Co 10-15 minut moje połączenie internetowe nie działa w następujący sposób:
- Nie można załadować stron internetowych
- Nie można połączyć się z Dropbox
- Nie można połączyć się z IRC
- Skype nadal działa
- Slack nadal działa
- Nadal mogę połączyć się z moim routerem i modemem
Po wielu poszukiwaniach uważam, że jest to problem z DNS. Próbowałem używać zarówno serwerów DNS mojego ISP, jak i serwerów DNS Google, ale problem pozostaje.
Po odłączeniu od sieci Wi-Fi i ponownym połączeniu problem zniknął i wszystko działa przez kolejne 10-15 minut.
Oto wyniki z kilku ping
testów, gdy pojawia się problem:
# ping 8.8.8.8 (Google's DNS server, becomes unreachable)
64 bytes from 8.8.8.8: icmp_seq=11589 ttl=41 time=61.719 ms
64 bytes from 8.8.8.8: icmp_seq=11590 ttl=41 time=61.869 ms
64 bytes from 8.8.8.8: icmp_seq=11591 ttl=41 time=60.212 ms
64 bytes from 8.8.8.8: icmp_seq=11592 ttl=41 time=60.332 ms
64 bytes from 8.8.8.8: icmp_seq=11593 ttl=41 time=65.169 ms
64 bytes from 8.8.8.8: icmp_seq=11594 ttl=41 time=61.890 ms
64 bytes from 8.8.8.8: icmp_seq=11595 ttl=41 time=59.746 ms
64 bytes from 8.8.8.8: icmp_seq=11596 ttl=41 time=60.221 ms
Request timeout for icmp_seq 11602
Request timeout for icmp_seq 11603
Request timeout for icmp_seq 11604
Request timeout for icmp_seq 11605
Request timeout for icmp_seq 11606
Request timeout for icmp_seq 11607
Request timeout for icmp_seq 11608
Request timeout for icmp_seq 11609
# ping 203.144.206.49 (ISP's DNS server, automatically configured, becomes unreachable)
64 bytes from 203.144.206.49: icmp_seq=1418 ttl=249 time=27.160 ms
64 bytes from 203.144.206.49: icmp_seq=1419 ttl=249 time=23.846 ms
64 bytes from 203.144.206.49: icmp_seq=1420 ttl=249 time=25.674 ms
64 bytes from 203.144.206.49: icmp_seq=1421 ttl=249 time=25.712 ms
64 bytes from 203.144.206.49: icmp_seq=1422 ttl=249 time=25.169 ms
64 bytes from 203.144.206.49: icmp_seq=1423 ttl=249 time=24.310 ms
64 bytes from 203.144.206.49: icmp_seq=1424 ttl=249 time=26.983 ms
64 bytes from 203.144.206.49: icmp_seq=1425 ttl=249 time=26.477 ms
Request timeout for icmp_seq 1428
Request timeout for icmp_seq 1429
Request timeout for icmp_seq 1430
Request timeout for icmp_seq 1431
Request timeout for icmp_seq 1432
Request timeout for icmp_seq 1433
Request timeout for icmp_seq 1434
Request timeout for icmp_seq 1435
# ping 192.168.1.1 (modem, remains reachable)
64 bytes from 192.168.1.1: icmp_seq=1760 ttl=64 time=1.571 ms
64 bytes from 192.168.1.1: icmp_seq=1761 ttl=64 time=1.414 ms
64 bytes from 192.168.1.1: icmp_seq=1762 ttl=64 time=1.421 ms
64 bytes from 192.168.1.1: icmp_seq=1763 ttl=64 time=1.439 ms
64 bytes from 192.168.1.1: icmp_seq=1764 ttl=64 time=1.600 ms
64 bytes from 192.168.1.1: icmp_seq=1765 ttl=64 time=2.117 ms
64 bytes from 192.168.1.1: icmp_seq=1766 ttl=64 time=1.354 ms
64 bytes from 192.168.1.1: icmp_seq=1767 ttl=64 time=1.395 ms
64 bytes from 192.168.1.1: icmp_seq=1768 ttl=64 time=1.492 ms
64 bytes from 192.168.1.1: icmp_seq=1769 ttl=64 time=1.326 ms
64 bytes from 192.168.1.1: icmp_seq=1770 ttl=64 time=1.641 ms
64 bytes from 192.168.1.1: icmp_seq=1771 ttl=64 time=1.428 ms
64 bytes from 192.168.1.1: icmp_seq=1772 ttl=64 time=1.459 ms
64 bytes from 192.168.1.1: icmp_seq=1773 ttl=64 time=1.517 ms
64 bytes from 192.168.1.1: icmp_seq=1774 ttl=64 time=1.429 ms
64 bytes from 192.168.1.1: icmp_seq=1775 ttl=64 time=2.007 ms
A tutaj jest traceroute
zarówno, gdy połączenie działa, jak i gdy nie:
# traceroute 8.8.8.8 (connection is working)
traceroute to 8.8.8.8 (8.8.8.8), 64 hops max, 52 byte packets
1 192.168.1.1 (192.168.1.1) 1.314 ms 3.256 ms 1.089 ms
2 cm-134-196-10-1.revip18.asianet.co.th (134.196.10.1) 9.022 ms 9.922 ms 9.988 ms
3 10.92.249.49 (10.92.249.49) 23.733 ms 16.544 ms 17.930 ms
4 203-144-128-34.static.asianet.co.th (203.144.128.34) 23.399 ms 22.948 ms 23.950 ms
5 203-144-128-33.static.asianet.co.th (203.144.128.33) 23.067 ms
203-144-128-29.static.asianet.co.th (203.144.128.29) 25.810 ms
203-144-128-33.static.asianet.co.th (203.144.128.33) 23.437 ms
6 61-91-213-177.static.asianet.co.th (61.91.213.177) 25.623 ms 23.378 ms 24.319 ms
7 61-91-213-35.static.asianet.co.th (61.91.213.35) 26.058 ms 26.429 ms 31.222 ms
8 61-91-213-81.static.asianet.co.th (61.91.213.81) 25.335 ms 25.126 ms 23.935 ms
9 tig-net25-61.trueintergateway.com (122.144.25.61) 24.232 ms
tig-net25-105.trueintergateway.com (122.144.25.105) 27.276 ms
tig-net25-209.trueintergateway.com (122.144.25.209) 28.039 ms
10 72.14.195.115 (72.14.195.115) 49.303 ms 49.605 ms 50.321 ms
11 209.85.242.240 (209.85.242.240) 49.322 ms 50.768 ms 49.716 ms
12 209.85.242.242 (209.85.242.242) 58.872 ms 60.480 ms
209.85.242.232 (209.85.242.232) 67.498 ms
13 209.85.246.23 (209.85.246.23) 62.638 ms
209.85.248.25 (209.85.248.25) 60.055 ms 60.914 ms
14 * * *
15 google-public-dns-a.google.com (8.8.8.8) 61.586 ms 60.368 ms 61.882 ms
# traceroute 8.8.8.8 (connection is NOT working)
traceroute to 8.8.8.8 (8.8.8.8), 64 hops max, 52 byte packets
1 * * *
2 * * *
3 * * *
4 * * *
5 * * *
(it goes on like this until the connection kicks in again)
Wszelkie pomysły, jak rozwiązać ten problem?