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unable to resolve web address and update avg

Community Veteran
Posts: 1,817
Thanks: 11
Registered: 30-07-2007

unable to resolve web address and update avg

Since the dns issue being resolved yesterday I have been unable to update avg antivirus and firewall. The location for the updates cannot apparently be resolved, the server name cannot be converted to the ip address.

http://www.grisoft.cz/softw/70/update/u7avi833u8148c.bin

I have tried both using the programs update and trying to access the aupadtes from the site directly but both places link to the unresolvable location.

Many thanks for any help

A
11 REPLIES
Plusnet Staff
Plusnet Staff
Posts: 12,169
Thanks: 18
Fixes: 1
Registered: 04-04-2007

unable to resolve web address and update avg

Hi,

The site resolves OK for me using both my own DNS server and one of the PlusNet caching DNS servers

C:\Documents and Settings\Administrator>nslookup www.grisoft.cz
Server: cactusjack
Address: 192.168.0.2

Non-authoritative answer:
Name: www.grisoft.cz
Address: 193.86.103.18


C:\Documents and Settings\Administrator>nslookup www.grisoft.cz 212.159.6.9
Server: ptn-cdns01.plus.net
Address: 212.159.6.9

Non-authoritative answer:
Name: www.grisoft.cz
Address: 193.86.103.18

what do you get with an nslookup?
Community Veteran
Posts: 1,817
Thanks: 11
Registered: 30-07-2007

unable to resolve web address and update avg

I just tried using the dns servers listed under my router as those I am currently connect via and these are the responses.

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

E:\Documents and Settings\Alan>nslookup www.grisoft.cz
Server: resolver0.metronet.co.uk
Address: 213.162.97.65

Non-authoritative answer:
Name: www.grisoft.cz
Address: 193.86.103.18


E:\Documents and Settings\Alan>nslookup www.grisoft.cz 213.162.97.65
Server: resolver0.metronet.co.uk
Address: 213.162.97.65

Non-authoritative answer:
Name: www.grisoft.cz
Address: 193.86.103.18


E:\Documents and Settings\Alan>nslookup www.grisoft.cz 213.162.97.66
Server: resolver1.metronet.co.uk
Address: 213.162.97.66

Non-authoritative answer:
Name: www.grisoft.cz
Address: 193.86.103.18


E:\Documents and Settings\Alan>nslookup www.grisoft.cz 212.159.6.9
Server: ptn-cdns01.plus.net
Address: 212.159.6.9

Non-authoritative answer:
Name: www.grisoft.cz
Address: 193.86.103.18


I can resolve to the www.grisoft.cz in my browser but nslookup i get non athorititive answer and I avg as mentioned says the server ip address cannot be resolved to the ip address.


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

E:\Documents and Settings\Alan>ping www.grisoft.cz

Pinging www.grisoft.cz [193.86.103.18] with 32 bytes of data:

Reply from 193.86.103.18: bytes=32 time=54ms TTL=57
Reply from 193.86.103.18: bytes=32 time=1650ms TTL=57
Reply from 193.86.103.18: bytes=32 time=56ms TTL=57
Reply from 193.86.103.18: bytes=32 time=54ms TTL=57

Ping statistics for 193.86.103.18:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 54ms, Maximum = 1650ms, Average = 453ms



Cheers

A
Plusnet Staff
Plusnet Staff
Posts: 12,169
Thanks: 18
Fixes: 1
Registered: 04-04-2007

unable to resolve web address and update avg

It sound like a problem with AVG to be honest, the nslookup works fine (it should say non-authoritative answer) and site's OK and you can load it in the browser. I'd suggest a reboot but otherwise contact AVG.
tssk
Grafter
Posts: 117
Registered: 31-07-2007

unable to resolve web address and update avg

Nah, I'd suggest using a better anti virus solution:
http://www.avast.com/eng/download-avast-home.html
Free, free registration, free updates and superior to AVG - imho.
N/A

unable to resolve web address and update avg

Wasn't there a big hoo-ha ages ago where the address in the actual AVG itself was wrong and had to be updated manually?

I would google it but im at work and meant to be working hard Cheesy
N/A

unable to resolve web address and update avg

Well if there was, it didn't effect me, and I've been using AVG for at least three years. Perhaps it was only the free version you cheap-skates Cheesy
pjemmanuel
Grafter
Posts: 349
Registered: 05-04-2007

unable to resolve web address and update avg

Not having any problem with the Free version (yes, I'm a cheapskate :lol: ). Just downloaded and installed ver 7.5 Free, and updated the database, within the last 10 minutes, so I don't think it is an AVG problem.

@Mourby
I don't recall any issue in the past of the AVG address being wrong, but in version 6, the default address that AVG used was their busiest server. In that version you could edit the .ini file to add other servers which could then be selected in the AVG updater.
However, this feature was removed in version 7 although you could change the server that was actually used by making an entry in your 'hosts' file to direct the updater to a server of your choice.
Community Veteran
Posts: 1,817
Thanks: 11
Registered: 30-07-2007

unable to resolve web address and update avg

hey! less of the cheapskate.

I paid for my avg! I used the free version for years along with free zonealarm.


cheers for the feedback I'll check how to change the update path in google. I've looked already but the option wasn't that obvious must be hidden.

thanks to everyone for their help.

A
pjemmanuel
Grafter
Posts: 349
Registered: 05-04-2007

unable to resolve web address and update avg

If you have the paid for version, you have the function in AVG control panel to change or add more update servers.
Double click the AVG icon in the task tray, then select Update Manager in the AVG control panel, then click settings. Click the URL tab and you can change/add servers there.

Just as a note though, this is only available in the Paid for version, not the free version. Also you will need to find out the alternative update server addresses which can prove to be elusive. However, as a user of a fully paid up version, you have the facility to email Grisoft and ask them for a list of alternate servers.
pjemmanuel
Grafter
Posts: 349
Registered: 05-04-2007

unable to resolve web address and update avg

Forgot to mention, for the users of the free version, because you can't change the server being contacted, you have to use a little workaround.
The free version update server is at guru.grisoft.com, but if you add the following line to your hosts file
193.86.103.19  guru.grisoft.com

it will redirect the AVG updater to use www.grisoft.com, which is often quicker.
Community Veteran
Posts: 1,817
Thanks: 11
Registered: 30-07-2007

unable to resolve web address and update avg

just completed a reinstall, and all is now working again.

once again many thanks for all the help.

A