[SOLVED] Everything looks fine after upgrade, but nothing connects

KenJackson · 10-25-2015, 01:17 PM

I upgraded Linux. All went well, but I have no internet connectivity. That is, I can't ping anything. But AFAICS everything looks just fine. I can ping my own address, but not the router or anything else.

Can you see anything wrong here? Or can you tell me what else to look at?

Code:

$ netstat -nr
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 em1
192.168.1.0     0.0.0.0         255.255.255.0   U         0 0          0 em1

$ ip route
default via 192.168.1.1 dev em1  proto static  metric 1024 
192.168.1.0/24 dev em1  proto kernel  scope link  src 192.168.1.20 

$ ifconfig
em1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.20  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::21c:c0ff:fe94:a460  prefixlen 64  scopeid 0x20<link>
        ether 00:1c:c0:94:a4:60  txqueuelen 1000  (Ethernet)
        RX packets 22  bytes 5434 (5.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4256  bytes 274386 (267.9 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 20  memory 0xd0300000-d0320000  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 4600  bytes 424109 (414.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4600  bytes 424109 (414.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Emerson · 10-25-2015, 01:52 PM

ethtool em1 ?

KenJackson · 10-25-2015, 02:14 PM

This is most bizarre. It's been about 20 hours since the upgrade and nothing has worked.

But now suddenly, after sitting idle for a couple hours, everything works. I literally didn't do anything. I hate not knowing what's going on, but I'll take it for now.

I haven't used ethtool before. Thank you for alerting me to it. I'll try it if it fails again.