I have to disable my avast antivirus to use my internet?

since i updated my avast i have had a problem with my internet, it doesnt matter if im using firefox, chrome, internet explorer < lol or other web browsers. If i disable avasts shields the internet works fine? any help?

many thanks - Rob

Did you upgrade via the user interface? If yes:

I’d recommend a clean install of v9.0.2011.

  1. Download Avastclear, Rejzors uninstall tool and the appropriate Avast program edition

http://files.avast.com/iavs9x/avast_free_antivirus_setup.exe
http://files.avast.com/iavs9x/avast_pro_antivirus_setup.exe
http://files.avast.com/iavs9x/avast_internet_security_setup.exe
http://files.avast.com/iavs9x/avast_premier_antivirus_setup.exe

Avastclear : http://files.avast.com/iavs9x/avastclear.exe
Rejzors Uninstall tool: http://rejzor.wordpress.com/avast-cleanup-tool/

  1. Uninstall Avast by control panel [If you don’t have Avast in control Panel go to #4]
  2. Uninstall in safe mode using Avastclear.
  3. Run Rejzors Uninstall Utility in Normal Mode (removes traces avastclear doesn’t) - reboot.
    Check : Once uninstalled check in device manager>view>show hidden devices if there is anything related to avast with a yellow triangle… if so, uninstall it and reboot.
  4. Install the version you downloaded.
  5. Reboot.

I done what was mentioned above and i still have to disable the shields to brows any further help?

What was your previous anti-virus before Avast?

Run a quick scan with Malwarebytes to eliminate any chance of infection?

Which avast suite? (free, pro etc)?

The most common cause of this is something blocking avast, firewall, etc.

What is your operating system and firewall ?
Does it allow avastSvc.exe internet access ?

  • If it does delete the entry for it and reconnect to the internet, this should force the firewall to ask permission again.

I have just installed windows 7 - 64 Bit and Avast is always my choice of anti virus so there is no chance of being infected? and its the standard free antivirus.

I read somewhere that the web shield might be being blocked by the firewall but when i went into my firewall then add a program to be allowed i couldnt find the web shield in the avast folder?

There is no web shield file as such, you are looking for the avastSvc.exe as I mentioned in my post.

You didn’t say what is your firewall is ?

My firewall is the standard windows firewall too, and i added avastSvc.exe but still didnt do anything and i had to disable the shields to get back online

Windows Firewall and Avast don’t have issues…

You never answered which program edition of Avast you are using (home, pro)…

I’d also run a Malwarebytes scan for the purpose of it…

I guess its home edition ? not sure its just the normal “Free” anti virus and i will download Malwarebytes now and run a scan

Sorry, my mistake. I should have typed in “free”. Once you’ve ran a scan, could you clarify the exact version of your avast? Program version.

Nothing found from that scan > Malwarebytes Anti-Malware 1.75.0.1300
www.malwarebytes.org

Database version: v2013.12.18.09

Windows 7 x64 NTFS
Internet Explorer 8.0.7600.16385
robs :: ROBS-PC [administrator]

18/12/2013 23:46:01
mbam-log-2013-12-18 (23-46-01).txt

Scan type: Quick scan
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 202264
Time elapsed: 2 minute(s), 47 second(s)

Memory Processes Detected: 0
(No malicious items detected)

Memory Modules Detected: 0
(No malicious items detected)

Registry Keys Detected: 0
(No malicious items detected)

Registry Values Detected: 0
(No malicious items detected)

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 0
(No malicious items detected)

Files Detected: 0
(No malicious items detected)

(end)

Also im running program version 2014.9.0.2011

I honestly am now clueless here… last thing to suggest… an avast repair…

Control Panel>Program And Features>Uninstall a Program>Avast>Change>Repair and follow instructions… then reboot (important)

Okay ill do this now, thank you for your suggestions tho