Peppermint OS Community Forum

Support => Networking => Topic started by: cfx795 on October 20, 2017, 07:15:15 pm

Title: No ethernet connection. (SOLVED)
Post by: cfx795 on October 20, 2017, 07:15:15 pm
So I just fired up a new computer build with (mostly) new components. I loaded Peppermint 6. The problem I have is that it it does not seem to recognize my modem or any connectivity. Shows "not connected" to the internet. I have the ethernet cable connected at both ends and it's lit up at both ends, but the desktop indicators show no connectivity to the internet.

It's a Motorola SBG6580 Gateway Modem.

Probably something to do with a modem setting. I'm not sure I've ever used the ethernet ports on this modem, just the wireless, which seems to work fine.

Any ideas? Thanks.
Title: Re: No ethernet connectivity.
Post by: VinDSL on October 20, 2017, 08:13:54 pm
Don't mean to be rudimentary, but make sure you're plugged into the LAN ports. Some routers/modems have ports marked WAN, Internet, and so forth, and those are usually for some sort of proprietary nonsense, that I never have had any success using. I've accidentally done this many times, and it results in no connection.

If you've already tried using the LAN ports only, please ignore the above  ;)
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 20, 2017, 08:30:54 pm
Well they have a little emblem there that I take to mean they are LAN ports. But aside from that there's nothing else, just numbered 1, 2, 3 and 4. None of them seem to be working. Well, they light up when I plug in the cable that goes to the port on the motherboard, but the desktop indicator just shows no connection.
Title: Re: No ethernet connectivity.
Post by: PCNetSpec on October 20, 2017, 08:54:19 pm
Does any other PC plugged into the router work ?

Have you tried restarting the router ?

And have you tried another ethernet cable ?

Because first we need to discover if the problem is the router, the cable, or the PC.

[EDIT]

Also, do you know the local IP address of your router ? .. probably something like 192.168.0.1 or similar.

and what's the output from:
Code: [Select]
ifconfig
and
Code: [Select]
nmcli device status
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 20, 2017, 09:03:58 pm
Does any other PC plugged into the router work ?

Have you tried restarting the router ?

And have you tried another ethernet cable ?

Because first we need to discover if the problem is the router, the cable, or the PC

[EDIT]

Also, do you know the local IP address of your router ? .. probably something like 192.168.0.1 or similar.

Right. Yes, I have tried restarting the modem/router (it's a combination - "gateway modem" I think they call it) and yes, I do have the IP address and I'm logged into the router from my Chromebook. Yes, I have tried another ethernet cable. But I have yet another cable that I'll try, also... I don't have another PC or other device with a LAN port. I'll try the other cable. Thanks.

I've tried three different cables, I don't think it's the cable. My hunch is that it's the modem.
Title: Re: No ethernet connectivity.
Post by: PCNetSpec on October 20, 2017, 09:09:39 pm
So you can log into your routers web interface (settings) from a web browser (on the PC that's connected via ethernet cable) ?

What is your routers local IP ?  <-- giving this is not a security risk.
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 20, 2017, 09:14:14 pm
So you can log into your routers web interface (settings) from a web browser ?

What is your routers local IP ?  <-- giving this is not a security risk.

Right. Real close to what you suggested it might be: 192.168.100.1   I'm logged in from my Chromebook, the wireless seems to work fine, but not the LAN ports. I have the results from the peppermint terminal when I input ifconfig, but it's a bit long, do you need the whole thing?

I don't think I can log into the router from the browser on the machine connected to the LAN. I get nothing.
Title: Re: No ethernet connectivity.
Post by: PCNetSpec on October 20, 2017, 09:17:17 pm
On the PC that's connected via ethernet cable, do you get any ping returns from:
Code: [Select]
ping -c 5 192.168.100.1
?

Or does it give you 5 lines of "host unreachable" ?
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 20, 2017, 09:20:23 pm
On the PC that's connected via ethernet cable, do you get any ping returns from:
Code: [Select]
ping -c 5 192.168.100.1
?

Or does it give you 5 lines of "host unreachable" ?

Just one line: Network is unreachable.
Title: Re: No ethernet connectivity.
Post by: PCNetSpec on October 20, 2017, 09:25:51 pm
and you're POSITIVE 192.168.100.1 is the routers IP ?

You can check this on your Chromebook by entering

192.168.100.1

in the Chrome address bar and hitting enter

Does this take you to the routers login page ?
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 20, 2017, 09:30:43 pm
and you're POSITIVE 192.168.100.1 is the routers IP ?

You can check this on your Chromebook by entering

192.168.100.1

in the Chrome address bar and hitting enter

Does this take you to the routers login page ?

Well, I am positive that 192.168.100.1 takes me to a router login screen, yes. I presume it's mine? Yeah the MAC address is the one on my router. Must be mine...
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 20, 2017, 09:37:54 pm
I can log into it. What I mean is that, upon logging into it, under "status" that's the model# of my modem, and the serial number and mac address all match. Yeah, I'm pretty sure that's my modem.
Title: Re: No ethernet connectivity.
Post by: PCNetSpec on October 20, 2017, 09:50:42 pm
Okay I'm Googling a TON of reports of similar weirdness on that model of router.
http://lmgtfy.com/?q=SBG6580+ethernet+ports+not+working

Some people say restarting the router with the coaxial cable removed kicked the ethernet ports into life, others suggest a device reset works.

My problem is I can't advise either because I have no idea if your ISP would bitch about removing the coaxial cable (probably not, but I just don't know) .. and I have no idea if resetting the router to defaults would require you to know a login/password to reconnect afterwards.

So I'm not sure how much help I can be here
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 20, 2017, 09:58:23 pm
Okay I'm Googling a TON of reports of similar weirdness on that model of router.
http://lmgtfy.com/?q=SBG6580+ethernet+ports+not+working

Some people say restarting the router with the coaxial cable removed kicked the ethernet ports into life, others suggest a device reset works.

My problem is I can't advise either because I have no idea if your ISP would bitch about removing the coaxial cable (probably not, but I just don't know) .. and I have no idea if resetting the router to defaults would require you to know a login/password to reconnect afterwards.

So I'm not sure how much help I can be here

Well that's alright. It's late here and you're sort of confirming what I suspect, which is that it's the router, or the ports on the router or something. I've had other modems/routers before this and they all worked fine with my hardware/software etc.  I did try a reset, but not with the coax removed. I might try that. I was actually thinking I might have to bring my service provider in on this. This isn't the device they issued, I got it... I don't remember, but I suspect I've never even used the LAN ports on this thing, just the wireless. Thanks. I'll keep you posted if I get it.
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 21, 2017, 07:32:55 am
So... I've been on the line (live chat) with my ISP. Of course, this representative thinks it's something to do with my computer or motherboard or something. Personally, I suspect the motherboard is fine and that, rather, it's the damn gateway modem that everyone else seems to be having issues with. He asked if I had properly installed all the ethernet drivers, to which I replied that I hadn't installed any drivers. Well, that could be it, he said. (I don't think it is...)

Of course, I don't have a disc drive. I could get one, but then isn't this disc that came with the motherboard a Windows file?  Or is it? I looked on the ASRock (motherboard) site and downloaded something called the "App Shop" but that does look to be an .exe file which probably doesn't help me much. Furthermore, I think it's a waste of time, I think it's the modem.

So. I don't know. I've only had this gateway modem since February of this year, and I don't think I've ever even tried to use any of the LAN ports, just wireless. Before that, I had just the basic motorola modem and separate wireless router, which, for all the wires and cables, worked flawlessly with my hardware, including desktop computer and LAN ports and etc, etc.

I'm not sure exactly what to do next, of course I could talk to another rep with my ISP and get an entirely different answer, that's always a possibility. I was trying to get to the point where they might send a technician out and bring a new modem, even if I have to lease the thing, that's fine.

Or, I could just go online and order a new modem. I would be inclined to order separate devices - a modem, and then a wireless router, which is the setup that worked well for me before, until I decided gee-whiz what I really need is a modem/router combo. One power cord, and one-fewer ethernet cable... yee-haw! (stupid!)

I dunno. I'm close to ordering a new modem. But I probably haven't exactly used the scientific method to eliminate all other potential conflicts or issues.

btw: I never really thought it was any problem with the OS. I had this Peppermint 6 usb, I hit F2 on the keyboard and... I don't think I ever really even had to do anything, it sort of loaded itself, very smooth until I got to the internet part. So I mean, the computer setup was pretty seamless, everything booted, loading the OS was almost automatic. I don't think I even had to change any settings on the motherboard or anything. I'm just sort of stuck on this ethernet thing is all.
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 21, 2017, 08:49:14 am
Just an update. Contacted my ISP and got a completely different response from this agent, than the other one, earlier. Her take was: well, it would appear to be something wrong with the gateway modem. And I said yes, I agree. And then she said well we offer free modems, but not gateways. I said that's fine, I can set up my own wireless network, a wireless router can be had for relatively cheap, and I've have better luck with separate devices, as opposed to these "gateway modems." She said: yes, that's why we've also gone to separate devices...

So she arranged so that I can pick up this new modem down at the Charter Communications office, yet today. I'm trying to get someone to give me a ride down there later this morning. If this works, I'll order a wireless router. Hopefully this works. Thanks for your help, Mark. Or should I say "PCNetSpec?"
Title: Re: No ethernet connectivity.
Post by: PCNetSpec on October 21, 2017, 10:04:37 am
Great news, I think the new two separate device setup is a better way of doing things .. though it would be nice if the ISP provided both.

Quote
Thanks for your help, Mark. Or should I say "PCNetSpec?"

I'm happy with either my mate :)
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 21, 2017, 05:25:17 pm
Yet another update... still working on this thing. I have the new modem, and sadly I have the same issue with both modems. One thing I notice is that in the mobo BIOS there's something called "internet flash" and you click on it and I guess it updates the... whatever. Internet thingy? Well I guess updates the drivers. Anyway, if I disconnect the ethernet cable from the mobo, and click on this internet flash, it says "no internet connection" and when I reconnect it it flashes the BIOS 10% 20% etc... your internet connection is up to date or maybe it says your BIOS is up to date, I don't remember. The motherboard bios seems to be accessing an internet connection.

After getting nowhere with the second modem, I began to think that the motherboard was defective, but now I'm wondering if maybe the mobo is just not playing nice with P6 - or at least this installation of P6. I'm not sure I can vouch for the integrity of the installation medium. I'm thinking about getting a bootable usb from this Shop Linux Online. Maybe Ubuntu 17.04 or Debian or something. Ubuntu strikes me as a little more user-friendly. Peppermint is pretty much based in Ubuntu, isn't it?
Title: Re: No ethernet connectivity.
Post by: PCNetSpec on October 21, 2017, 06:10:45 pm
But I thought you said it wouldn't connect to a Chromebook via ethernet either ?
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 21, 2017, 06:38:46 pm
But I thought you said it wouldn't connect to a Chromebook via ethernet either ?

Well not unless I misspoke, or perhaps misunderstood something you had asked; the Chromebook doesn't have any ethernet port. Just wireless. By the way, Peppermint is still my preferred distro, I just thought the bootable usb would make my life easier in my present sort of predicament.
Title: Re: No ethernet connectivity.
Post by: PCNetSpec on October 21, 2017, 09:37:55 pm
Have you no other PC you can test the ethernet ports of thee router with ?
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 22, 2017, 12:54:11 am
Have you no other PC you can test the ethernet ports of thee router with ?

Right. This is all I've got. The Chromebook and this new build.
Title: Re: No ethernet connectivity.
Post by: PCNetSpec on October 22, 2017, 09:31:01 am
i't going to be impossible to know for sure whether it's the router ports then.

Have you another old router you can attach the Peppermint PC to (don't worry about attaching it to the net), so you can see if it picks up an IP via its DHCP server and can ping the router ? .. this would at least prove whether the network card in the Peppermint PC works.
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 22, 2017, 10:52:28 am
i't going to be impossible to know for sure whether it's the router ports then.

Have you another old router you can attach the Peppermint PC to (don't worry about attaching it to the net), so you can see if it picks up an IP via its DHCP server and can ping the router ? .. this would at least prove whether the network card in the Peppermint PC works.
No spare router, at the moment sorry. I might get one for the spare modem (probably spare) I acquired from my ISP over the weekend. Insofar as spare-this and spare-that for testing, I'm sort of stuck at the moment. Eventually I will probably have my own little computer workshop, here, but that's not where I'm at right now. I ordered an Ubuntu 17.04 USB from the Linux Online Store last night, I'm going to see if that works, priority mail, should be here by mid-week. If that doesn't work, I might order that router and try the pinging bit. Btw, I did have this *new* modem connected for a very short while yesterday, and got the same non-connectivity with the new-build PC as with the other gateway modem. When I realized it still wasn't working, I had them reconnect the gateway modem, since I need it if I'm to have any internet connection with my Chromebook.

Anyway. I think I'll get it, it seems sort of like a process of elimination. At least I still have internet on the Chromebook, so I'm not completely stuck. ;) Thanks for all your help and ideas, and taking interest in what must seem a rather strange predicament...

Oh yeah. I did also create support ticket with ASRock (the mobo mfctr). I don't know what fruit that might bear. No response yet, but I just created the ticket yesterday. Maybe I'll have the thing fixed before I hear from them. We shall see.
Title: Re: No ethernet connectivity.
Post by: PCNetSpec on October 22, 2017, 01:16:15 pm
If the separate modem wouldn't connect to the router, it's highly likely it's the router at fault .. but likely isn't the same as proof :(
Title: Re: No ethernet connectivity.
Post by: alynur on October 22, 2017, 06:50:17 pm
Hi cfx795, sounds like you're in quite the pickle. Is there anyone close by that you could take the tower to, a friend or neighbor, to connect to their modem? This may be the only way to rule out a bad mother board. I've had thunderstorms with lightning take out my network card. Short of that, a usb wifi dongle could prove the card or modem condition, providing you get a good dongle.
Title: Re: No ethernet connectivity.
Post by: PCNetSpec on October 22, 2017, 06:58:38 pm
Wifi dongle won't tell us if the ethernet ports on the router or PC are at fault ;)

Though it would certainly work around it.
Title: Re: No ethernet connectivity. (SOLVED)
Post by: cfx795 on October 26, 2017, 04:31:49 pm
I received an Ubuntu 17.04 USB on Wednesday from Shop Linux Online, loaded Ubuntu, and it has since updated to 17.10. I have an ethernet connection, and I tried Debian also, and no further further problems getting an internet connection. Maybe I had a corrupted iso and installation of P6. I think this issue is resolved, so I'm going to indicate that in the subject heading. I'm having another issue, but I think I should create a new thread. Thanks.
Title: Re: No ethernet connectivity.
Post by: PCNetSpec on October 26, 2017, 05:29:05 pm
It's possibly a kernel regression in whatever kernel PM6 has .. you could always try a later kernel.

Have youj tried PM7 or PM8 ?
Title: Re: No ethernet connectivity.
Post by: cfx795 on October 26, 2017, 06:31:20 pm
Yeah I'm running PM7 now, no problems. Having a rough time installing PM8, but that's a separate issue, not to do with the LAN port or internet. Discussing it in a separate thread - as you know. But really no further problems with the LAN/internet issue.