. The following explanation is taken from the readme file out of the recent windows driver release from Xircom: --- snipp Auto Polarity Correction ------------------------ Certain 10/100 switches (generally those using Broadcom transceivers) implement automatic correction for polarity reversed cables that is not completely compatible with the same correction provided by the CBEM/RBEM. If the network speed is forced to 10Mbps, severe throughput problems may be experienced. To resolve this problem, a new Auto Polarity keyword in the adapter's advanced properties has been added. If needed, the default setting of ON (meaning that the card will compensate for reversed cables) can be set to OFF to disable polarity correction. This will restore normal throughput. snapp --- I plan to add a new option called "autopolarity" for the tulip driver so that the user can specify if the card will use this feature or not. Cheers Thomas P.S.: Any comments welcome |
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