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Raspberry Pi Forum Raspberry Pi loses ethernet
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Forum Thread Details
  • Replies 28 replies
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  • raspberry_pi
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Raspberry Pi loses ethernet

Former Member
Former Member over 12 years ago

Hello there.

After several attempts to search this forum and not having found a solution, I decided to create a new discussion.

 

My Raspberry is a headless setup with a disk (externally powered) that I use as a downloader (transmission) and a file server (samba).

Sometimes it works for days in a row, sometimes it gets stuck and does not even acquire an IP address.

 

When it does not have an IP address I cannot determine what is wrong.

I have it plugged in to my router, the lights on the board itself light up and the light of the router that says it is connected also lights up.

The router does not recognise the Pi (it is not shown at the DHCP client list) and the Pi cannot ping the router.

Also, the Pi sees if the cable is removed. (the lights turn off and dmesg says eth0 is unplugged).

 

/etc/network/interfaces has dhcp enabled (although when I try to convert it to static and reboot the Pi says it has an IP address but cannot even ping the router and the router does not find it)

/etc/resolv.conf also has my router IP

 

I am at a deadend. If anyone could help me I would really appreciate it.

 

PS. I also used my multimeter at the TP1 TP2 connectors and got a result of 4.99V.

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  • Former Member
    Former Member over 12 years ago

    It probably aren't cold solder joints. Lead free solderings look different than ordinary ones.

    I have read about problems with the solderings of one of the xtals (X1 or X2) Due to that the oscillator sometimes stops.

    If you would have a keyboard and screen connected, you might be able to check the logfiles for abnormallities.

    I assume you already tried another ethernet cable to rule that out. Connecting to another ethernet port might be worth testing as well.

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  • Former Member
    Former Member over 12 years ago

    It probably aren't cold solder joints. Lead free solderings look different than ordinary ones.

    I have read about problems with the solderings of one of the xtals (X1 or X2) Due to that the oscillator sometimes stops.

    If you would have a keyboard and screen connected, you might be able to check the logfiles for abnormallities.

    I assume you already tried another ethernet cable to rule that out. Connecting to another ethernet port might be worth testing as well.

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