diff -u 2.4/drivers/net/tulip/pnic.c build-2.4/drivers/net/tulip/pnic.c
--- 2.4/drivers/net/tulip/pnic.c	Fri Feb 16 11:17:03 2001
+++ build-2.4/drivers/net/tulip/pnic.c	Fri Feb 16 11:18:08 2001
@@ -84,7 +84,7 @@
 		tp->full_duplex_lock;
 
 	new_csr6 = tp->csr6;
-	if (negotiated & 0x038)	/* 100mbps. */
+	if (negotiated & 0x0380)	/* 100mbps. */
 		new_csr6 &= ~0x00400000;
 	 else
 		new_csr6 |= 0x00400000;