AT&T appears to be disconnecting me from SSH and FTP connections -anyone else?

As I mention in this link on the AT&T forums:

http://forums.att.com/t5/Data-Messag...s/td-p/3231261

I have noticed that, as of this week, FTP and SSH connections made from my Galaxy Nexus phone (unbranded, unlocked, bought from Google) are being terminated after about 10 seconds. This has never happened to me before. I called AT&T tech support several times, and their answer each time, in the end, was basically "Sorry, we can't help you, and we have no information on why this is happening."

I have tested it on other phones, with the same result; everything's fine when I'm connected via WiFi, but when on AT&T's network, these disconnects happen. Someone on the AT&T forum suggests AT&T may be forging RST packets to force disconnects.

Has anyone had this happen to them? Anyone know if there's any way I can talk to someone at AT&T who can actually confirm what they're doing?

- Tim

On Thu, 14 Jun 2012 23:12:29 -0700 (PDT), Timby wrote:

> As I mention in this link on the AT&T forums:
>
> http://forums.att.com/t5/Data-Messag...s/td-p/3231261
>
> I have noticed that, as of this week, FTP and SSH connections made from my Galaxy Nexus phone (unbranded, unlocked, bought from Google) are being terminated after about 10 seconds. This has never happened to me before. I called AT&T tech support several times, and their answer each time, in the end, was basically "Sorry, we can't help you, and we have no information on why this is happening."

Is it possible that what you're seeing is at&t's way of enforcing their
data cap on their [yes,it's not really all that] unlimited service?

Your other questions, alas, I have no answers for at all, sorry. HTH.

Cheers, -- tlvp
--
Avant de repondre, jeter la poubelle, SVP.

On Thursday, June 14, 2012 11:20:09 PM UTC-7, tlvp wrote:
> Is it possible that what you're seeing is at&t's way of enforcing their
> data cap on their [yes,it's not really all that] unlimited service?
>
> Your other questions, alas, I have no answers for at all, sorry. HTH.
>
> Cheers, -- tlvp

Sadly, this doesn't appear to be the case - I've been keeping tabs on my data usage, and, with about 10 days left for this month's billing period, I've used about .5g of my 2g limit, so I'm nowhere close to my cap.

So it must be some other reason. I suspect they either have instituted an only-known-by-them "security" policy based on a profile of some sort (usingan unbranded device, using less popular protocols, etc), or based on some kind of sniffing to determine tethering possibilities, or something of thatsort.

It's kind of sad that they won't let their users know what their own data rules actually are, beyond some generic sounding statements.

Hopefully we will all find out (hopefully the way Comcast was boo'd down bytheir users for lack of net neutrality).

- Tim

On Thursday, June 14, 2012 11:20:09 PM UTC-7, tlvp wrote:
> Is it possible that what you're seeing is at&t's way of enforcing their
> data cap on their [yes,it's not really all that] unlimited service?
>
> Your other questions, alas, I have no answers for at all, sorry. HTH.
>
> Cheers, -- tlvp

Sadly, this doesn't appear to be the case - I've been keeping tabs on my data usage, and, with about 10 days left for this month's billing period, I've used about .5g of my 2g limit, so I'm nowhere close to my cap.

So it must be some other reason. I suspect they either have instituted an only-known-by-them "security" policy based on a profile of some sort (usingan unbranded device, using less popular protocols, etc), or based on some kind of sniffing to determine tethering possibilities, or something of thatsort.

It's kind of sad that they won't let their users know what their own data rules actually are, beyond some generic sounding statements.

Hopefully we will all find out (hopefully the way Comcast was boo'd down bytheir users for lack of net neutrality).

- Tim

Hmm, the mystery continues. As of today, the problems went away.
Other people I've talked to who had similar disconnect issues that only popped up this week, also found them going away today.

Very strange - somebody fixed something... but WHAT? What happened to cause it in the first place? I wonder.

Perhaps someone read this very thread and said "oops!" Let's hope so! :-)

- Tim

On Fri, 15 Jun 2012 10:51:58 -0700 (PDT), Tim Bessie wrote:

> Hmm, the mystery continues. As of today, the problems went away.
> Other people I've talked to who had similar disconnect issues that only popped up this week, also found them going away today.
>
> Very strange - somebody fixed something... but WHAT? What happened to cause it in the first place? I wonder.
>
> Perhaps someone read this very thread and said "oops!" Let's hope so! :-)
>
> - Tim

I take it, from the dearth of updates, the problem has *stayed* away?

Cheers, -- tlvp
--
Avant de repondre, jeter la poubelle, SVP.

On Saturday, June 16, 2012 11:40:46 AM UTC-7, tlvp wrote:
> I take it, from the dearth of updates, the problem has *stayed* away?
>
> Cheers, -- tlvp
> --
> Avant de repondre, jeter la poubelle, SVP.

As of today, it is still working correctly, yes.

For myself, I'm going to wait several billing cycles before I feel confident about it; for all I know, they'll put their config changes back that broke things. I'll report back here if it happens again, in any case.

- Tim

On Sat, 16 Jun 2012 21:25:45 -0700 (PDT), Tim Bessie wrote:

> On Saturday, June 16, 2012 11:40:46 AM UTC-7, tlvp wrote:
>> I take it, from the dearth of updates, the problem has *stayed* away?
>>
>> Cheers, -- tlvp
>> --
>> Avant de repondre, jeter la poubelle, SVP.
>
> As of today, it is still working correctly, yes.
>
> For myself, I'm going to wait several billing cycles before I feel confident about it; for all I know, they'll put their config changes back that broke things. I'll report back here if it happens again, in any case.
>
> - Tim

Good deal! Thanks. -- tlvp
--
Avant de repondre, jeter la poubelle, SVP.