Windows 7 - RealTek PCIe Network Card

24. October 2011 12:58

 

It looks like the standard driver that shipped with windows 7 for the Realtek PCIe network card is somewhat buggy. It seems to trigger disconnects under load from the switch. However when you look at the details of the connection from the switch end of the connection there will be little or no errors. Only the disconnects will be logged.

 

It seems to be happening with the driver version 7.00.xx.xx but seems to be corrected after updating to version 7.046. More instrcutions for the update at the bottom.

 

You can see this below ...

 

 

FastEthernet0 is up, line protocol is up
  Hardware is Fast Ethernet, address is 001e.1366.750d (bia 001e.1366.750d)
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 18/255, rxload 142/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 129
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 55719000 bits/sec, 4977 packets/sec
  5 minute output rate 7307000 bits/sec, 3592 packets/sec
     288342812 packets input, 1052441307 bytes, 0 no buffer
     Received 17829 broadcasts, 0 runts, 321 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     365975051 packets output, 3739658513 bytes, 0 underruns
     0 output errors, 0 collisions, 2 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out

 

However if the connection is placed under significant load in window 7 then the following will begine to occur ...

 

 

Oct 22 11:29:45: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
Oct 22 11:29:46: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
Oct 22 11:29:47: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
Oct 22 11:29:59: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
Oct 22 11:30:00: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
Oct 22 11:30:01: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
Oct 22 11:30:09: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
Oct 22 11:30:10: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
Oct 22 11:30:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
Oct 22 11:30:23: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
Oct 22 11:30:24: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
Oct 22 11:30:25: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
Oct 22 11:30:33: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
Oct 22 11:30:34: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
Oct 22 11:30:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
Oct 22 11:30:57: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
Oct 22 11:30:58: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
Oct 22 11:30:59: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
Oct 22 11:31:21: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
Oct 22 11:31:22: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
Oct 22 11:31:23: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
Oct 22 11:31:33: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
Oct 22 11:31:34: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
Oct 22 11:31:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up

 

 

Which probably isn't the best thing when attempting to use a network drive. In this case the connection would not be able to cope a medium sized file (300mb) to a server before the connection would reset. However the card would function correctly for web browsing or lighter load.

 

The driver is next to impossible to find on the internet but the following will work.

 

to get to the screen below right click on "Computer" that is located in the start button and select manage. Locate the Device manage and find the Realtek PCIe card.

 

 

If the version is lower than 7.46.610 then you should update. Windows will do this for you automatically once you click the update driver button.

 

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