internet and DNS etc Gurus req'd

djbolf

djbolf

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Graham
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I really am puzzled by my pc.

I was away working this week again and when I came home my pc's wireless connection had died.

I powercycled my router and reconnected , everything ok.

However although i can access 99% of the web , my two most common used site's won't load. The browser (both opera and IE7) just does nothing. Even MSN can't see the msn server.... :S :thinking:

Here is a bit of basic prodding I did:

Code: 
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\User>trackert www.hotmail.com
'trackert' is not recognized as an internal or external command,
operable program or batch file.

C:\Documents and Settings\User>tracert www.hotmail.com

Tracing route to www.hotmail.aate.nsatc.net [212.162.1.124]
over a maximum of 30 hops:

  1  Destination host unreachable.

Trace complete.

C:\Documents and Settings\User>tracert www.driftworks.com

Tracing route to www.driftworks.com [85.232.35.127]
over a maximum of 30 hops:

  1     8 ms    16 ms     3 ms  192.168.0.10
  2    66 ms    46 ms    90 ms  lo0-plusnet.pte-ag1.plus.net [195.166.128.64]
  3    74 ms   113 ms    47 ms  ge0-0-0-403.pte-gw2.plus.net [84.92.4.2]
  4     *      273 ms   224 ms  te2-4.pte-gw1.plus.net [212.159.1.101]
  5   128 ms   295 ms    76 ms  ge0-1.lonap.lon.rapidswitch.com [193.203.5.86]
  6     *        *        *     Request timed out.
  7     *        *        *     Request timed out.
  8   285 ms   190 ms   469 ms  217.77.191.6
  9   118 ms    72 ms    66 ms  85.232.47.85
 10   192 ms    76 ms    40 ms  www.driftworks.com [85.232.35.127]

Trace complete.

C:\Documents and Settings\User>ping www.hotmail.com

Pinging www.hotmail.aate.nsatc.net [212.162.1.124] with 32 bytes of data:

Destination host unreachable.
Destination host unreachable.
Destination host unreachable.
Destination host unreachable.

Ping statistics for 212.162.1.124:
    Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Documents and Settings\User>ping www.driftworks.com

Pinging www.driftworks.com [85.232.35.127] with 32 bytes of data:

Reply from 85.232.35.127: bytes=32 time=255ms TTL=56
Reply from 85.232.35.127: bytes=32 time=93ms TTL=56
Reply from 85.232.35.127: bytes=32 time=520ms TTL=56
Reply from 85.232.35.127: bytes=32 time=403ms TTL=56

Ping statistics for 85.232.35.127:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 93ms, Maximum = 520ms, Average = 317ms

C:\Documents and Settings\User>ping www.mozilla.com

Pinging www-mozilla-com.glb.mozilla.com [63.245.213.11] with 32 bytes of data:

Reply from 63.245.213.11: bytes=32 time=191ms TTL=247
Reply from 63.245.213.11: bytes=32 time=171ms TTL=247
Reply from 63.245.213.11: bytes=32 time=77ms TTL=247
Reply from 63.245.213.11: bytes=32 time=342ms TTL=247

Ping statistics for 63.245.213.11:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 77ms, Maximum = 342ms, Average = 195ms

C:\Documents and Settings\User>ping www.bbc.co.uk

Pinging www.bbc.net.uk [212.58.253.75] with 32 bytes of data:

Destination host unreachable.
Destination host unreachable.
Destination host unreachable.
Destination host unreachable.

Ping statistics for 212.58.253.75:
    Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Documents and Settings\User>tracert www.bbc.co.uk

Tracing route to www.bbc.net.uk [212.58.253.75]
over a maximum of 30 hops:

  1  Destination host unreachable.

Trace complete.

C:\Documents and Settings\User>

www.hotmail.com and www.driftworks.com are the offending sites I cannot access.

Now I can access the bbc website despite what it said on the ping and trace.

I know the websites are online as I can view them through my mobile....

I use openDNS , i've power cycled my pc and my router , cleared all cookies and temp files etc.

Any ideas? :bonk::bonk::bonk:
 
If you're using a DHCP server (which you probably are) all of the settings are controlled by your router, so you need to check what is set up there - if you've power cycled it there may be some strange default settings.

My son had a similar problem last week, he ended up doing a "roll back" to a couple of days previously and everything was fine.

HTH

Steve
 
Thanks I thought as much.

b****r , the router belongs to my housemate who is away at the moment , I won't be able to access the router pages. :(
 
Not using Zoine Alarm by any chance?
 
Does an IPCONFIG /ALL show your DNS servers to be the same address as the router?
If not your DNS may have been 'hijacked' by some spyware or other naughty application.
 
onefivenine said:
Does an IPCONFIG /ALL show your DNS servers to be the same address as the router?
If not your DNS may have been 'hijacked' by some spyware or other naughty application.
Click to expand...
Code: 
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\User>ipconfig /all

Windows IP Configuration

        Host Name . . . . . . . . . . . . : Bolf
        Primary Dns Suffix  . . . . . . . :
        Node Type . . . . . . . . . . . . : Unknown
        IP Routing Enabled. . . . . . . . : No
        WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Bluetooth Network Connection:

        Media State . . . . . . . . . . . : Media disconnected
        Description . . . . . . . . . . . : Bluetooth Device (Personal Area Netw
ork) #11
        Physical Address. . . . . . . . . : 00-09-DD-60-05-2B

Ethernet adapter internet:

        Connection-specific DNS Suffix  . :
        Description . . . . . . . . . . . : Gigaset USB Stick 108
        Physical Address. . . . . . . . . : 00-01-E3-5B-FF-58
        Dhcp Enabled. . . . . . . . . . . : No
        IP Address. . . . . . . . . . . . : 192.168.0.2
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . : 192.168.0.10
        DNS Servers . . . . . . . . . . . : 208.67.220.220
                                            208.67.222.222

C:\Documents and Settings\User>

Seems right , doesn't it?

Don't use zone alarm
 
Don't claim to be a guru but a lookup on those dns server numbers goes to somewhere in america. As a moderator here i can see the IP you are posting from and your isp's dns servers (as listed on the support page) are completely different addresses.

from dnsstuff.com

IP address: 208.67.220.220
Reverse DNS: resolver2.opendns.com.
Reverse DNS authenticity: [Verified]
ASN: 0
ASN Name: IANA-RSVD-0
IP range connectivity: 0
Registrar (per ASN): Unknown
Country (per IP registrar): US [United States]
Country Currency: USD [United States Dollars]
Country IP Range: 208.67.192.0 to 208.67.223.255
Country fraud profile: Normal
City (per outside source): San Francisco, California
Country (per outside source): US [United States]
Private (internal) IP? No
IP address registrar: whois.arin.net
Known Proxy? No
Link for WHOIS: 208.67.220.220
 
I use opendns ;reason being when its set to obtain DNS automatically the connection flakes out every 4 minutes or so.
 
djbolf said:
I use opendns ;reason being when its set to obtain DNS automatically the connection flakes out every 4 minutes or so.
Click to expand...

You need to check the firmware version on your router, this may well fix the 4 minute issue, and then use the router IP Address as the DNS entries. Failing that, set the router to be your DNS server, then get on to the router configuration, and find out what it's DNS servers are, then you can use them on your PC.
 
Yeah I use OpenDNS too. I dont think the issue here is your DNS servers, as you can't access the IP's directly.

I'm thinking router or ISP.
 
Just to let you all know I dont have a clue what the heck you are all talking about, but.....best of luck! :cuckoo:
 
As your DNS is being resolved it's clearly not that which is causing your problem. I would suspect that there is a peering issue between you (your ISP) and the sites you wish to visit.

Unfortunately, other that complaining to them, there's not a great deal you can do in such situations.

If you ever think you have DNS issues try using "nslookup" from a command prompt to check DNS from an alternative server.
 
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