NetBSD Problem Report #15073

Received: (qmail 1042 invoked from network); 28 Dec 2001 07:54:13 -0000
Message-Id: <>
Date: Fri, 28 Dec 2001 02:54:12 -0500 (EST)
From: Michael Wolfson <>
Subject: incorrect date prevents network from working
X-Send-Pr-Version: 3.95

>Number:         15073
>Category:       port-macppc
>Synopsis:       incorrect date prevents network from working
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    port-macppc-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Dec 28 07:55:00 +0000 2001
>Last-Modified:  Mon Jul 05 07:15:59 +0000 2004
>Originator:     Michael Wolfson
>Release:        NetBSD-1.5.2

PowerMacintosh 7300, NetBSD 1.5.2 release

System: NetBSD costello 1.5.2 NetBSD 1.5.2 (COSTELLO) #1: Sat Dec 15 20:00:44 EST 2001 mw@costello:/usr/nosrc/sys/arch/hp300/compile/COSTELLO hp300

If date is set too old, then network doesn't work.  No errors, it just 
doesn't transmit or receive packets.  
% ping
PING ( 56 data bytes
---- PING Statistics----
0 packets transmitted, 0 packets received,

Several users have reported this on different platforms (PowerBook G3, 
PowerMacintosh 7300).

This situation might arise if a user "zaps PRAM" on their mac, which will 
clear out the current date/time.  Also, when motherboard batteries die, 
the date is reset to either 1901 or 1956 (depending on model).

date 190101010101

Prevent bogus dates?
State-Changed-From-To: open->feedback 
State-Changed-By: mrg 
State-Changed-When: Fri Apr 2 14:19:24 UTC 2004 
michael, does this problem still occur? 

From: Michael Wolfson <>
Subject: Re: port-macppc/15073
Date: Wed, 9 Jun 2004 23:10:38 -0700

 On Apr 2, 2004, at 6:19 AM, wrote:

 > Synopsis: incorrect date prevents network from working

 > michael, does this problem still occur?

 Sorry it took so long to test.  Yes, the problem is still there.  I  
 netbooted a PowerMac 8500 with current date.  No problems.

 Set date to 1904, can still contact my home server (NFS, DNS, etc), but  
 nothing else.
 Set date to today, everything works fine.

 NetBSD  2.0_BETA NetBSD 2.0_BETA (GENERIC) #0: Wed Jun  9 16:15:51 UTC  
 2004  aut 
 sys/arch/macppc/compile/GENERIC macppc

    -- MW

State-Changed-From-To: feedback->open 
State-Changed-By: mbw 
State-Changed-When: Mon Jul 5 07:15:30 UTC 2004 
Feedback has been provided (e.g. problem still present). 

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