No incoming internet over Wifi - Android - Firewall Issue

Avast Mobile Security Avast Mobile Security for Android
1

I have been using the avast on my Android - Samsung Epic 4G - 2.3.6 - Rooted. I have also been using the firewall option. Recently I have started having problems accessing internet over Wifi.

A few days back I was trying to change some avast firewall settings from “Deny Selected” to “Allow Selected”. In one of the iterations I remember a message that stated firewall rules could not be applied. Since those changes I have not been able to access internet over Wifi. Internet works perfectly over 3G.

I have since disbaled/enabled the firewall, rebooted several times, even uninstalled/installed avast. However, I am unable to get internet over Wifi. Please note that I am able to send outgoing mails through email client over Wifi. Hence, there is definitely internet, it’s just that none of the apps are able to get an incoming connection, as if they are blocked.

Can you please suggest a way to
A. Change/Check any settings
B. Provide you with some dump that you can analyze
C. Clear any residual rules that may be stuck somewhere, even if it means working under root.

2

Hi,

I forwarded your problem to Reinhard which is responsible for the Firewall, unfortunately he is kinda unavailable right now, but I’m sure he will get back to you as soon as possible.

Filip

3

Thanks. Looking forward to a fix for my problem… dreading to do a factory reset.

4

OK guys if you run into any problem with the firewall, do the following:

Disable firewall.
Then, from the command line:

adb shell
su
cd /data/data/com.avast.android.mobilesecurity/app_bin
cat avast_firewall.sh

Store the contents of this file.

Then enable firewall.

Store the contents of the file (see above).

=> now send those contents together with a detailed error description to our support.

5

Okay so I have been able to fix my problem with the following steps only yesterday. Note, this was before the new version was released. Hence, the fix is possible on the older versions as well.

This is what I did,

  1. Enabled Firewall
  2. Selected all the system type apps including browser and the bunch of apps at the bottom of the list, those that have more than 2 components.
  3. Allowed Selected and applied rules
  4. Blocked Selected and applied rules
  5. Deselected All but 1 insignifcant app and applied rules
  6. Disabled Firewall
  7. Restarted the Phone

Wifi now works hassle free.

Thanks for the response. Let me know if you need to still want me to upload the file from adb.