Hi Sandy,
On 7/15/2015 I gathered 22 pairs of Windows Events (ID = 27 & 32) while the ethernet card was connected to LAN port 1.
On 7/16/2015 I gathered 12 pairs while connected to LAN port 2.
In both cases there were many pairs of "unplugged/plugged" messages displayed by the Local Area Connection in the Task bar's Notificaiton Area.
For your item #2: in your reply, I don't have another device (router) to connect the system(pc) to.
The onboard NIC, i.e. not the Intel Ethernet car, would periodically result in the same unplugged/plugged messages but only a few time a year.
With the Intel etheret, card it is happening has I write this.
For your item #1:
Summary: Today I ran those diagnostics. Everything looked normal ...
Control Panel, System, Hardware, Device Manager
right clicked on "Intel Gigabit CT Desktop Adapter" and selected Properties
Link Speed tab:
Speed and Duplex: 1.0 Gbps Full Duplex
clicked on Diagnostics
Connection tab: clicked on Run test
Connection test passed.
Test details
This connection obtained an IP address from a DHCP server.
Ping Gateway 192.168.1.1: Passed
Cable tab
for Test signal quality
No cable problems detected.
Test details
Polarity : Normal
for Test cable connections and frequency response
Cable Offline Test
Good quality cable detected.
Test details
Cable Quality
{ This test results in 27/32 event pair }
Hardware Tab
{ takes a 30-ish seconds }
Register Test : Passed
EEPROM Test : Passed
FIFO Test : Passed
Interrupt Test : Passed
Loopback Test(s) : Passed
{ This test results in 27/32 event pair }
Regarding the Events ...
Yesterday there were 22 pairs and today there were 12 (when I stopped looking).
Event: 27 { appears first }
Type: Warning
Category: e1qexpress
User: N/A
Computer: WINXP
Description:
Intel(R) Gigabit CT Desktop Adapter Network link is disconnected.
Data as bytes:
0000: 00 00 04 00 02 00 5e 00 ......^.
0008: 00 00 00 00 1b 00 04 a0 .......
0010: 00 00 00 00 00 00 00 00 ........
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........
0028: 1b 00 04 a0 ...
Data as words:
0000: 00040000 005e0002 00000000 a004001b
0010: 00000000 00000000 00000000 00000000
0020: 00000000 00000000 a004001b
Event: 32 { appears after event 27 }
Type: Information
Category: e1qexpress
User: N/A
Computer: WINXP
Description:
Intel(R) Gigabit CT Desktop Adapter Network link has been established at 1Gbps full duplex.
Data as bytes:
0000: 00 00 04 00 02 00 5e 00 ......^.
0008: 00 00 00 00 20 00 04 60 .... ..`
0010: 00 00 00 00 00 00 00 00 ........
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........
0028: 20 00 04 60 ..`
Data as words:
0000: 00040000 005e0002 00000000 60040020
0010: 00000000 00000000 00000000 00000000
0020: 00000000 00000000 60040020
Regards,
Bill