Avg firewall blocks internet in windows 10

I've had this same issue 3 times and just now - through this post - I have found a light to what may be happening. I have the paid AVG Ultimate anti-virus installed on my windows 10 laptop and I've had to reinstall windows 2 times already in just 2 months because AVG will not uninstall completely in any other way. I have lost entire days of work and I cannot see here (or anywhere else, for that matter) a definitive solution for this issue. Any alternative to having to reinstall windows on my laptop again? Please help…!

I'm an I.T. professional and have been using AVG and recommending it to clients for many years with few problems. Since the ZEN update I've been having issues with client computers as well as my own. Right after the update from the prior version on my laptop, the wireless stopped working. I'm using the FREE edition with NO firewall. There are no AVG protocols bound to my wireless adapter, but the second I disabled AVG the connection started working immediately.
I've had to uninstall / reinstall the product completely to solve some issues on client computers, which usually works. I haven't tried it yet on my laptop.
I understand every software product has technical challenges, but this version seems to have been released a little too soon, especially the product update module. Perhaps AVG should just perform a complete uninstall / reinstall during their update as a temporary fix.
I'll update if I find any additional fixes or information.

Hi There
I am also having the same really annoying problem as Richard D.
I am running Windows 7 - 64 Bit.
I cannot open Internet Explorer.
I cannot open a link with uses Internet Explorer
I can open Chrome with AVG running. If I temporarly disable AVG then IE works great.
This has happened after I made the update to version 16.71.7597 today.

Please can someone help - Thanks.

Hello Bel. I apologize for the inconvenience caused. Could you please let us know whether you have received any blocking popups from the AVG program and please check whether your firewall mode is set to automatic? Thank you.

What, if I disable AVG on the host PC, the one, linked to the router and modem, to resume Windows Defender, in lieu with Malwarebytes; and leave AVG operational on the Wi-Fi connected (second) PC?

Please, respond! I really need a feedback.

Thank you very,very much!

Abel,
I apologize for the delayed response. Please be informed that AVG 2017 don't use the "AVG Network filter driver" as previous versions. Please provide more details regarding what have you been experiencing with your internet. This will help us to assist further.
Thank you.

Hi AVG, 

Firstly, if so many people have the same issue why not just post the answer and stop wasting peoples time? instead of "check your email bla bla crap" 

Secondly, the exact same issue is happening on windows 10 with avg updated almost 2 years after the post was made, why the hell am i paying you guys to write shitty code and not fix it? do you not alpha or beta test updatesd before releasing them? 

I have 4 computers in the office that have this issue, something that i should have been able to read the thread and find the answer and resolve, now i will be waiting for days to have a response "in my email". you have 24 hours to resolve this issue or i will change to another provider. As other providers take their customers security seriously.

The only answer that really works is from Avinash, repeated below.
However, the only way AVG works is by disabling a part of it… That's funny (not quite!!)
Now I don't know if I am protected enough, because I disabled a part.
----------------------
Maria,
Have you tried this steps mentioned below (provided earlier on this thread) to fix the issue?
Make sure the Firewall is disabled, then…

1. Open Control Panel
2. Open Network Sharing Center
3. Click the link to "Local Area Connection" in the Connections area on the right
4. Click Properties 
5. You should see in the list of items one called "AVG network filter driver" - if this has a tick, deselect it and then click OK
6. The remaining windows and then turn the Firewall back on - hopefully this should work!

I have the same problem! Every day I have to uninstall to get my internet back and the reinstall to be protected, which costs me about 30 minutes of my working day. ´This is intolarable! I use the FREE version, but was going to buy the full version. Unless this problems is fixed within the next 2 days, I am going to buy McAfee. I can't NOT be protected and I can't NOT be connected to internet. Please advise.

Hello I am having the same issue.

Windows 10 - just updated

AVG Ultimate - firewall blocks all internet traffic. Tried setting it to interactive and no alerts come up and can't use the internet. Had to diable the firewall to be able to get online. 

The Windows 10 updates that ocurred today were:

Security Update for Microsoft OneNote 2013 (KB3115256) 32-Bit Edition

Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB3176495)

Security Update for Skype for Business 2015 (KB3115431) 32-Bit Edition

Security Update for Microsoft Outlook 2013 (KB3115452) 32-Bit Edition

Windows Malicious Software Removal Tool for Windows 8, 8.1, 10 and Windows Server 2012, 2012 R2 x64 Edition - August 2016 (KB890830)

Security Update for Microsoft Office 2013 (KB3115427) 32-Bit Edition

Security Update for Microsoft Word 2013 (KB3115449) 32-Bit Edition

Security Update for Microsoft Office 2013 (KB3114340) 32-Bit Edition

I also updated AVG Ultimate but the firewall still doesn't allow any internet traffic.

 

Had the same problem, AVG pro. A few months ago I solved the problem but cannot remember what I did. 
Again- 1 PC connected via ethernet cable to router, no internet with AVG firewall on. Other laptops, mobiles and tablets in the house all running AVG work just fine.
Followed Bruce Levitan steps ( first to come with this solution in January) and PC works fine again.
Another problem is AVG pop-ups telling me the connection is not secure/ trusted, although it is my home connection. Clicking buttons for option or 'I trust this network' do absolutely nothing as the pop-up is completely unresponsive.
Useless AVG support, all they can say is we are sorry for your problem and that they understand your frustration … most probably with an indian accent. Last year with AVG for my household.

Horrible software, sorry but this has caused us so much damage!

Blocking all traffic through browsers and we thought it was caused by update from Windows 10.

I cant really see why this hasnt been fixed from your end.

I am in the same predicament.  Long time customer.  Run AVG on all devices in my house.  I have only upgraded one machine to Windows 10, and sometimes it just decides to stop allowing any browser traffic.  I disable AVG firewall (set to ALLOW ALL) and everything starts working.  Is there any kind of solution yet?  You've clearly told plenty of people to gather data now.

Thanks,
Josh

It comes to something when a Customer publishes the answer and not AVG themselves…


Matt Higgins
Ok so I managed to fix my issue by doing the following steps.
1) Go to Install AVG on your PC, Mac | AVG installation files
2) Go to the installation tab and download AVG remover.
3) Once uninstalled, go onto MY AVG account and redownload the AVG you are subscribed to.
4) Close all browsers and programs
6) Reinstall AVG
7) Once installed login to your AVG account when the profram requests it
8) Once logged in and finished setting up it will ask you to OPEN BROWSER with a big green link at the bottom of the AVG App
9) Click this, agree to let AVG install and change everything - you can change your homepage etc back later if you want.
10) Once it's all done that should be it.

It worked for me anyway - hopefully this will help some of you

I have been looking at this issue for the last couple of days and it looks like AVG firewall is messing with ISATAP traffic. Anything that is translated from IPv6 to IPv4 is allowed trhough but no IPv4 direct traffic gets through. There must be something that the firewall is looking for in the packets as IPv6 is disabled on my ISP connection so that translation is happening within my ISP's network.

Same issue, using paid AVG. Never had an issue with the free version. This is very frustrating especially considering from this thread alone we can see its going unresolved for a year now at least!!!

I am also havign this problem with Windows 10 & AVG Zen. Its not all the time but if I turn all protection off, I can access the web. If I then turn it back to automatic it seems to be OK for  a while but then blocks everythign again (no web access at all).  As with above, I like AVG and have used free version for years. Only in last year have swapped to paid and am not sure what to do now. My firewall is set to automatic and I haven't noticed any popups from AVG. The computer shows a connection to the web but its not as any web page just hangs.

My neice upgraded to Windows 10. She has the exact same symptoms. I can ping google.com for example, but cannot browse the web. If I disable AVG, the browser works.

Uninstalling AVG fails.  Upgrading it also fails.

If I disable AVG, Windows Firewall still says that AVG is controlling its settings.

What is going on here?!  This is causing much frustration for my neice trying to submit her work for her uni studies.  I would love to have some direction and guidance here, and urgently!

Many thanks

Hello,

I had exactly the same problem. Suddenly my internet stopped working and after many restarts (pc + router) I found that AVG firewall was causing the problem. I disabled it and all is working again. All was working well yesterday.
Now I switched to manual mode for the firewall (interactive mode). I was in automatic mode before.

Any solution for this?

Thanks

Hi there,

I, too, am having the same issue.

Talked to an AVG rep over the phone, who advised me, after disabling the Firewall, to uninstall AVG and install it again. 


however, after reading the above correspondence, I am not sure that this would work. 

I'm sharing two PC's. The host, the one connected with the router and modem is in Windows10 and it's experiencing the problem.

the other PC, in windows7 (with avg 2015 and Malwarebytes, as the first one) is working just fine over the wi-Fi.

ideas, please!

Thank you in advance for your time and consideration with regard to that matter.