Hello David! I need your help,

I am having some connection issues, I reported back to my ISP, but they told me that they don't have any at their end. I checked the log and I encountered this message repeatedly:

daemon.err miniupnpd[19006]: sendto(udp_notify=11, [::1]): Network is unreachable

for the same amount of time that the network has a problem. The light of the deco remains green but I lose internet. 

I have the main deco connected to a switch and all the other decos are connected via ethernet. 

Please can you send to figure out what's the problem?

Thanks in ad