yikes! no internet

Linux for blind general discussion blinux-list at redhat.com
Fri May 5 20:05:31 UTC 2017

Hey yall,
This system is command-line only. It does not update unless I tell it to.
It uses static ip. Uses /etc/network/intepfaces.
If I send you the results of ifconfig could you perhaps figure something out.
I can access the desktop via ssh from my ipad, so the pc is connected.
What file or files can I send that would help you analyze the problem?

On May 5, 2017, at 1:06 PM, Linux for blind general discussion <blinux-list at redhat.com> wrote:

My theory is that an ubuntu upgrade broke networking. Do you have auto-updates enabled?

It probably goes without saying but after you power cycle your gateway, you should probably reboot your ubuntu machine too.  And then make sure the cable is well seated on both ends. Even if it's clicked into the jack, there can be enough play to keep it from connecting. After that, you should run linux networking diagnostic tools. Start with ifconfig. Look for an interfaced named something like eno1 or enp30s25 or like that. If you run ifconfig and no interfaces starting with an "e" are listed, then your network interface is busted. Lightning strike maybe? Something like that. If youfind an interface listed, try running dhclient on it, "dhclient -v eno1". If that errors out, it is probably a cable or the gateway. If dhclient does not error out, you will probably have your network back until the next time you reboot. If that is the case, then see if your interface  is listed in /etc/network/interfaces. If it is, then your problem is probably in that file somewhere. If not, then it's in NetworkManager. If your problem is with NetworkManager, then you've got trouble.  NetworkManager is full of bugs. Actually, what you should do then is put your interface into /etc/network/interfaces so NetworkManager will ignore it.

> On 05/05/2017 06:33 AM, Linux for blind general discussion wrote:
> Hi,
> I have rebooted the router-modem combination or gateway as they call it.
> I know internet is working because I am using it with this ipad.
> The ubuntu pc is wired, not wireless. It is possible the cable may have come loose,
> but that would not explain why i can no longer log into the router wirelessly with the ipad
> like I could before.
> Let me go check that cable tho anyway.
> But I don't think thats it.
> On May 5, 2017, at 6:09 AM, Linux for blind general discussion <blinux-list at redhat.com> wrote:
> This is Tony Baechler.
> First, I would reset your router and modem. Unplug both and wait at least 30 seconds. Plug in the router first and wait 30 seconds. Then plug in the modem. If you haven't rebooted in a while, try completely shutting down the machine and rebooting.
> If that doesn't work, try booting the Ubuntu DVD or a rescue disc and see if you have Internet. It could be that your ISP is down and it's a temporary outage. I know this is obvious, but did you pay the bill? If not, maybe they cut you off.
> Can you try with real ethernet? Can you plug an ethernet cable into your machine and the router? Since it suddenly stopped working and you know your router password, I think it's either something with your ISP, a bad router or switch (they wear out) or a bad wireless card. You could also try plugging the ethernet cable directly into your modem and your machine to eliminate the router.
>> On 5/4/2017 11:59 PM, Linux for blind general discussion wrote:
>> Hello,
>> Suddenly my linux desktop has no inteqnet at all. I am doing this email with an ipad.
>> Wifi and the lan seem ok; the ipad has no problem connecting.
>> Where should I begin to find what is wrong?
>> Also i can no longer login to my router with the ipad.
>> I get this error message:
>> Error: ReferenceError: Can't find variable: isQCA
>> The router is an Arris model tg1672g.
>> The pc is a desktop running ubuntu.
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