<div dir="ltr">Just work your way up the network osi model in troubleshooting. Everyone should learn some networking these days, one way or another (speaking as a bofh network guy that deals with non-networking app and developers folk commonly - don't be part of the problem).<div><br class="gmail-Apple-interchange-newline">####<br></div><div>## Layer 1/2, got link? note "state"</div><div><br></div><div>> ip link</div><div><br></div><div>## If no link, check cable plugged in for blinky lights</div><div><br class="gmail-Apple-interchange-newline">####<br></div><div>## Layer 3, got ip?</div><div><br></div><div>> ip addr</div><div><br></div><div>## If no ip, check dhcp on the network</div><div>## Optional: Set static ip for temporary troubleshooting, insert proper subnets here:</div><div><br></div><div>ip addr add 192.168.1.100 255.255.255.0 dev eth0</div><div>ip route add default 192.168.1.1</div><div><br class="gmail-Apple-interchange-newline">####<br></div><div>## Layer 3, verify arp to gateway</div><div><br></div><div>ip nei | grep `ip route | grep default | awk '{ print $3 }'`</div><div><br></div><div>## If no arp for gateway, check router/switch network</div><div><br class="gmail-Apple-interchange-newline">####<br></div><div>## Layer 3, ping the gateway (whatever that is for you)</div><div><br></div><div>ping `ip route | grep default | awk '{ print $3 }'`</div><div><br></div><div>## If no response, check prior steps again</div><div><br class="gmail-Apple-interchange-newline">####<br></div><div>## Layer 3/4, verify resolv.conf dns resolution and life beyond default route</div><div><br></div><div>ping <a href="http://google.com">google.com</a></div><div><br></div><div>## If no dns life outside router, check the router has connectivity to the internet</div><div><br></div><div>####</div><div>## pull up a browser to <a href="http://google.com">google.com</a> to test layer 4-7 stuff</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jan 3, 2017 at 9:10 AM, Carruth, Rusty <span dir="ltr"><<a href="mailto:Rusty.Carruth@smartm.com" target="_blank">Rusty.Carruth@smartm.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I’ll guess that DHCP server on your router was dead.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">But to know for sure - are all your systems using DHCP, or are some using static?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">IF your windows side is set for static, and the Linux side is DHCP, then this would be expected - windows works, linux doesn’t.<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">But I’m just guessing (however, I had a router once that would lose its DHCP server on a semi-regular basis. I considered putting it on some sort of auto-reboot
device (power cycle it once a day) - finally just replaced the stupid thing ;-)<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Rusty<u></u><u></u></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> PLUG-discuss [mailto:<a href="mailto:plug-discuss-bounces@lists.phxlinux.org" target="_blank">plug-discuss-bounces@<wbr>lists.phxlinux.org</a>]
<b>On Behalf Of </b>Michael<br>
<b>Sent:</b> Monday, January 02, 2017 1:42 PM<br>
<b>To:</b> PLUG<br>
<b>Subject:</b> Re: Offline<u></u><u></u></span></p>
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<p class="MsoNormal">I'm back. I just had to reset the router..... but why would that work if windows still worked?<u></u><u></u></p>
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<p class="MsoNormal">On Mon, Jan 2, 2017 at 11:31 AM, Michael <<a href="mailto:bmike1@gmail.com" target="_blank">bmike1@gmail.com</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal">The TV server, also linux, is still online. It is part of the same network.<u></u><u></u></p>
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<p class="MsoNormal">On Jan 2, 2017 11:22 AM, "Michael" <<a href="mailto:bmike1@gmail.com" target="_blank">bmike1@gmail.com</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal">I am now offline in my Linux box. Windows is up and happy and the modem is up and happy too. Heck, the network connection shows I'm connected too. I don't know what to do. What led up to this is I was trying something with th faulty SD
card. .. grated said to run, chkdsk /f , twice so I boot into Windows to do that ,couldn't do it though. Then when I boot back to Linux to reformat it there was no connectivity.<u></u><u></u></p>
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<p class="MsoNormal">-- <u></u><u></u></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">:-)~MIKE~(-:</span><u></u><u></u></p>
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