[Solved] Cannot connect to the internet

[therealrobojock]

Hi,
I don't know why but certain distro's including mint cannot connect to the internet on my machine. It connects to the network fine and i can access 192.168.1.1 fine but it i open the browser it times out the page. Older versions of mint used to work on the machine without problems.

This is the motherboard i have in the machine and this is the router i connect to. For some or other reason these distros (Manjaro, Opensuse and Windows) work with the current setup out of the box without extra configuration, but i prefer to use linux mint.

[kc1di]

Hello therealrobojock,
Could you go to a terminal and type these command and post the output here - thanks.

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inxi -Nn

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iwconfig

[therealrobojock]

inxi -Nn results

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Network:   Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           driver: r8169
           IF: enp1s0 state: up speed: 100 Mbps duplex: full
           mac: 40:8d:5c:4d:fd:8a

iwconfig results

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enp1s0    no wireless extensions.

lo        no wireless extensions.

[kc1di]

please post the output of

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uname -r

Also you may find this page helpful. This is a known problem and it is unfortunately not fixed in ubuntu 16.04 which mint is based upon so you'll have to do the fix yourself. https://medium.com/@lgobinath/no-ethern ... e2779dc9b8

[therealrobojock]

uname -r results

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4.10.0-38-generic

[therealrobojock]

According to link you gave towards the end there is an updated solution, the thing is how do i do step 1. without an internet connection

Step 1

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sudo apt-get install build-essential linux-headers-$(uname -r)

[kc1di]

Follow the steps on the web page I posted in previous post to manually install r8168 driver and blacklist r8169 driver.
It should work for now. Sorry it's so difficult in Mint/Ubuntu. But that is just the way things are at present

You may have to download the correct driver from here. https://packages.ubuntu.com/de/xenial/a ... s/download using another computer.
then save it to a flash drive or cd and install it with this command:

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sudo apt install PATH_TO_THE_DEB_FILE

reboot see if it connects.

[therealrobojock]

I have done as told, blacklisted the r8169 driver and installed the .deb file. Rebooted a few times and it still doesn't work r8169 keeps loading

[JeremyB]

Post results for

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lspci -nnk | grep -iA3 net

[therealrobojock]

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01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
	Subsystem: Gigabyte Technology Co., Ltd Motherboard [1458:e000]
	Kernel driver in use: r8169
	Kernel modules: r8168

[kc1di]

try this command the reboot :

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 sudo  'echo blacklist r8169 >> /etc/modprobe.d/blacklist.conf'

[Termy]

I would have suggested that you try a supported kernel version. 4.10 is no longer supported and therefore not recommended, AFAIK. (please correct me if I'm wrong) You could try 4.4, or, if you're not a VirtualBox user (or are happy downloading it from the website) you can use 4.13. Another reason I would suggest not using 4.10 is that 4.4 and 4.13 are getting Spectre and Meltdown patches, whereas 4.10 and 4.8 are, from what I'm told, not.

Try opening a terminal and running sudo modprobe -r r8169 to temporarily disable that module, then, if the usual way you connect doesn't work, try dhclient to (hopefully) get your Internet rolling. This is more of a test than anything.

[therealrobojock]

try this command the reboot :

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 sudo  'echo blacklist r8169 >> /etc/modprobe.d/blacklist.conf'

This does not work, it gives me an error of command not found or something like. The command from the guide sudo sh -c ‘echo blacklist r8169 >> /etc/modprobe.d/blacklist.conf’ works and if i cat /etc/modprobe.d/blacklist.conf it shows at the bottom blacklist r8169

Try opening a terminal and running sudo modprobe -r r8169 to temporarily disable that module, then, if the usual way you connect doesn't work, try dhclient to (hopefully) get your Internet rolling. This is more of a test than anything.

This also does not work

What i don't understand is if i plug in a different modem it works, if i switch back to the modem i want to use it doesn't work. Distro's (like debian, opensuse leap 42.3) that use older kernels like 4.9 it works, if it is a newer kernel 4.10 and up it doesn't work

[kc1di]

What i don't understand is if i plug in a different modem it works, if i switch back to the modem i want to use it doesn't work. Distro's (like debian, opensuse leap 42.3) that use older kernels like 4.9 it works, if it is a newer kernel 4.10 and up it doesn't work

That makes me believe the problem is with how 4.10 -4.13 kernels are doing something that prevents that particular driver from loading correctly.
In any event the only way around it that I see right now is to revert to the 4.4 kernel series. As from what I've been able to find in the chatter on line is that kernel 4.10 and above have r8169 installed and doesn't allow the module for r8168 to load or it conflicts with it. But someone more knowledgeable than I will have to explain the whys of that. So for now the only recourse I believe may be to use the 4.4 kernel.

[therealrobojock]

So for now the only recourse I believe may be to use the 4.4 kernel.

At the moment i am not using linux mint because of that problem, is there anyway i can do that without an internet connection on the machine after installation?

[kc1di]

Yes there is you can go here http://ubuntuhandbook.org/index.php/201 ... in-ubuntu/ and download the 4.4 kernel on another machine and install them with gdebi or dpkg. once installed boot into the 4.4 kernel and see if you can get wifi going if you can the update the 4.4 kernel to the latest version. good luck.

[therealrobojock]

No luck there either Yes i selected 4.4 kernel from the grup menu before boot, but still no luck

[kc1di]

ok now boot to 4.4 and you'll have to reinstall the r8168 module to build against the 4.4 kernel.

[mintmdrescher]

What does 'netstat -rn' say?
What does 'cat /etc/resolv.conf' say?

[therealrobojock]

Tried everything still doesn't work

The thing is the network card "works" i can access 192.168.1.1, i just cannot go onto the internet even if i run linux mint from live from usb. I think previous versions 17.x worked. Some distros have the same issue. Ubuntu 17.10 live usb works that how i access the forum.

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inxi -Nn
Network:   Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           driver: r8168
           IF: enp1s0 state: up speed: 100 Mbps duplex: full
           mac: 40:8d:5c:4d:fd:8a

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uname -r
4.4.0-040400-generic

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lspci | grep -iA3 net
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)

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netstat -rn
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         192.168.1.1     0.0.0.0         UG        0 0          0 enp1s0
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 enp1s0
192.168.1.0     0.0.0.0         255.255.255.0   U         0 0          0 enp1s0

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cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1