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New Member

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6 Messages

Wed, Jul 1, 2020 2:28 AM

Recent AT&T firmware upgrades breaking application pinholes?

For a long time I had a pinhole set up on my 5268 router that was working perfectly.  Then about 3-4 months ago it stopped working.  Not a showstopper - I had a workaround.  At that time, I had a strong suspicion that it was due to a recent firmware update that had been installed.  Recently I've grown tired of using the workaround (it's a hassle to use and has some negative side effects) so I called support, we went thru a few basic troubleshooting steps, but in the end they sent me a new router.  The new router had firmware version 11.5.1.532678-att.  I set up the pinhole and I was amazed that it actually worked (I expected the router to come with latest firmware that I thought was broken).  But then later that night (or early next morning) at 2am I watched as the router shut down then restarted - obviously a firmware update and my heart sank.  Would my pinhole still work?  NOPE.  I confirmed in the Upgrade Logs that version 11.6.1.532887 had just been installed.  Now again, like before when it first started happening, I get firewall logs that say "IN=br1 MAC=14:ed:bb:XX:XX:XX SRC=X.X.133.4 DST=99.X.X.X TTL=107 PROTO=UDP DPT=51502 Drop Unknown Incoming Packet" even though my firewall status screen shows the pinhole is still configured:

DeviceAllowed ApplicationsApplication TypeProtocolPort Number(s)Public IP
Linksys12345MyApplication-udp5150299.X.X.X

 

(I've randomized/anonymized the actual values and hidden my IP and actual port number for privacy, but the essential representation is still accurate.  And to be clear, the Linksys is another router that I have inside the AT&T router for additional ports and additional security.  The Linksys is NOT the problem - everything worked fine with this same setup, when it worked.)

 

I'm about at the end of my rope for tolerating this issue.  AT&T says they cannot revert to a previous firmware.  I could do that by doing a factory reset, but there's nothing that would stop the firmware from upgrading again every night.  They've been unable to resolve the issue with the pinhole.  

 

Am I the only one experiencing this???  I don't want to switch back to Spectrum, but only because it's a hassle to go thru.  But if AT&T can't fix this then I will have to do exactly that.  I want to give them every last possible chance, so I'm posting here because it's my last hope.  For the record, everyone I've talked to at AT&T tech support has been very friendly and wanted to help, so I'm not bitter... but they haven't been able to solve the problem, because I don't think there is a solution immediately available - I'm pretty convinced that the firmware is just broken.  I'm just frustrated and hoping someone here has gone thru this and found a solution.

 

TIA...

 

Responses

Brand User
ATTHelp

Community Support

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127.3K Messages

a month ago

Hi @flmbray,

 

We are here to help with the concern on the pinhole not working on the 5268. 

 

We know you are using a special workaround before the firmware update, but have you tried to do a factory reset on the 5268?  

 

I attached the document on how to configure the port forwarding and DMZ mode in the gateway interface for your reference. Hope this helps. 

 

Please let us know if you need further assistance. 

 

Thanks, 

 

WallaceW, AT&T Community Specialist. 

 

 

 

 

 

 

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New Member

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6 Messages

Hello WallaceW, thanks for responding... But this does not solve my issue. 

 

First, if you are referring to "DMZplus" mode (as it's called in the 5268 UI) I do not want to set up DMZplus mode - I only want a single port to be forwarded.  (For the record, the document you linked does NOT describe how to turn on DMZplus mode, so maybe you are referring to the pinholes and calling it "DMZ" but if so, that's a bit misleading.)

 

Second, I know how to configure port forwarding - it was working ever since I switched to AT&T about 2 years ago, up until the point when it stopped working a few months ago.  I also used to be a network engineer in a "prior life" (I held Cisco CCNP and CCDP certifications, and I passed the written CCIE test before switching to software engineering about 15 years ago) so I have no doubt that the basics of my configuration are correct.  It's possible I may be missing some nuance, but an entry-level document such as the one you linked contains no additional knowledge.  You can see from my original post that the pinhole is already configured.

 

Finally, I have not yet attempted factory reset, for the reason I provided in the original post.  Although that may reset the firmware, I fully expect, and the support person I was talking to confirmed, that after the factory reset, it will simply update itself again at night.  I do not want to have to factory reset and reconfigure every day.  However, YES, I will be attempting a factory reset prior to cancelling my account, but today is not a good day - I have important issues to deal with at work tonight and over the next couple of days (I work from home, via VPN/RDP, so my internet connectivity is absolutely critical).  I will certainly attempt that remedy closer to the weekend.  Even so, I do not expect I will get more than a few hours of a correctly-functioning router before it re-updates its firmware and I'm dead again.

 

My request, if you can swing it, is to get me in touch with someone that is an expert - maybe even a software developer that works on the firmware code.  I really find it hard to believe that I'm the only one experiencing this issue.  If I am, and I'm actually doing something wrong, I've yet to find anyone that can explain it to me.  I don't mind being wrong... I hope I am.  Because again, I don't want to go thru the hassle of switching back to Spectrum.  Please save me as a customer!

 

(edited)

Brand User
ATTHelp

Community Support

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127.3K Messages

Hi @flmbray, 

 

We apologize for the confusion. 

 

Yes, the factory reset will not change the updated firmware. We have reached out to our advanced hardware support and they have submitted a ticket to verify if there is any defect on the new firmware. In the meantime, we ask for your patience while our support group looking into this issue. 

 

Thanks, 

 

WallaceW, AT&T Community Specialist. 

Still need help? Ask a question! Our 1.4 million members typically respond within 1 hour.

*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.

New Member

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6 Messages

@ATTHelp WallaceW,

 

OK...  when can I expect a further response?  A few days?  A week?  More than that will be painful, and this shouldn't be that hard to test.

New Member

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6 Messages

Any results???

New Member

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6 Messages

23 days ago

Last attempt...  any results?

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