Internet stops in the whole network due to raspberry

[YuriBasescu]

Good afternoon Gentlemen

Something strange happens with my Raspberry Pi 3 ... I connect with the built in WiFi and works correctly in Raspbian until it suddenly stops working (often where I load webpages with more data, e.g. newspapers with pictures, facebook ...). The thing is that the wifi doesnt disconnect, but there is no internet anymore. When this happens, all my other network devices also loses the internet connection (but keeping connected to the Wifi).

Then, If i disconnect the raspberry, all the other devices start working properly again..

I have no idea what the issue could be, so I would appreciate any help on this

PS: tcpdump shows this when the connection stops and i reset the raspberry wifi

13:35:39.666517 ARP, Request who-has 192.168.1.1 tell 192.168.1.189, length 28
13:35:40.666825 ARP, Request who-has 192.168.1.1 tell 192.168.1.189, length 28
13:35:41.666510 ARP, Request who-has 192.168.1.1 tell 192.168.1.189, length 28
13:35:42.666537 ARP, Request who-has 192.168.1.1 tell 192.168.1.189, length 28
13:35:43.667116 ARP, Request who-has 192.168.1.1 tell 192.168.1.189, length 28
13:35:44.666522 ARP, Request who-has 192.168.1.1 tell 192.168.1.189, length 28
13:35:45.666533 ARP, Request who-has 192.168.1.1 tell 192.168.1.189, length 28
13:35:46.667165 ARP, Request who-has 192.168.1.1 tell 192.168.1.189, length 28

[james-at-lo-tech]

So it looks like the RPi is flooding the LAN for some reason.

You should be able to control it with broadcast rate limits, if you have a managed switch, but why this is happening is the important thing here.

[d_older]

Not really a flood, 1 every second - that seems pretty rate limited already.

is .189 the pi and is that a static address or dhcp ? Network address conflicts can cause weird effects

Do both wireless and wired devices loose the internet?

Are you running tcpdump on the pi or another machine, if another I would run it while you attempt to break the system again with the pi, once wired to the router and once wireless if possible and see if you determine the sequence of events.

Dave