NIC works fine with Gentoo Live CD, not so good without.

[b1f30]

Ok gang, this one absolutely boggles me.

My system:

AMD64 w/1.5G RAM, 200G HD, Audigy2, Realtek NIC, nVidia 6800GS.

So, here's my NIC as it appears in lspci (both with the Live CD, and my current install):

02:03.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)

And the driver:

8139too 28992 0

Now then... as of 2 days ago, I've been noticing that my ethernet has been acting really whacky, with random ping times and flaky web surfing. Example ping:

jmg ~ # ping yahoo.com -c 10
PING yahoo.com (66.94.234.13) 56(84) bytes of data.
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=1 ttl=47 time=627 ms
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=2 ttl=48 time=696 ms
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=3 ttl=47 time=85.5 ms
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=4 ttl=48 time=728 ms
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=5 ttl=48 time=96.4 ms
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=6 ttl=47 time=764 ms
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=7 ttl=47 time=132 ms
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=8 ttl=48 time=800 ms
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=9 ttl=48 time=164 ms
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=10 ttl=48 time=833 ms

--- yahoo.com ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9027ms
rtt min/avg/max/mdev = 85.529/492.918/833.156/309.889 ms

Look at those times. Strange eh? Even more strange, I get a nice even 30-40ms ping when booting with the AMD64 Gentoo CD, so I've ruled out that my NIC card could be broken. I've also checked my iptables to make sure nothing's being blocked/dropped, and that looks fine.

Here's ifconfig:

jmg ~ # ifconfig
eth0 Link encap:Ethernet HWaddr 00:13:D4:63:AB:45
inet addr:192.168.100.69 Bcast:192.168.100.255 Mask:255.255.255.0
inet6 addr: fe80::213:d4ff:fe63:ab45/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1717 errors:2 dropped:4 overruns:1 frame:0
TX packets:1389 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1221100 (1.1 Mb) TX bytes:224935 (219.6 Kb)
Interrupt:10 Base address:0x2000

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:16436 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:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

Look at eth0. Errors? Drops? Overruns? Why? What could be wrong with this NIC all of the sudden? Again, I have 0 problems when booting the same exact setup with the Live CD.

After doing some simple troubleshooting, I'll admit, I'm stumped. Any idea why my NIC works great with the Live CD and not with my currently running system?
_________________
H T T P : / / W W W . B I N A R Y F R E E D O M . I N F O /

[Telemin]

Are you sure you're using the same driver? Do an lsmod on the livecd if you're not sure, also try using the same kernel version as on the livecd "uname -a" to find it.
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[b1f30]