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Old 2020-05-31, 20:03   #12
Nick
 
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Dec 2012
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It would be interesting to know what the "going nuts" entails.
Do your switches have statistics recording malformed frames, for example?
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Old 2020-05-31, 20:27   #13
Prime95
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Aug 2002
Yeehaw, FL

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Quote:
Originally Posted by Nick View Post
It would be interesting to know what the "going nuts" entails.
Do your switches have statistics recording malformed frames, for example?
I doubt it. These are cheap netgear / linksys switches.
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Old 2020-05-31, 22:34   #14
storm5510
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Quote:
Originally Posted by Prime95 View Post
My latest desperate attempt is a 50 ft' ethernet cable connected to the router connected to the cable modem -- bypassing as much local networking gear as possible. I don't have much hope this will make a difference.
At first, I thought the setup, in bold, was backwards until I considered the 50 ft. cable. Did you try taking the router out of the loop? Doing so would reduce your connections. It would also eliminate, or confirm, one potential source...
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Old 2020-06-01, 22:05   #15
PhilF
 
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Quote:
Originally Posted by Prime95 View Post
How a GPU blip would cause a NIC problem that takes down the entire local network is a mystery to me.
Problems like this can be tricky. I have seen similar things happen if the IP address of a machine conflicts with something else on the network.

If you are using DHCP to get the IP address, try manually assigning a static IP address that you know is safe to the machine via the /etc/network/interfaces file. Mine looks something like this (the original dhcp line is commented out):

Code:
# The primary network interface
allow-hotplug enp2s0
#iface enp2s0 inet dhcp
iface enp2s0 inet static
	address 192.168.1.33
	netmask 255.255.255.0
	gateway 192.168.1.1

Last fiddled with by PhilF on 2020-06-01 at 22:07
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Old 2020-06-02, 06:39   #16
S485122
 
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Sep 2006
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If your DHCP server (on the router I suppose) permits it, try assigning reservations. Check that none of your nicks have a DHCP server running : having concurrent DHCP servers gives interesting results.

Totally unrelated, should be in the unhappy me thread, but I got shingles, of course on the eve of a long week-end, confused it with a kidney stone since the pain is of the same nature and at the same place. I think I understand now what you endured, in 2013 if memory serves. At the moment I feel like a chemical recycling plant with all the pain medication I was prescribed and for once ingested as well.

Jacob.
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