diff --git a/networking/udhcp/arpping.c b/networking/udhcp/arpping.c
index ab4c6d2..7cc2be4 100644
--- a/networking/udhcp/arpping.c
+++ b/networking/udhcp/arpping.c
@@ -79,7 +79,7 @@
 
 	/* wait arp reply, and check it */
 	tm.tv_usec = 0;
-	time(&prevTime);
+	prevTime = uptime();
 	while (timeout > 0) {
 		FD_ZERO(&fdset);
 		FD_SET(s, &fdset);
@@ -97,8 +97,8 @@
 				break;
 			}
 		}
-		timeout -= time(NULL) - prevTime;
-		time(&prevTime);
+		timeout -= uptime() - prevTime;
+		prevTime = uptime();
 	}
 	close(s);
 	DEBUG(LOG_INFO, "%salid arp replies for this address", rv ? "No v" : "V");