DNS Problems

[ajax]

Got a similar problem just now. Router says "connected" but can't browse anymore. Couldn't browse Cell C's site. But using a different connection I did a nslookup for cell C and Telkom's site. Then using the Cell C connectin again I could ping both sites using the IP addresses. I then tried an international site's IP address and even that I could ping! So then I typed in the IP address of the international site into my browser and voila, I could browse! So the nslookups are failing at random it seems!

Should I try a different DNS server perhaps??

 

[ajax]

Would there be a benefit in using Opendns given my previous post?

 

[ginggs]

Would there be a benefit in using Opendns given my previous post?

You can try OpenDNS (208.67.222.222 and 208.67.220.220) or Google Public DNS (8.8.8.8 and 8.8.4.4) and see if it helps.

 

[RichardG]

Someone else was having the exact same problem as you he was unable to visit mybroadband and a variety of other websites, now he is using a proxy to vist mybroadband and others sites...

 

[ajax]

Could not browse to www.cellc.co.za but could browse there using their IP address. (EDIT: And it was a new page, something that was under construction, so it wasn't cached)
ping 41.72.143.60

Pinging 41.72.143.60 with 32 bytes of data:
Reply from 41.72.143.60: bytes=32 time=104ms TTL=52
Reply from 41.72.143.60: bytes=32 time=85ms TTL=52
Reply from 41.72.143.60: bytes=32 time=87ms TTL=52
Reply from 41.72.143.60: bytes=32 time=88ms TTL=52

C:\Users\Me>tracert 41.72.143.60
Tracing route to 41.72.143.60 over a maximum of 30 hops

1 <1 ms <1 ms <1 ms 192.168.1.6
2 * * * Request timed out.
3 75 ms 69 ms 69 ms 41.157.83.14
4 149 ms 99 ms 359 ms 10.0.238.50
5 107 ms 149 ms 99 ms 41.157.83.14
6 96 ms 149 ms 209 ms 41.157.72.3
7 100 ms 349 ms 199 ms 41.157.64.3
8 101 ms 149 ms 99 ms 41.181.47.223
9 95 ms 109 ms 99 ms 196.44.0.155
10 96 ms 149 ms 99 ms 196.44.31.26
11 90 ms 149 ms 209 ms 196.44.31.97
12 90 ms 359 ms 79 ms 196.30.1.21
13 96 ms 169 ms 209 ms 196.30.156.136
14 94 ms 109 ms 159 ms 196.30.213.108
15 95 ms 109 ms 99 ms 41.72.136.23
16 96 ms 99 ms 99 ms 41.72.143.60

So why is the 2nd hop timing out?

 

[ginggs]

So why is the 2nd hop timing out?

I think that just means that device is set to not respond to ICMP packets.
Try tcptraceroute instead of traceroute.