Avast WEBforum

Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: bexhillphoto on July 27, 2010, 05:39:49 PM

Title: Unable to access other computers on network
Post by: bexhillphoto on July 27, 2010, 05:39:49 PM: Hi there

We've recently upgraded computers [1] & [2] of our 6 computers to Avast Internet Security, and are now experiencing network issues. When switched on, the Avast firewall on appears to be blocking in/out communications with other computers on the network. If I temporarily disable the firewall, everything is fine and I can access the files on computer [2] via computer [1], and via the other network computers.

Computers are running XP Pro.
I have added the network internal IP range to the 'friends' list in the advanced firewall settings.
Windows Firewall is disabled.
Full virus/malware/spyware scans have been run on these computers and anything dodgy has been removed.

If this is the wrong forum to post in, I do apologise!
Title: Re: Unable to access other computers on network
Post by: bexhillphoto on July 28, 2010, 09:54:45 AM: Anyone? ???
Title: Re: Unable to access other computers on network
Post by: Asyn on July 28, 2010, 10:31:52 AM: Read here...
http://support.avast.com/index.php?languageid=1&group=eng&_m=knowledgebase&_a=viewarticle&kbarticleid=482
asyn
Title: Re: Unable to access other computers on network
Post by: bexhillphoto on July 28, 2010, 10:44:41 AM: I have read through that, unable to find anything helpful apart from specifying the IP range as 'friends'. I've done this, but it hasn't helped.
Title: Re: Unable to access other computers on network
Post by: Eric March on July 28, 2010, 11:29:10 AM: Hi!

Just to have asked this… The correct IP-range..?

If Avast is on, does PING still work or is this blocked, too?
Title: Re: Unable to access other computers on network
Post by: bexhillphoto on July 28, 2010, 11:37:01 AM: Definitely the correct IP range, I followed the IP range instructions in asyn's link, but of course altered to suit our network.

With Avast Firewall switched on, I tried pinging computer [1] from computer [2], but it failed, all requests timed out, 100% packet loss
Title: Re: Unable to access other computers on network
Post by: Asyn on July 28, 2010, 04:01:06 PM: Which other security software is installed..??
asyn
Title: Re: Unable to access other computers on network
Post by: bexhillphoto on July 28, 2010, 04:47:09 PM: No other anti-virus/firewall.

Computer [1] has Spybot S&D, but that isn't going to cause any problems.
Title: Re: Unable to access other computers on network
Post by: Asyn on July 28, 2010, 04:50:19 PM: Quote from: bexhillphoto on July 28, 2010, 04:47:09 PM
Computer [1] has Spybot S&D, but that isn't going to cause any problems.

Sometimes it did cause problems together with avast 5.x...
asyn
Title: Re: Unable to access other computers on network
Post by: timcan on July 29, 2010, 12:44:40 AM: @ bexhillphoto
Hi, are you're settings correct under firewall settings>expert settings>firewall policies>packet rules>windows networking ?
Title: Re: Unable to access other computers on network
Post by: bexhillphoto on August 03, 2010, 04:33:57 PM: Quote from: RNfromTN on July 29, 2010, 12:44:40 AM
@ bexhillphoto
Hi, are you're settings correct under firewall settings>expert settings>firewall policies>packet rules>windows networking ?

What is the 'correct' setting?
I checked and by default Windows Networking wasn't ticked, so I ticked it 'on' and set it to in/out
Title: Re: Unable to access other computers on network
Post by: timcan on August 03, 2010, 10:15:36 PM: Quote from: bexhillphoto on August 03, 2010, 04:33:57 PM
Quote from: RNfromTN on July 29, 2010, 12:44:40 AM
@ bexhillphoto
Hi, are you're settings correct under firewall settings>expert settings>firewall policies>packet rules>windows networking ?

What is the 'correct' setting?
I checked and by default Windows Networking wasn't ticked, so I ticked it 'on' and set it to in/out

Hi ,with this rule enabled does things work now?
If it does I'd modify the rule "address" box to only your local network ip range.
hope that helps
Title: Re: Unable to access other computers on network
Post by: bexhillphoto on August 04, 2010, 02:03:58 PM: Unfortunately not ???
Title: Re: Unable to access other computers on network
Post by: Asyn on August 05, 2010, 08:00:24 AM: Quote from: bexhillphoto on August 04, 2010, 02:03:58 PM
Unfortunately not ???

http://www.avast.com/contacts
asyn
Title: Re: Unable to access other computers on network
Post by: bexhillphoto on August 17, 2010, 04:49:38 PM: Well, this is getting ridiculous - the only reply so far has been them requesting a hijackthis log - which I submitted 10 days ago! Still no response...