<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif">I just saw a forum post where Belkin recommended manually setting DNS to see if that solves the problem. Putting all of this together, this is my best guess as to what happened.</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif">1. Routers regularly send heartbeat messages to <a href="http://heartbeat.belkin.com">heartbeat.belkin.com</a></div><div class="gmail_default" style="font-family:tahoma,sans-serif">2. Some routing failure causes quite a few netblocks (but not all) to be unreachable from Belkin's heartbeat server</div><div class="gmail_default" style="font-family:tahoma,sans-serif">3. If the heartbeat fails, something breaks related to DNS handling on the router that does not resolve after a router reset</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif">Very interesting. I don't have enough data yet, but I do wonder if the root cause of this all is a routing problem on Belkin's side.</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif">John</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 7, 2014 at 10:03 AM, John Neiberger <span dir="ltr"><<a href="mailto:jneiberger@gmail.com" target="_blank">jneiberger@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif">I think it was initially suspected to be a firmware upgrade, but I doubt that's the case now. It's interesting to me that there are two seemingly unrelated fixes:</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif">1. Put the IP for <a href="http://heartbeat.belkin.com" target="_blank">heartbeat.belkin.com</a> on a loopback </div><div class="gmail_default" style="font-family:tahoma,sans-serif">2. Manually add working DNS entries to affected PCs</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif">Reports indicate that either fix works, but why? They seem unrelated to one another unless the failing heartbeat messages mess up DNS handling on the router.</div><span class="HOEnZb"><font color="#888888"><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif">John</div></font></span></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 7, 2014 at 9:48 AM, Josh Luthman via Outages <span dir="ltr"><<a href="mailto:outages@outages.org" target="_blank">outages@outages.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Where? I keep reading "bad firmware" problems but everything suggests there is no automatic upgrade and I think we can safely assume resi users didn't upgrade their routers over night.</div><div class="gmail_extra"><span><br clear="all"><div><div dir="ltr"><div><br></div><br>Josh Luthman<br>Office: <a href="tel:937-552-2340" value="+19375522340" target="_blank">937-552-2340</a><br>Direct: <a href="tel:937-552-2343" value="+19375522343" target="_blank">937-552-2343</a><br>1100 Wayne St<br>Suite 1337<br>Troy, OH 45373</div></div>
<br></span><div><div><div class="gmail_quote">On Tue, Oct 7, 2014 at 11:35 AM, John Barbieri via Outages <span dir="ltr"><<a href="mailto:outages@outages.org" target="_blank">outages@outages.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Funny,<br>
<br>
Just saw something about Belkin routers and a botched firmware upgrade.<br>
<br>
I wonder if this is what they meant.<br>
<br>
That being said, it is working fine from Zito Media in Clanton, AL.<br>
<br>
--John<div><div><br>
On 10/07/2014 10:17 AM, Paul Miller via Outages wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On one of my netblocks my subscribers can nolonger ping Belkin. I can ping<br>
<a href="http://heartbeat.belkin.com" target="_blank">heartbeat.belkin.com</a> from my webservers and from subscriber units on a<br>
different netblock.<br>
<br>
Apparently Belkin routers ping the home base every couple seconds to determine<br>
the correct color of the Internet light on the router (orange or blue *sigh*).<br>
Worse, when it can't ping the Belkin site the router seems to pack up and<br>
redirect my subscribers to their router configuration page.<br>
<br>
I found this pretty easy to work around. I simply DNATed the pings intended<br>
for <a href="http://heartbeat.belkin.com" target="_blank">heartbeat.belkin.com</a> to one of my local nameservers and that seems to get<br>
them back online. It's a silly workaround, but if anyone else is seeing all<br>
the Belkin routers on their network pack up, this could be why.<br>
<br>
-Paul<br>
<br>
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