Weird network access issues

[angelo "angico" costa]

Hi, all!

I'm experiencing some weird network access issues. I'm using Qubes 3.1.

After logging in to the system, sys-net, sys-firewall and sys-whonix start as expected, and network access is normally available. I can use apps such as OwnCloud, qBittorrent, Firefox and others to connect to several internet services and they all work fine. But suddenly, and I just cannot specify when, the apps start to fail connecting. One such app that most catches my attention with respect to the problem is OwnCloud, which reports connection failure -- though other devices such as an Android tablet or even another notebook running Debian, tell me Internet access is absolutely normal, including access to my OwnCloud server.

I've already tried restarting the VMs related to network connection -- sys-net and sys-firewall -- but the problem persists, and it's happening with two different notebooks -- an Acer Aspire with Intel Core i7, 10GB RAM, 1TB HD and an unbranded one with equal CPU. 8GB RAM, and 640GB HD.

Does anybody have experienced such issues? Does anybody have any hint on what may be the cause of those issues and on how I can solve them?

TIA and best regards to you all,

Angico.

[Andrew David Wong]

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I haven't experienced that (and can't recall any similar reports off the top
of my head). If you're connecting via Tor, then that's probably the reason.
Otherwise, it may be your Wi-Fi connection or network.

- --
Andrew David Wong (Axon)
Community Manager, Qubes OS
https://www.qubes-os.org
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[Drew White]

According to what you are saying it sounds like it's not an issue with Qubes, but with your connection.

You say you have the issue from Android Tablet, a Notebook running Debian, and your Qubes PC.

If not all 3 are running Qubes, then it isn't a Qubes issue.

[bi...@fucked-up.net]

Perhaps I experienced the same issue. It happened to me a few times,
seemingly random. Suddenly my AppVMs are not connecting to anything
outside Qubes anymore. the only VM that was connecting was sys-firewall.
The next time it happens I will write down what exactly I am
experiencing and if the connection between the VMs are working properly.

I also use a skylake i7 cpu, perhaps there is some connection? *shrug*

regards
bisam

[Marek Marczykowski-Górecki]

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Wasn't that after starting some AppVM by a chance? If so, check status
or qubes-firewall service in sys-firewall:

sudo systemctl status qubes-firewall

You may also try restarting this service.

- --
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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[bi...@fucked-up.net]

On 08/30/2016 05:35 PM, Marek Marczykowski-Górecki wrote:
> On Mon, Aug 29, 2016 at 04:00:01PM +0200, bi...@fucked-up.net wrote:
>> On 08/26/2016 11:23 PM, angelo "angico" costa wrote:
>>> Hi, all!
>>>
>>> I'm experiencing some weird network access issues. I'm using Qubes 3.1.
>>>
>>> After logging in to the system, sys-net, sys-firewall and sys-whonix start as expected, and network access is normally available. I can use apps such as OwnCloud, qBittorrent, Firefox and others to connect to several internet services and they all work fine. But suddenly, and I just cannot specify when, the apps start to fail connecting. One such app that most catches my attention with respect to the problem is OwnCloud, which reports connection failure -- though other devices such as an Android tablet or even another notebook running Debian, tell me Internet access is absolutely normal, including access to my OwnCloud server.
>>>
>>> I've already tried restarting the VMs related to network connection -- sys-net and sys-firewall -- but the problem persists, and it's happening with two different notebooks -- an Acer Aspire with Intel Core i7, 10GB RAM, 1TB HD and an unbranded one with equal CPU. 8GB RAM, and 640GB HD.
>>>
>>> Does anybody have experienced such issues? Does anybody have any hint on what may be the cause of those issues and on how I can solve them?
>>>
>>> TIA and best regards to you all,
>>>
>>> Angico.
>>>
>
>> Perhaps I experienced the same issue. It happened to me a few times,
>> seemingly random. Suddenly my AppVMs are not connecting to anything
>> outside Qubes anymore. the only VM that was connecting was sys-firewall.
>> The next time it happens I will write down what exactly I am
>> experiencing and if the connection between the VMs are working properly.
>
> Wasn't that after starting some AppVM by a chance? If so, check status
> or qubes-firewall service in sys-firewall:
>
> sudo systemctl status qubes-firewall
>
> You may also try restarting this service.
>
>

I will note the results the next time it happens. thank you anyway!