Version 2.6.0 and 2.6.0.1 not allowing WiFi

[Gitoffthelawn]

Upgraded from v2.5.2 to v2.6.0 (F-Droid) on a KitKat device. WiFi and cell data working as expected with v2.5.2. With v2.6.0, cell data works perfectly, but WiFi gets no response.

Before I spend hours trying to figure it out (already spent 1 hour!), any idea why this would happen? No other changes made beside upgrading F-Droid to v2.6.0 and rebooting.

[ukanth]

Please post iptables rules.

[vestingz]

Can confirm. Just reverted to 2.5.2, rewrote iptables rules and it worked again.
Edit: Network Log showed outgoing packets, but no incoming.

[Gitoffthelawn]

@vestingz Thank you so much for confirming. That's exceptionally helpful.

Did you revert to 2.5.2 via F-Droid?

When I tried to do that, it issued a severe warning about potential data loss, and given that AFWall+ is a root app, I didn't want to mess anything up. Any troubles with reverting?

@ukanth Can you imagine any troubles with reverting from 2.6.0 to 2.5.2 via F-Droid?

[ukanth]

It should not, I need logcat/iptables rules to look at

[vestingz]

@Gitoffthelawn No, neither WLAN nor mobile worked so i downloaded the apk to my lap and manually installed 2.5.2 after uninstalling 2.6.0.

[Gitoffthelawn]

@vestingz Thanks. When you say "neither WLAN nor mobile worked", do you mean after downgrading using F-Droid?

Also, do you have any logs/iptables you can give to @ukanth?

[vestingz]

@Gitoffthelawn No, before. sorry for being unclear. It seemed like the iptables of 2.6.0 allowed outbound traffic only on both adapters as Network Log recorded. Unfortunately i didn't save any logs, sorry.

[ukanth]

@Gitoffthelawn , I have not received any report. Please send it again. Also try to catch this output as well

iptables -S ( in console) and send it to me.

[ukanth]

@Gitoffthelawn , May I know to which email id you are sending these emails. Because I'm not getting those.

[Gitoffthelawn]

Yes, you may. :) I sent the first one to cumakt+afwall@gmail.com and the second to cumakt+github@gmail.com, so they should have both gone to cumakt@gmail.com

[ukanth]

Nope, not by email, but got it via the above link. it seems password protected.

[Gitoffthelawn]

Spent a couple hours performing some experiments. Here's a summary of what I learned:

• Cannot use F-Droid to downgrade from v2.6.0 to v2.5.2: it fails every time
• AFWall+ v2.6.0.1 (manually installed from apk) had the same problems with WiFi as v2.6.0
• Manually reverting to v2.5.2 fixed all the WiFi issues (using the same settings as with v2.6.0 and v2.6.0.1)

[ukanth]

@Gitoffthelawn, Unfortunately I can't open the zip with the hint you provided.

Also I tried reverting the change which might have caused this issue, purely based on my guess. If you can test this, would be great.

@vestingz ..

https://www.dropbox.com/s/rm6v7xurvna63fw/AFWall%2B%20TEST%202.7.0.apk?dl=0

[ukanth]

@Gitoffthelawn , looks like you have spelled it wrong or I have some other firstname/lastname. I tried all combinations !

[ukanth]

@Gitoffthelawn , Since you have uploaded the service which encrypts the zip, the password doesn't seems to work.

[Gitoffthelawn]

@ukanth My apologies; the file definitely had an issue. Try this: http://dropjar.com/#1mqaazi6

This issue was getting cluttered, so I cleaned up what I could. You may desire to do the same.

[vestingz]

@ukanth Thanks for the link :) I will test within the next days.
@Gitoffthelawn What's wrong with posting your rules on pastebin or equal?

[Gitoffthelawn]

@vestingz Pastebin has been overloaded and was only showing this: http://pastebin.com/i/503.jpg

What's "equal"? Do you have a url?

[vestingz]

@Gitoffthelawn paste.ee | 0bin.net | pastie.org | nopaste.me just to name a few.

[aligitor]

I have similar problem, I am not sure if it's the same or not. Have an UMI Zero phone with KitKat, I flashed a custom CyanogenMod rom on it (Lollypop), but I had problems with connecting to wifi networks. I used the newest stable release of afwall+ on it. I thought it's a bug in the rom, and after one month I flashed the original official rom (a fresh new install, not a backup file). Had the same issue, even though I tried a dozen of roms and configuration on it. I gave up, thinking that it must be a hardware problem.

Now I got a Huawei P8 Lite phone (Android 6 Marshmallow). The wifi worked fine, even after unlocking the bootloader and rooting the phone. However after I installed the newest afwall+ from F-Droid, the wifi stopped working, showing the same symptoms as my UMI.

Disabling afwall, downgrading or removing didn't help. I had a full backup of the working state of the system (with TWRP), restoring the backup didn't help either. I also tried to remove all iptable rules from terminal with the commands I found here: https://www.digitalocean.com/community/tutorials/how-to-list-and-delete-iptables-firewall-rules (The 'Flush All Rules, Delete All Chains, and Accept All' section).

Mobile data works fine.

Is there anything afwall+ may changed in the core system settings which could "survive" after factory reset or installing new roms?

I heard that some system apps may try to ping google servers, and if they can't, some wifi networks may be blocked as it doesn't provide internet connection. I used afwall in "allow selected" mode, system processes were blocked too. (However enabling them didn't solve my problem.)

I also try to use my Android without Google Account: Play Store, Youtube, GMail, Drive and other GApps are frozen with Link2sd. (I used my UMI for a year this way, and didn't have problem with wifi.)

If you think that my problem is related to this issue, feel free to ask for logs or anything. I also appreciate any help or suggestion.

[Gitoffthelawn]

@vestingz Unfortunately, I haven't had time to work on this at all. Did you have a chance to try out the test version that @ukanth posted?

[ukanth]

This should be addressed in the latest release. Please feel free to reopen if required.