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Contributor

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1 Message

Fri, Aug 24, 2018 4:07 PM

unknown message not found

iPhone 8+ iOS 11.4.1 I have received two of the Unknown Message Not Found text.  Worried I am missing something important about work. Sometimes have a bad signal when in a certain room of my house, but wasn't in there when I got the text.  

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Brand User
ATTHelp

Administrator

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112.8K Messages

2 years ago

What's going on, @BeppyB!

 

The issue is generally caused by iMessage and Facetime. We recommend disabling both features then powercycling your device by turning it off then on again before enabling activity on both apps.

 

To disable iMessage and Facetime:

 

Open Settings > select Messages > deactivate iMessage by swiping the slider to Off. Navigate back to Settings > select Facetime > slide the slider to Off to disable Facetime.

 

We hope this information helps! Let us know how this worked.

 

Lar, AT&T Community Specialist

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Contributor

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1 Message

2 years ago

This is not an iMessage or Facetime issue, as it's started happening to me and I'm on Android (S7).

 

I have...

Both soft and hard reset.

Cleared messaging cache.

Disabled messaging, cleared phone cache, rebooted.

 

Still persists.

 

The troubleshooting tool from ATT  gave me the magnificent solution to "turn off messaging." 

 

Going through the forums, I see at least a dozen threads from this year with the same issue. 

Tutor

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7 Messages

2 years ago

I'm having the same issues.  I don't have facetime or imessage.  I have an android and I just did a chat with AT&T tech, he did a reset of my network, but that didn't work either.  I have cleared cache, soft start, hard start, erased apps that are old or unused.  Still happening.  

 

Factory restart is not a solution. 

 

Mine is very random.  It isn't every message, but it seems to be happening more and more. I know they are from people on my contacts that it is happening with.  I have to ask them to resend and hope I get it.  Sometimes I do, sometime not.  

Tutor

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4 Messages

a year ago

I have heard that this is an issue often for Group Text (MMS) between iPhone and Android users. I have been getting these messages from an 8 person group text chat and only get this randomly from iPhone users. It is very annoying because sometimes it allows me to tap to download and the message will come through, but 80% of the time it does not and shows up as "Unknown Sender: Message not found"

 

It seems like ATT must be aware of this if it is so common and suggest some fixes....

Contributor

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1 Message

a year ago

This is happening to me now. Over a hundred unknown messages from a group chat I've been in for a few years now. 

Contributor

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1 Message

a year ago

Same with me.

Contributor

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3 Messages

a year ago

Very annoying and I can’t get any resolution either . 

Tutor

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7 Messages

a year ago

What has worked for me is to delete the conversation for the ones I text with the most and that has seem to fix the problem. 

Contributor

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2 Messages

a year ago

I’m having this issue as well it started this morning I’ve done all the resets and such and it just continues to spam more it’s highly annoying and frustrating. 

Contributor

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2 Messages

a year ago

I’m having this issue as well it started this morning I tried resetting my network and turning off iMessage/FaceTime it’s highly annoying and frustrating. 

Contributor

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1 Message

a year ago

I get the same thing:
From "Unknown": "Message not found"
I have tried finding a solution via the internet and with AT&T support.  What I have found:
-  This is NOT a problem with any particular make or model of phone.  "Solved" issues on forums seem to want to just tell you how to change settings for iPhone.  Obviously it's not an iPhone issue as many Android users are commenting with the same problem.  And guess what?  I have a Windows phone! 
- This problem has dated back YEARS from looking at various problems but yet AT&T is totally oblivious to the issue.
- There generally doesn't seem to be any fix to this.
I can send MMS messages but I cannot receive them.  When I do I just get the Unknown/Not Found message.

So frustrating!

Contributor

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1 Message

10 months ago

I have an Android phone and am also having this very frustrating issue. It seems to be happening more frequently but I've experienced it randomly for at least a year. Most often it occurs in a group message which includes at least one iphone; however, I have had it happen in group messages and even single messages with my family....all Android users. I've tried everything I can think of. 

Contributor

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1 Message

9 months ago

I have the same message. I have an Android.

Contributor

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2 Messages

8 months ago

Shut off group messaging. Problem solved 

Contributor

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1 Message

8 months ago

I just got 2 of these "unknown message not found" last night and 2 this morning.  In this instance, I happen to know that these came from my work, and were all sent to: ##my_number##@mms.att.net

 

The other thing in my case, is that I recently switched from the default 'Messages' app that came on my Samsung S7 to the 'Messages' app by Google LLC.

 

I've never had this issue before now.

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