[caiu] Net-Claro Virtua não resolvendo IPv4

[Cesar Manara]

Estou com problema há algumas horas já que o tráfego IPv4 está morrendo no
primeiro hop:

Qualquer IPv4 acontece isso:

  1    <1 ms    <1 ms    <1 ms  192.168.0.1
  2  b18dd27a.virtua.com.br [177.141.210.122]  reports: Destination host
unreachable.

IPv6 está indo normal:
 1    <1 ms    <1 ms    <1 ms  2804:14c:110:9bef:d6b9:2fff:fe2b:6bcc
  2     *        *        *     Request timed out.
  3     8 ms     9 ms     8 ms  2804:14c:0:bf1::1
  4     9 ms     8 ms     8 ms  2804:14c:0:b51::1
  5     8 ms    33 ms    10 ms  2804:a8:2:b8::2a22
  6     *        *        *     Request timed out.
  7     *        *        *     Request timed out.
  8     *        *        *     Request timed out.
  9     *        *        *     Request timed out.
 10    10 ms    10 ms    25 ms  ae0.pr03.gru2.tfbnw.net
[2620:0:1cff:dead:beee::b06]
 11    11 ms     9 ms     9 ms  po131.asw02.gru2.tfbnw.net
[2620:0:1cff:dead:beef::3218]
 12    10 ms    10 ms    11 ms  po242.psw04.gru2.tfbnw.net
[2620:0:1cff:dead:beef::320b]
 13    10 ms    10 ms     9 ms  po4.msw1aj.01.gru2.tfbnw.net
[2a03:2880:f005:ffff::1af]
 14     9 ms    10 ms     9 ms  edge-star-mini6-shv-01-gru2.facebook.com
[2a03:2880:f105:83:face:b00c:0:25de]

Alguém com problema similar ou com alguma falha?