Dear all,
I find out of a sudden my Network manager cannot connect to the Internet. My OS is Centos 6.7, and the version of Network manager is Applet 0.8.1. When clinking the Network manager icon at the upper right conner at the Desktop of my compuer, I can see in the pop-up manu that there are two network cards (Intel 82573E Gigabit Ethernet Controller (Copper) and Intel 82573L Gigabit Ethernet Controller) but only one link (System eth1) available. Usually when clicking the "System eth1" the Internet connection would be established. However from this morning clicking the "System eth1" only gives connect failure information. I don't know whether this is caused by intalling a large software package (ambertool 16 ) which requires many updates in my system yesterday. But when I give "ifconfig" command in a gnome terminal, the output information seems to be correct:
[sunyp@localhost Desktop]$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:25:90:72:E2:86
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:16 Memory:faee0000-faf00000
eth1 Link encap:Ethernet HWaddr 00:25:90:72:E2:87
inet6 addr: fe80::225:90ff:fe72:e287/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:49 errors:0 dropped:0 overruns:0 frame:0
TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:16386 (16.0 KiB) TX bytes:3038 (2.9 KiB)
Interrupt:17 Memory:fafe0000-fb000000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:90 errors:0 dropped:0 overruns:0 frame:0
TX packets:90 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:6737 (6.5 KiB) TX bytes:6737 (6.5 KiB)
What I can do now? Could anyone help me with this problem?
Best regards.
Yeping Sun
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