Did you check for DNS / IPV4 * IPV6 issues? Does name resolution work at all externally? Does it try to connect to IPV6 or IPV4? Is there any service on IPV6 running? E.g. Fritzbox?
Did you check for DNS / IPV4 * IPV6 issues? Does name resolution work at all externally? Does it try to connect to IPV6 or IPV4? Is there any service on IPV6 running? E.g. Fritzbox?