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Windows XP dropping DOS print shares

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by john mac

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We have a DLink DP303 with 2 * Epson LQ-300's and an HP Laserjet 1100 connected to it.

Our central networked application is MS-DOS based and we have mapped LPT1,2 and 3 to the 3 printers on a PC running XP Home Edition that we have just added toour peer-to-peer Windows-based network (TCP/IP static addressing).

The XP PC has a DLink 530TX card set to autodetect network speed. If we run it at 10M Full Duplex all is OK (though network apps appear slow). Running at 100M Full duplex the DOSport mapping is dropped i.e. status either shown as either unavailable or disconnected when shares are viewed via net use.

We have swapped network cards, changed cables, re-built the networking on it etc.etc. Windows 98 PC's appear to have no problem. Any help is greatly appreciated.

2 replies

by judds

I have a couple of suggestions for you.
First, double check your wireing. Really look at the ends ususally pin 8 on the rj45 end is not crimped all the way. double check the twists too. make sure all the wires are ok. the next suggestion is go to your device manager and network card properties (on xp) and make sure power management on the nic is turned OFF. I have seen the same problem under windows 2000. It was a server doing the same thing. if you need any other help let me know.

by john mac

Thanks for the comments Judd. We have replaced the patch lead (direct to the hub)twice and replaced the NIC. Shares aren't dropped when the card speed is set to 10Mb but performance on other apps is too poor to leave it there. Power management on the NIC is already off (we tried that earlier). We may apply XP SP2 (jury still seems to be out and it looks unlikely to make any difference). We have implemented a workaround - icon on the desktop runs a DOS batch job that destroys then re-creates theshares whenever one drops out. You can only imagine how impressed the client is!

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