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Cannot ping host on same local network -host unreachable
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johnnyQuad
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Joined: 30 Jul 2019
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PostPosted: Fri Sep 20, 2019 12:57 am    Post subject: Cannot ping host on same local network -host unreachable Reply with quote

hi I need some help diagnosing a network problem. I have a gentoo host at home that I access using RDP, SSH, etc. it also is used as a media server using Minidlna. I'm not sure if I made a change or if something else has gone wrong, but the system keeps disappearing. for example , here's ping output:

From 192.168.1.31: bytes=32 time<1ms TTL=64
Reply from 192.168.1.31: bytes=32 time<1ms TTL=64
Reply from 192.168.1.31: bytes=32 time<1ms TTL=64
Reply from 192.168.1.31: bytes=32 time<1ms TTL=64
Reply from 192.168.1.31: bytes=32 time<1ms TTL=64
Reply from 192.168.1.31: bytes=32 time<1ms TTL=64
Reply from 192.168.1.31: bytes=32 time<1ms TTL=64
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.1.8: Destination host unreachable.
Reply from 192.168.1.8: Destination host unreachable.
Reply from 192.168.1.8: Destination host unreachable.
Reply from 192.168.1.8: Destination host unreachable.
Request timed out.
Request timed out.
Request timed out.

both the .8 and .31 hosts have a wired connection to same network --and the gentoo host (.31) is up despite being unavailable to other hosts on the same network , e.g. .8 , i tried switching .8 or .31 (or both) to a wireless if --no luck.

not sure how to troubleshoot thoughts?
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mike155
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Joined: 17 Sep 2010
Posts: 1651
Location: Frankfurt, Germany

PostPosted: Fri Sep 20, 2019 10:14 am    Post subject: Reply with quote

Please show us the output of the statements below on BOTH machines ( .8 and .31 ):
Code:
uname -a
ifconfig -a
route -n
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dmpogo
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Joined: 02 Sep 2004
Posts: 2539
Location: Canada

PostPosted: Fri Sep 20, 2019 11:01 am    Post subject: Reply with quote

Can you ping anything ?
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krinn
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Joined: 02 May 2003
Posts: 7193

PostPosted: Fri Sep 20, 2019 4:18 pm    Post subject: Reply with quote

Try to output EXACTLY what is on screen from what mike155 has ask.
Your ping output is more confusing than helping
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 43979
Location: 56N 3W

PostPosted: Fri Sep 20, 2019 7:03 pm    Post subject: Reply with quote

johnnyQuad,

Wild guess ... one of those IP addresses, perhaps both, are allocated to several hosts at the same time.
That's a very bad thing.
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