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Sun, Apr 5, 2020 2:29 PM
Ever since recently moving to ATT internet with BGW210 router I have been getting error messages Dsldevice.domain_not_set.invalid error messages
22 days ago
2 months ago
From what I've found, it looks like it is a mismatch on the network settings, but most people say it's not worth trying to correct if everything is working fine. If you do want to investigate it further, try removing any 3rd party equipment from your setup to see if you have this issue. Also, doing a factory reset on the gateway may help with correcting some of the configurations.
David, AT&T Community Specialist
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i seem to have been able to fix it. It turns out the errors were generated when using Outlook email connection on my iOS devices. By disabling SSL in the advanced options of the email account settings , the error messages have stopped. Thanks for your response.
We're glad to hear you were able to resolve your issue, @nal305!
If you ever need any further assistance, don't hesitate to reach back out. We'll be here, and more than happy to help!
Donovan, AT&T Community Specialist
I am having the same error message, only when browsing websites.
I will click a link, or load a page, and get a certificate mismatch error, or that the site may be trying to steal my data.
If I have it show me the certificate, it is issued to Dsldevice.domain_not_set.invalid, and issued by Dsldevice.domain_not_set.invalid. With an experation date of 5/29/2025.
It doesn't happen all the time, but when it happens, it does it on every device trying to access the internet at that moment.
If I let it try to open the 'suspect' website, it loads the BGW210-700 Device Status page instead of the intended page.
I've worked with support, and they have updated the firmware on the modem, reset the modem to factory, and even gone as far as replaceing the modem.
But the issue is still occuring.
@MikeB7332 I've also been having this problem since switching to AT&T recently. Let me know if you found a solution to this please!
(The action suggested by @nal305 above, disabling encryption, does not seem like a correct or safe solution.)
a month ago
They have sent me two new modems..
The first replacement was worse than the original.
The one I got yesterday is better that the one before it, but it's still not good.
I work on a IT help desk for a nation wide company, and I'm seeing this issue with many co-workers with AT&T for thier ISP.
Skype and Teams lose connection, VPN disconnects, certificate errors, our endpoint security software thinks its behind a captive portal, VOIP calls cut out.
I have not attempted to contact support yet today to let them know I'm still having this issue after the third modem.
At this point, it's hard for me to belive it's the modem that is causing this.
And you are right @mnutsch , disabling SSL is NOT a good answer. Or even POSSIBLE in many cases.
@MikeB7332 I found an article online stating that this might be caused by AT&T performing its own "man in the middle" attack as a way to track and sell subscriber internet activity.
I turned off the AT&T permissions that allow snooping and selling traffic just now. It is too soon to tell if that made a difference or not though.
• Login to your account @ AT&T.com
• From the user menu, choose "View Profile"
• Choose "Communication Preferences"
• Review all choices under "Privacy items"
Edit: The above did not fix the issue for me. It turned out to be a defective ONT (wall unit). Call AT&T and ask them to come inspect and fix your internet if you have this issue.
I am having this same issue with the BGW210. I tried changing the communication preferences as per @mnutsch's suggestion but it hasn't fixed the problem. Has anyone found another solution?
@mnutsch I figured I would give it a shot but am getting a "system not cooperating message" and it says "welcome back undefined undefined." Ugh. Worth changing those privacy settings even if it won't fix this problem. But I guess I need to "try again later."
I continue to have the problem described above with the dsldevice.domain_not_set.invalid. Even when I get an "autodiscover outlook" certificate problem/naming error, if I drill in, that same dsldevice.domain indicator is there saying it is the problem. I am constantly getting kicked off my wifi when this happens, presumably as it is periodically exchanging domain certs. Sometimes it will just come back up itself after I click a few "yes, proceed" buttons. Sometimes I have to restart my computer! It is extremely annoying and I have to think has something to do with the new modem.
No way am I going to disable SSL, as suggested, and I can't imagine on my work computer I can even do that, let alone other devices.
I know this is an ATT problem as it does not occur when I am at another location where I have different service.
ATT - what is the fix for this?! Please help. There are so many of us working from home, and unstable wifi is a huge problem!
@ATTHelp the problem is everything is not working fine. There must be a way to fix this!
After three modems and several chats with support, I finally let them send out a tech.
The tech pulled the ONT, and said all of the optical connections were dirty.
He cleaned and inspected all of them (at least one took a several attempts to get clean, he showed me what it looked like on the microscope/camera device he had), and replaced the ONT.
24 hours have passed, and I haven't seen ANY of the issues I was having.
The tech said the installer could have accidentally touched the ends without realizing it.
Fingers crossed this holds!!
What's the "ONT"?
I have a tech here now (2nd visit) and he's been checking all the connections on the house, at the pole, etc. I don't see him anymore so hopefully he hasn't left!
@ATTHelp this also shows up as a privacy error:
This started for me today (5/1/20) with cert errors and SSL errors on YouTube's website, then I also had the Outlook error stated by the original poster. I haven't been able to fix it by reboots and it must be something on AT&T's end.
ACE - Expert
Those cert errors can be indicative of a malware infection. Look at the cert you're getting. Check your DNS settings to be sure they're what you expect.
Doubt that's the issue if several of us are having it.. also using CloudFlares DNS, which all check out fine..
This has been resolved for me - at least it appears that way - I haven't had the cert errors or privacy warnings for about a week. ATT tech came back to my house (2nd visit) after monitoring remotely for a few days, noting that it would be fine for hours and then fall off a cliff with errors. He worked on the lines themselves - cleaned up the "box" on my house which turned out to have an unnecessary splitter in it from old true DSL days. He then worked on it at the first pole nearest my house. Found some issues, including between that pole and the next one. He then traced it to three more poles down the hill and said he found old "twisted" (?) wires that were ancient and pre-ATT in various locations. He worked on the whole thing for about five hours! He told me exactly what he did but frankly I didn't totally understand it all as it was about wiring/splicing/twisting and how it all connects back to the closest "transmitter." If your local tech wants to be in touch with the guy who worked on mine: Eric B, Splicing Technician. UUID: EB2527 707.260.4322
We did not need to change the Gateway equipment, and tech told me that the firmware is up to date. There was indeed a higher version out there, but it had bugs and was rolled back to 2.6.4.
Hope this helps!
@mnutsch I saw your question but it doesn't show up in this thread (?). I just called regular ATT Support number and after an hour on hold, got a live person. This was the beginning of the adventure. They did some testing and then sent out the tech. 800.288.2020
Hi @mkossman Glad to know I'm not crazy - I have been having this exact same issue for weeks now, and it's been incredibly frustrating considering those that can, are working from home right now. I'm assuming aside from trying to change the AT&T permissions on my account, I may also need to get a tech out here. Would that be your suggestion?
24 days ago
Indeed. Give them a call and ask them to run diagnostics on the line. When they did that for me, they saw a bunch of errors, and that's when they sent the tech. Appt was pretty quick - just two days later. No charge for this work since it is outside the house.
Thanks @mkossman! AT&T sent a tech out after I called them. He was able to diagnose the problem and fix it. It turned out to be a defective ONT (wall unit for fiber optic).