No internet after fresh install of 6.0

[Joel61]

Hi All

So brand new to Proxmox. Now Ihave just installed version 6.0 (twice to make sure I wasnt going crazy).
I have no internet and I cant ping my gateway. This also means I cant access the web interface

Now this question has been asked a few times but I have not been able to get any fix to work for me.

My /etc/network/interfaces is

auto lo
iface lo inet loopback

iface enp14s0 inet manual

auto vmbr0
iface vmbr0 inet static
        address 192.168.1.81
        netmask 255.255.255.0
        gateway 192.168.1.1
        bridge_ports enp14s0
        bridge_stp off
        bridge_fd 0

When I originally set it up, I set my DNS to 8.8.8.8

When I try ping 192.168.1.1 I get "Destination Host Unreachable"

When I log into my router I can see the computer show up there, but I cant ping it from my main computer either, I just get the same "Destination Host Unreachable" message.

Does anyone know what might be going on here and how I could fix it?


(Here is a photo from the first install, I had it on another IP, hence the .79 instead of the .81 which I am currently on)

 

[t.lamprecht]

Hi,

Can you also post your

ip route
ip addr

output?

How's the laptop connected to your gateway?

 

[Joel61]

@t.lamprecht The laptop is connected by ethernet to the main switch (Same one that my main PC is on right now)
Here is the output

ip route
default via 192.168.1.1 dev vmbr0 onlink
192.168.1.0/24 dev bmbr0 proto kernel scope link src 192.168.1.81

and here is the output of the other:

Also here is my working Windows PC's network setting for refrence:

 

[t.lamprecht]

Hmm, looks all as it should.

Does the info comes from a DHCP server on the network or did you entered it manually?
Just to ensure the network details are correct, not that it should be "192.168.0.0/24" or the like (sorry, stupid questions, but as all seems well else we need to ensure the basics )

Do you see (ping) the server from the outside? If you have another Linux box, you could try and ARP ping with: arping 1c:75:08:7f:77:d4

 

[Joel61]

@t.lamprecht The info is all entered manually. It's definitely 192.168.1.1 as that's what I use in the Web browser to configure the router. Don't have another Linux box handy right now, but I tried to ping its ip from my windows box and it won't work. Ill see if I can get a VM booted up and try ARP ping it

 

[Joel61]

@t.lamprecht I was able to try ping it but it didnt work

 

[Joel61]

So just an update, I reinstalled on another laptop and it works fine! So I guess its a driver issue or something strange with this other laptop

 

[t.lamprecht]

I mean glad that not all is broken but strange nonetheless. Could you post the

lspci -knn

Or, if you cannot copy paste yet, the reduced info from the network only

lspci -knn | grep -A 3 net

to see what network card and which Kernel driver is in use.

 

[Joel61]

I would do this, but I had to the use same drive to re install on the other laptop. If I get time I'll reinstall it again on the old laptop and get you this information

 

[t.lamprecht]

Yeah, no worries, just out of interest as this sounds like quite a strange issue with some NIC (driver?)...