[ubuntu] one host blocked after 48hours
 

[ubuntu] one host blocked after 48hours

 
Hi,

I have a strange issue with my home network. My raspberry zero can’t reach my home server after ~2 days of normal operation. When I reboot the server, it works again.

only the connection between these two is broken. Other clients with similar software reach the server. Normally this server is up like 50-100 days without issues. The zero can ping/reach all other ips in the network.

So my assumption is that something on the server is blocking the connection to the zero after some time. I have browsed through the syslog.. checked iptables…. AFAIK I don#t have any firewall running on the server (which would be the first thing to look for if it would be windows).

Any idea what I could look for?

Network layout:
fritzbox ethernet to server (ubuntu 14.04.5)
fritzbox wlan to zero (rasbian 10)

Thanks,

Best regards,

 

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