Re: No networking after resume from suspend

[Richmond <richmond@criptext.com>]

Dan Ritter <dsr@randomstring.org> writes:

> Richmond wrote: 
>> When I resume from suspend there is no networking. I cannot find a way
>> to restart it. I tried these various commands.
>> 
>> systemctl restart network
>> /etc/init.d/networking restart
>> systemctl reset-failed 
>> systemctl restart networking.service 
>> systemctl restart network-online.target 
>> systemctl restart network-manager.service 
>> systemctl start network-manager.service 
>> systemctl stop network-manager.service 
>> 
>> lshw says:
>> 
>>  description: Ethernet interface
>>  product: 88E8071 PCI-E Gigabit Ethernet Controller
>>  vendor: Marvell Technology Group Ltd.
>
> Let's try from the bottom up?
>
> ip link show
>   will show you the interfaces recognized by the kernel. If this
>   works, it might show you an eth0, an en0, or something like a 
>   enp22s0 device. Let's call it "SAM".

Thanks for your reply.

 enp2s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000
 
I omited the second line which contained what looks like a mac address.

>
>   If any part of SAM reads "down", do this:
>
> sudo ip link set up SAM

ip link set up enp2s0

No output here but the link is still down.



>
>   and make sure the cable is plugged in.

:)

>
> Now let's set an address.
>
> ip addr show SAM
>   that might show you an IPv4 address. If not, or if you don't
>   think it looks right for your network, you can set one by
>   hand:

No address here, it repeats that the link is down.

>
> sudo ip addr set 192.168.0.43/24 dev SAM
>
>   or you can ask DHCP for one:
>
> sudo dhclient SAM
>

This paused for a long time but didn't set an address.

So I will try to set one manually as above...

It didn't like 'set', so I used 'add'

The address it is supposed to be is 192.168.1.43, you came close to
guessing it!

ip addr add 192.168.1.43/24 dev enp2s0

This produced a message in the GUI saying a connection was established
to enp2s0 but the link is still down.

> Finally, try pinging your gateway router.
>
> Let us know how far you get with this, and exactly what the
> error messages are.
>

ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
>From 192.168.1.43 icmp_seq=1 Destination Host Unreachable
... etc

I tried this before the other commands too, and got this:

ping 192.168.1.1
connect: Network is unreachable