新しいCiscoルーターを使用しているため、ラップトップを再開または起動した後、Webの閲覧に問題があります。デバッグを行ったところ、ネットワークに接続しているようですが、DNSがしばらくの間(たとえば、50秒以上)失敗しているようです。
以下のpingとnslookupの出力で私が何を意味するかを見ることができます。GoogleネームサーバーとインターネットプロバイダーのDNSサーバーでこれを試しましたが、どちらも同じ結果になりました。しばらくの間すべてが起動した後、すべてが正常に動作します。(つまり、インターネットは機能し、試行されたすべてのネームサーバーは非常に高速に応答します)。
誰かがこの問題を解決する方法についての手がかりを持っているなら、いいでしょう。
追加情報:windows7、ブロードバンド接続、wifi接続とケーブル接続の両方がこの問題を共有しています。
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Windows\system32>ping 8.8.8.8
Pinging 8.8.8.8 with 32 bytes of data:
Reply from 8.8.8.8: bytes=32 time=18ms TTL=54
Reply from 8.8.8.8: bytes=32 time=21ms TTL=54
Reply from 8.8.8.8: bytes=32 time=16ms TTL=54
Reply from 8.8.8.8: bytes=32 time=18ms TTL=54
Ping statistics for 8.8.8.8:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 16ms, Maximum = 21ms, Average = 18ms
C:\Windows\system32>nslookup
DNS request timed out.
timeout was 2 seconds.
Default Server: UnKnown
Address: 8.8.8.8
> www.google.com
Server: UnKnown
Address: 8.8.8.8
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to UnKnown timed-out
> www.google.com
Server: UnKnown
Address: 8.8.8.8
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to UnKnown timed-out
> www.google.com
Server: UnKnown
Address: 8.8.8.8
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to UnKnown timed-out
> www.google.com
Server: UnKnown
Address: 8.8.8.8
--------8<------after a while---------
C:\Windows\system32>ping 8.8.8.8
Pinging 8.8.8.8 with 32 bytes of data:
Reply from 8.8.8.8: bytes=32 time=18ms TTL=54
Reply from 8.8.8.8: bytes=32 time=21ms TTL=54
Reply from 8.8.8.8: bytes=32 time=16ms TTL=54
Reply from 8.8.8.8: bytes=32 time=18ms TTL=54
Ping statistics for 8.8.8.8:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 16ms, Maximum = 21ms, Average = 18ms
C:\Windows\system32>nslookup
DNS request timed out.
timeout was 2 seconds.
Default Server: [8.8.8.8]
Address: 8.8.8.8
> www.google.com
Server: [8.8.8.8]
Address: 8.8.8.8
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
Non-authoritative answer:
Name: www.l.google.com
Addresses: 173.194.66.99
173.194.66.106
173.194.66.147
173.194.66.103
173.194.66.104
173.194.66.105
Aliases: www.google.com