Hello Tony,   
      
   On Monday August 13 2018 08:55, you wrote to me:   
      
    MvV>> Two weeks ago my ISP dumped a firmware update on my router. There   
    MvV>> may or may not be a connection, but I now get ony 18/20 from   
    MvV>> http://ipv6-test.com/. The comment is that my router or firewall is   
    MvV>> filtering ICMPV6.   
      
    TL> I get the same result, even though I explicitly allow ICMP messages to   
    TL> my router.   
      
   Have you tried to determine if it is indeed the router and not the local   
   firewall on the system doing the test?   
      
      
   Cheers, Michiel   
      
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