No Google - Head Scratcher??

DekHog

DekHog

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Derek
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OK, a friend said his PC wasn't working properly on the internet, so I took it from him and plugged it into the network in a friends shop. Everything works.... apart from google.co.uk or google.com. Can't access them through any browser and can't ping them either. Any other site is accessible and pingable. :suspect:

There are definitely no trojans, viruses, or any other nasties present on the system. Never seen this before and am open to ideas no matter how weird they may seem!

:thinking:
 
What IP address do they resolve to and can you try a traceroute and post it here?
 
mattyh said:
Probably not, but have you checked the hosts file to see if it's rerouted anywhere?
Click to expand...

No, but will have a look tomorrow.... worth a look. Thanks.

morsing said:
What IP address do they resolve to and can you try a traceroute and post it here?
Click to expand...

They don't resolve to any IP address that I can see because I can't ping them.... will try a traceroute tomorrow when I go back. Ta.
 
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DekHog said:
They don't resolve to any IP address that I can see because I can't ping them.... will try a traceroute tomorrow when I go back. Ta.
Click to expand...

They can still resolve to an address even if you can't ping them.

What's the error when you try to ping them?
 
I think it was host unreachable, or request timed out, can't remember which now... :thinking:

Typing google into a browser just results in a white screen and http:/// (yes, three forward slashes) appearing eventually...
 
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Sounds to me like they do resolve but can't route there. How do you list the routing table on, I assume, Windows?

ipconfig /route ?
 
Will try all the options mentioned tomorrow and let you know.... stupid me didn't even think of flushing the DNS cache.... :bang:
 
The DNS cache is not preserved across a reboot so if the machine was switched off between you collecting it and plugging it into the shop network then the cache is already gone. I'd suggest you look at the host file first, as suggested above, for a rogue entry first - if there is one, then you need to flush the cache after removing it.
 
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Ok, nothing untoward in the hosts file, so can rule that out. Tried all the steps above and no joy. Some info below. The trace goes awry at hop 9, and the ping is pinging the wrong IP address for Google. :thinking:

This from another PC on the same network:

TRACERT

1 <1 ms <1 ms <1 ms 192.168.0.1
2 30 ms 29 ms 28 ms 217.47.187.122
3 29 ms 29 ms 28 ms 217.47.187.161
4 38 ms 41 ms 40 ms 213.1.69.154
5 37 ms 37 ms 38 ms 213.120.157.22
6 39 ms 37 ms 37 ms 213.120.157.178
7 48 ms 37 ms 37 ms 109.159.250.90
8 47 ms 47 ms 48 ms core2-te0-13-0-0.ilford.ukcore.bt.net [109.159.250.11]
9 45 ms 44 ms 45 ms 109.159.254.62
10 44 ms 44 ms 44 ms 195.99.126.58
11 47 ms 47 ms 45 ms 209.85.255.175
12 47 ms 45 ms 48 ms 209.85.251.202
13 46 ms 45 ms 45 ms 74.125.230.148

Trace complete.

Google.com

NSLOOKUP

C:\Documents and Settings\D>nslookup google.com
*** Can't find server name for address 192.168.0.1: Non-existent domain
*** Default servers are not available
Server: UnKnown
Address: 192.168.0.1

Non-authoritative answer:
Name: google.com
Addresses: 74.125.230.114, 74.125.230.116, 74.125.230.112, 74.125.230.115
74.125.230.113

PING

Pinging google.com [74.125.230.147] with 32 bytes of data:

Reply from 74.125.230.147: bytes=32 time=43ms TTL=52
Reply from 74.125.230.147: bytes=32 time=43ms TTL=52
Reply from 74.125.230.147: bytes=32 time=44ms TTL=52
Reply from 74.125.230.147: bytes=32 time=42ms TTL=52

Ping statistics for 74.125.230.147:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 42ms, Maximum = 44ms, Average = 43ms

This from the problematic PC:

TRACERT

1 <1 ms <1 ms <1 ms 192.168.0.1
2 111 ms 65 ms 34 ms 217.47.187.122
3 * 29 ms 29 ms 217.47.187.161
4 47 ms 55 ms 45 ms 213.1.69.154
5 177 ms 123 ms 185 ms 213.120.157.22
6 142 ms 119 ms 98 ms 213.120.157.178
7 39 ms 106 ms 41 ms acc1-10GigE-9-2-0.mr.21cn-ipp.bt.net [109.159.250.100]
8 43 ms 43 ms 44 ms core1-te0-12-0-4.ealing.ukcore.bt.net [109.159.250.5]
9 45 ms 80 ms 45 ms core3te-0-3-0-0.telehouse.ukcore.bt.net [62.172.102.1]
10 44 ms 66 ms 73 ms 10gigabitethernet1-1.core1.lon1.he.net [195.66.224.21]
11 144 ms 142 ms 148 ms 10gigabitethernet4-4.core1.nyc4.he.net [72.52.92.241]
12 206 ms 176 ms 241 ms 10gigabitethernet5-3.core1.lax1.he.net [72.52.92.226]
13 251 ms 239 ms 276 ms 10gigabitethernet1-3.core1.lax2.he.net [72.52.92.122]
14 * * * Request timed out.
15 * * * Request timed out.
16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
20 * * * Request timed out.
21 * * * Request timed out.
22 * * * Request timed out.
23 * * * Request timed out.
24 * * * Request timed out.
25 * * * Request timed out.
26 * * * Request timed out.
27 * * * Request timed out.
28 * * * Request timed out.
29 * * * Request timed out.
30 * * * Request timed out.

Trace complete.

Google.com


NSLOOKUP

C:\Documents and Settings\Marble Slab>nslookup google.com
*** Can't find server name for address 192.168.0.1: Non-existent domain
*** Default servers are not available
Server: UnKnown
Address: 192.168.0.1

Non-authoritative answer:
Name: google.com
Addresses: 74.125.230.145, 74.125.230.146, 74.125.230.144, 74.125.230.148
74.125.230.147

PING

Pinging google.com [204.152.194.252] with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 204.152.194.252:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
 
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Which DNS server is it using (They both seem to try 192.168.0.1) and where did it come from? Is this normally just hooked up to an ISP ADSL line? Modem or router?
 
The 192.168.0.1 is the router.... that'll supply both DHCP and DNS to all the PC's on the network. No problem with any of the other PC's, plus it's the same at his own place? Looking like a possible reinstall (XP), but am trying to avoid it as all his business stuff etc is on it, and it'll be a bit of a nightmare - EPOS system and everything... :runaway:
 
neil_g said:
Weird that an nslookup gives the correct address and ping does a completely different one.
Click to expand...

Yeah, I thought that myself.... really weird... :eek:

Will give the opendns a go.... :thumbs:
 
Is there anything in the Hosts file? Try renaming it and creating a completely blank one. FWIW, the incorrect IP address seems to have a bit of a history in these matters. Try googling it ;)

Neil - NSLOOKUP will directly query the designated DNS server - ping will check the Hosts file first before going to the DNS server which would explain what you are seeing.
 
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DekHog said:
The 192.168.0.1 is the router.... that'll supply both DHCP and DNS to all the PC's on the network. No problem with any of the other PC's, plus it's the same at his own place? Looking like a possible reinstall (XP), but am trying to avoid it as all his business stuff etc is on it, and it'll be a bit of a nightmare - EPOS system and everything... :runaway:
Click to expand...

If the only problem is not getting Google, why would you want to reinstall XP?

It sounds more like a virus to me, how positive are you that it is virus-free?
 
Absolutely 100% sure it's virus free; no doubt about it. Google isn't working, but the other bigger problem is that it's somehow affecting the EPOS system which works online. If I can get the google thing fixed it'll probably fix the EPOS.... hopefully.

The only line in hosts is the localhost 127.0.0.1 - definitely nothing else in there, although will try creating a new one on Monday.

Tried changing the DNS server, but no luck there. Last throw of the dice with a new hosts file then he'll have to bite the bullet and reinstall.

He did just mention today that he had the some virus/trojan on it, so removed it and deleted some files....but doesn't know what files! :cuckoo:

The faulty ping is going to a top level domain for quadranet.com... :suspect:
 
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Best of luck with it Derek - I hope you can avoid the reinstall. When you try creating the new HOSTS file, if you get a message that the file already exists, check that the options to hide known file extensions and the ones for hiding system files etc are not enabled.
 
noahdelias said:
this is far fetched but check if Google has been blocked or if it is in the list of blocked sites in the computer.
Click to expand...

Na, have tried three browsers and all firewall/AV disabled.... a reinstall on the cards now as have ran out of ideas... :'(
 
What does ipconfig /all give?
 
DekHog said:
Na, have tried three browsers and all firewall/AV disabled.... a reinstall on the cards now as have ran out of ideas... :'(
Click to expand...

Is it a modern motherboard with something like Asus Express Gate on it, or could you boot to Ubuntu on a USB stick to test access from there?
 
Too late, guys, the dirty deed is done; A backup of data and a 10 minute reinstall from an Acronis image and data copied back over - the ubuntu thing works ok (tried it last week) as it was a windows problem (one of the weirdest ones I've ever seen). :shrug:

Thanks to all who contributed - the reinstall wasn't too bad as his business email accounts are all IMAP, and the ePOS was just a case of copying the saved original folder back over and reinstalling the software, which then picked up the database.
 
Glad it's sorted, computers are strange things at times!
 
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