Database Users

T-Mobile US APN Settings for MMS

I have found about 20 different posts that all list different APN settings for T-Mobile US. Does anyone know what they should be for sure? Please only post if you are able to SEND MMS. I seem to be able to receive MMS, but can never send MMS. I have gotten it to work a couple times on some builds but the same settings don't seem to work on other builds.
Posting the settings is great but if you have a backup file from "APN Backup and Restore" that would be even more convenient.
Thanks

I fought with this same problem for a while, trying every setting i found in all the threads. One way i finally found that allowed me to send and recieve was to make 2 APN's, one with the standard epc.tmobile.com and nothing else, and another named t-mobile mms with the following settings:
APN: T-Mobile MMS
Proxy: None
Port: None
Username :none
Password: none
Server: none
MMSC: http://mms.msg.eng.t-mobile.com/mms.wapenc
MMS Proxy: 216.155.165.050
MMS port: 8080
MCC: 310
MNC: 260
I got the idea for using multiple APN's when i looked at my girlfriend's my touch slide's settings. Hope that helps!

Thanks. I'll give that a try and let you know how it goes. I read once that there are different settings for PPP and RMNET. I wonder if that's why I was able to get it to work on some builds and not others.

Name: T-mobile US
APN: epc.tmobile.com
Proxy: not set
Port: not set
Username: not set
Password: not set
Server: not set
MMSC: h ttp://216.155.174.84/servlets/mms
MMS Proxy: 216.155.165.50
MMS Port: 8080
MMS protocol: WAP 2.0
MCC: 310
MNC: 260
Authentication type: not set
APN type: default,supl,mms
THANKS pretzdothack AND deadmansink !!!!!!!!!!!!
as per another thread!
i use this and it works but the pictures are still fuzzy

WaveyKat said:
Name: T-mobile US
APN: epc.tmobile.com
Proxy: not set
Port: not set
Username: not set
Password: not set
Server: not set
MMSC: h ttp://216.155.174.84/servlets/mms
MMS Proxy: 216.155.165.50
MMS Port: 8080
MMS protocol: WAP 2.0
MCC: 310
MNC: 260
Authentication type: not set
APN type: default,supl,mms
THANKS pretzdothack AND deadmansink !!!!!!!!!!!!
as per another thread!
i use this and it works but the pictures are still fuzzy
Click to expand...
Click to collapse
this particular mmsc worked for me!

ok
Thanks!!!!!!!

jay-red said:
I fought with this same problem for a while, trying every setting i found in all the threads. One way i finally found that allowed me to send and recieve was to make 2 APN's, one with the standard epc.tmobile.com and nothing else, and another named t-mobile mms with the following settings:
APN: T-Mobile MMS
Proxy: None
Port: None
Username :none
Password: none
Server: none
MMSC: http://mms.msg.eng.t-mobile.com/mms.wapenc
MMS Proxy: 216.155.165.050
MMS port: 8080
MCC: 310
MNC: 260
I got the idea for using multiple APN's when i looked at my girlfriend's my touch slide's settings. Hope that helps!
Click to expand...
Click to collapse
Thanks for these settings that u shared. This was the only APN that worked for my friend to get mms on tmobile prepaid with an AT&T Xperia Play 4g. They only get 2g/Edge, but I feel they even got an increase in speed from the "telekila"APN that was on the phone even if its small increase within 2g. Thanks everyone.

What are the correct apn settings for T-Mobile prepaid? Speedtest.net is reporting my location WAY off and pings are through the roof even though data speeds are just fine.

Solution for MMS sending difficulties anyone?

Wheel just keeps a spinnin and spinnin!
Wonder if it has to do with apn settings? They do indicate mms and Internet on the bottom setting.
Any suggestions appreciated? Who wants to be able to create these cool notes and not be able to send??

whats your plan, per or post pay, and what apn settings did you use, there are a lot of threads which address this.

I have a GoPhone $50 unltd.with apns suggested for this.
I DID walk in to att with my Note, and said cust service suggested I ask for a new sim cars and got a 4G card (vs the designated GoPhone) one, and that's when the problems started now that I think about it.
So my apn needs might have changed.
Ill have to play around with them.

Network speeds are way better...just no MMS.

rockky said:
I have a GoPhone $50 unltd.with apns suggested for this.
I DID walk in to att with my Note, and said cust service suggested I ask for a new sim cars and got a 4G card (vs the designated GoPhone) one, and that's when the problems started now that I think about it.
So my apn needs might have changed.
Ill have to play around with them.
Click to expand...
Click to collapse
definitely do not disclose to att that you have a smartphone.
I have the 50/month unlimited voice/text/web/data gophone att plan and my speeds are very good. i cant compare to network speed but im coming from tmous3g and it is close.
i registered the sim card in an older nokia e72, then once it worked fully, i swapped it into my gnote. not sure if att will catch the data usage and ding me for the overage as if it were a smartphone, but until that happens this is a brilliant workaround.
Cingular APN from the SGS2:
Name: Cingular 410
APN: wap.cingular
Proxy: null
Port: null
Username: [email protected]
Password: CINGULAR1
Server: cingulargprs.com
MMSC: http://mmsc.cingular.com
MMS Proxy: wireless.cingular.com
MMS Port: null
MCC: 310
MNC: 410
Authentication type: null
APN Type: internet + mms

Question: I have the same APN settings as you just posted on my SGS 2, just curious what average speeds are you getting on G Note? I am getting about 3 mgps downld, 1.1 upload.
I tried to change the apn to different settings and no speed difference. Is this setting faster on G nOte?
Thank you

carlitos66 said:
Question: I have the same APN settings as you just posted on my SGS 2, just curious what average speeds are you getting on G Note? I am getting about 3 mgps downld, 1.1 upload.
I tried to change the apn to different settings and no speed difference. Is this setting faster on G nOte?
Thank you
Click to expand...
Click to collapse
i haven't checked yet but id guess im in that range, which im quite happy with at 50/month. i'm at work currently and the signal is bad here so ill have to check later or tomorrow.
best,
jason

4g apn
there is another thread that list an APN just for the 4g sim from att. search for that thread.

You got off topic
The question was about MMS not working on the Note, not about your plans. Please stick to the topic in order to help this person

I was having issues with my mms as well. I tried multiple apn settings but nothing. What finally fixed it was inputting the apn settings below in the go SMS application itself. And using those apn settings on the phone. My speeds are not as good as a couple of the other apns but I now have working mms and fully functional phone. I pulled the apn settings off of my infuse.
Name
AT& T 310 410
Apn
Wap.cingular
MMsc
http://mmsc.cingular.com
Mms proxy
wireless.cingular.com
Mms port
80
Mcc
310
Mnc
410
Apn type
Internet + mms
Only change these settings and leave everything else (not set).
Sent from my GT-N7000 using xda premium

I'm also on AT&T and for some reason my APN has changed a couple of times on it's own. . In fact it just happened earlier today and I had the exact same problem as you. For some reason the MMS port was blank so I changed that back to 80. Also there was info in the username and password and I deleted both out. It worked again right after I made those changes.
I can give you the rest of my settings if those changes don't work for you. I'm using the settings that have been posted for AT&T unlimited data.

I copied the settings out of my brothers cappy, and finally got MMS working. Settings in the other thread weren't working for me. Im getting 3-7Mbs down and a MB up. Im post paid, with a 4G sim and so called "unlimited data".
Name: ATT WAP
APN: wap.cingular
Proxy: wireless.cingular.com
Port: 80
Username: (not set)
Password: (not set)
Server: (not set)
MMSC: http://mmsc.cingular.com
MMS Proxy: wireless.cingular.com
MMS Port: 80
MCC: 310
MNC: 410
Authentication type: (not set)
APN Type: internet + mms

[Q] ATT Blocking 3G Data Plan for Galaxy Tab 7.7

I just purchased a new Galaxy Tab 7.7 from Negri. I went to ATT to get a new DATA ONLY SIM card for the device but it will not work properly.
The device sees the DATA SIM and has 4 bars but I cannot get online.
If I put the DATA SIM into my old Galaxy Tab 7 it works just fine. I can also put my iPhone SIM into my 7.7 and it works fine.
I took the DATA SIM back to the ATT store and they told me that because it can be used as a phone the system is blocking it from using a 3G Data SIM. They also gave me a new DATA SIM just in case but that did not work.
Possible Solutions?
1. Is there something I can tell ATT to get the data only block removed.
2. Is there an alternate APN setting that I can use that will allow me to use 3G Data only.
3. Something else?
Stock APN Settings: (Works with iPhone SIM not with 3D Data SIM)
Name: Cingular 410
APN: wap.cingular
Proxy:
Port:
Username: [email protected]
Password:******* (anyone know what the actual password is?)
Server:cingulargprs.com
MMSC: http://mmsc.cingular.com
MMS Proxy: wireless.cingular.com
MMS Port:
MCC: 310
MNC: 410
Authentication Type:
APN Type: Internet + MMS
APN Protocol: IP4
Alternate APN Setting from ATT Support: (Does not with 3D Data SIM)
Name: ATT WAP
APN: wap.cingular
Proxy: wireless.cingular.com
Port:80
Username:
Password:
Server:
MMSC: http://mmsc.cingular.com
MMS Proxy: wireless.cingular.com
MMS Port: 80
MCC: 310
MNC: 410
Authentication Type:
APN Type: Internet + MMS
APN Protocol: IP4

Shurafa said:
I just purchased a new Galaxy Tab 7.7 from Negri. I went to ATT to get a new SIM card for the device but it will not work properly.
The device sees the SIM and has 4 bars but I cannot get online.
If I put the SIM into my old Galaxy Tab 7 it works just fine. I can also put my iPhone SIM into my 7.7 and it works fine.
I took the SIM back to the ATT store and they told me that because it can be used as a phone the system is blocking it from using a 3G Data SIM. They also gave me a new SIM just in case but that did not work.
Possible Solutions?
1. Is there something I can tell ATT to get the data only block removed.
2. Is there an alternate APN setting that I can use that will allow me to use 3G Data only.
3. Something else?
Stock APN Settings: (Works with iPhone SIM not with 3D Data SIM)
Name: Cingular 410
APN: wap.cingular
Proxy:
Port:
Username: [email protected]
Password:******* (anyone know what the actual password is?)
Server:cingulargprs.com
MMSC: http://mmsc.cingular.com
MMS Proxy: wireless.cingular.com
MMS Port:
MCC: 310
MNC: 410
Authentication Type:
APN Type: Internet + MMS
APN Protocol: IP4
Alternate APN Setting from ATT Support: (Does not with 3D Data SIM)
Name: ATT WAP
APN: wap.cingular
Proxy: wireless.cingular.com
Port:80
Username:
Password:
Server:
MMSC: http://mmsc.cingular.com
MMS Proxy: wireless.cingular.com
MMS Port: 80
MCC: 310
MNC: 410
Authentication Type:
APN Type: Internet + MMS
APN Protocol: IP4
Click to expand...
Click to collapse
Have you tried using the above settings for MMS, and using the "Phone" APN for WAP yet?
Just set your APN to Phone, and leave everything else blank. Modify the second APN you listed to MMS only instead of Internet and MMS. See if that works.

You must have it named "Broadband". All the other settings seem right- that was my experience last weekend. Here are my settings:
capture_09.jpg by lulugirl896, on Flickr
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"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

Yep, you have to add the "Broadband" APN. That's what I'm using with the SIM from my AT&T Elevate hotspot.

lulugirl896 said:
You must have it named "Broadband". All the other settings seem right- that was my experience last weekend. Here are my settings:
capture_09.jpg by lulugirl896, on Flickr
Click to expand...
Click to collapse
This worked! Thank you! I spent the entire morning at the ATT store then the entire afternoon with Technical support. Nobody had a clue. Final verdict was that I HAD to get a Phone plan in order to get this to work.
How is your data speed with this APN? I am getting ping=100ms down=1.0-2mb up=100k-1mb. (same as my iPhone so that is a good sign)

Shurafa said:
This worked! Thank you! I spent the entire morning at the ATT store then the entire afternoon with Technical support. Nobody had a clue. Final verdict was that I HAD to get a Phone plan in order to get this to work.
How is your data speed with this APN? I am getting ping=100ms down=1.0-2mb up=100k-1mb. (same as my iPhone so that is a good sign)
Click to expand...
Click to collapse
Your speeds seem normal. I guess I hadn't read your OP properly to see that you were using a data-only SIM. In addition to the Broadband APN, isp.cingular also works.

Jade Eyed Wolf said:
Your speeds seem normal. I guess I hadn't read your OP properly to see that you were using a data-only SIM. In addition to the Broadband APN, isp.cingular also works.
Click to expand...
Click to collapse
Is there a difference between the two APNS? Any reason to use one over the other?
What are the settings for isp.cingular?

Shurafa said:
Is there a difference between the two APNS? Any reason to use one over the other?
What are the settings for isp.cingular?
Click to expand...
Click to collapse
In most cases, the speeds are about the same. The isp.cingular is the legacy APN, so you may get higher ping times, but as more and more folks use the Broadband and Phone APN's, sometimes the old APN can be faster overall as it becomes less crowded. Either way, it's nice to have options at your disposal

Shurafa said:
This worked! Thank you! I spent the entire morning at the ATT store then the entire afternoon with Technical support. Nobody had a clue. Final verdict was that I HAD to get a Phone plan in order to get this to work.
Click to expand...
Click to collapse
I had the same experience-it was the 3rd technical support person I spoke to that finally got me up and running and it was that one word (broadband) that had been the issue.

Intl Version 7.7
Just want to chime in here. I have the 7.7... I purcahsed it online. Its the 3G version. Now all I did was take my SIM card out of my dumb phone (LG c500) and placed it in my Tab 7.7 and it worked for data and phone calls. I was able to keep it on with the $10 unlimitted data (for non smartphones) since AT&T system (at the time) saw it as an unsupported PHONE. Well after a few weeks I began getting text messages stating something regarding I need to purchae a data plan ... something to that effect, however the device still shows up as non-supported. so i put my sim back in my old LG c500 for a few days and then back into my 7.7 and I am good to go. Check out this story also
http://consumerist.com/2012/02/man-sues-att-for-throttling-his-iphone-service----and-wins.html

You should have just gotten a normal plan PLEASE READ
Shurafa said:
I just purchased a new Galaxy Tab 7.7 from Negri. I went to ATT to get a new DATA ONLY SIM card for the device but it will not work properly.
The device sees the DATA SIM and has 4 bars but I cannot get online.
If I put the DATA SIM into my old Galaxy Tab 7 it works just fine. I can also put my iPhone SIM into my 7.7 and it works fine.
I took the DATA SIM back to the ATT store and they told me that because it can be used as a phone the system is blocking it from using a 3G Data SIM. They also gave me a new DATA SIM just in case but that did not work.
Possible Solutions?
1. Is there something I can tell ATT to get the data only block removed.
2. Is there an alternate APN setting that I can use that will allow me to use 3G Data only.
3. Something else?
Stock APN Settings: (Works with iPhone SIM not with 3D Data SIM)
Name: Cingular 410
APN: wap.cingular
Proxy:
Port:
Username: [email protected]
Password:******* (anyone know what the actual password is?)
Server:cingulargprs.com
MMSC: http://mmsc.cingular.com
MMS Proxy: wireless.cingular.com
MMS Port:
MCC: 310
MNC: 410
Authentication Type:
APN Type: Internet + MMS
APN Protocol: IP4
Alternate APN Setting from ATT Support: (Does not with 3D Data SIM)
Name: ATT WAP
APN: wap.cingular
Proxy: wireless.cingular.com
Port:80
Username:
Password:
Server:
MMSC: http://mmsc.cingular.com
MMS Proxy: wireless.cingular.com
MMS Port: 80
MCC: 310
MNC: 410
Authentication Type:
APN Type: Internet + MMS
APN Protocol: IP4
Click to expand...
Click to collapse
If you just get a non-smartphone and get a normal plan ........ add $15 for the non smartphone unlimitted data and you would be good to go. that's what I did and last month I was at 3.5GB of data and did not get throttled. The device will be an unrecognized device on at&t and you will only pay the $15 for data. Well worth getting the plan or just adding a line of service. Just don't tell them its a tablet. In fact you could just as easily pick up a go phone for $14 to $15 bucks and use the sim card.

thank you for this thread. spent a long time with AT&t and could not get this to work. I have a data only plan.
this worked great.

[Q] Speedtest.net and Nexus 4 problem

I have the Speedtest.net app on my Nexus 4 and ever since I got the phone I can't properly run a test my ATT speeds. On Wifi it works great but when I turn off Wifi, Speedtest freaks out and it either gives me a very high ping around 260ms and the download is ALWAYS 0.01Mbps and upload stays around 0.5Mbps or sometimes it won't even connect and gives me error but I do get an IP and I can surf the web so it's not a connection issue.
I've attached a screenshot of what it looks like.
My main question is why can't it pick up a regular download speed? I never had this problem with my Galaxy Nexus.
Thanks

Probably the proxy settings in your APN. Remove those and you should be good. Post up the settings from the APN you're using if you're not sure what to edit.

bedoig said:
Probably the proxy settings in your APN. Remove those and you should be good. Post up the settings from the APN you're using if you're not sure what to edit.
Click to expand...
Click to collapse
Are you talking about the ATT APN settings?
If that's the case yeah, here is what it says:
Name: ATT WAP
APN: wap.cingular
Proxy: wireless[dot]cingular[dot]com
Port: 80
Username: Not set
Password: Not set
Server: cingulargprs.com
MMSC: h t t p : / / mmsc[/url][dot]cingular[dot]com/
MMS proxy: wireless[dot]cingular[dot]com
MMS port: Not set
MCC: 310
MNC: 410
Authentication type: Not set
APN type: default, supl, mms
APN protocol: IPv4
APN roaming protocol: IPv4
APN enable/disable si grayed out but it's checked and enabled
Bearer: Unspecified
Out of this what do I need to change if anything? And why should I since every other app has no problem accessing the internet but only this one?

Emo113 said:
Are you talking about the ATT APN settings?
If that's the case yeah, here is what it says:
Name: ATT WAP
APN: wap.cingular
Proxy: wireless[dot]cingular[dot]com
Port: 80
Username: Not set
Password: Not set
Server: cingulargprs.com
MMSC: h t t p : / / mmsc[/url][dot]cingular[dot]com/
MMS proxy: wireless[dot]cingular[dot]com
MMS port: Not set
MCC: 310
MNC: 410
Authentication type: Not set
APN type: default, supl, mms
APN protocol: IPv4
APN roaming protocol: IPv4
APN enable/disable si grayed out but it's checked and enabled
Bearer: Unspecified
Out of this what do I need to change if anything? And why should I since every other app has no problem accessing the internet but only this one?
Click to expand...
Click to collapse
Delete everything out of the Proxy setting. [Edit - you can delete the data out of the Port entry directly below Proxy as well]
I would guess that AT&T probably blocks or throttles this on their side to control bandwidth.

Yup, that did it, but wow I'm getting some really crappy results.. under 1Mbps

If your account is provisioned for HSPA+ you'll probably get better speeds using the phone or pta APN. There are a couple recent threads discussing this. I'll link later if you can't find anything.
Sent from my Galaxy Nexus using xda app-developers app

Had the same issue. I created a new APN with the server name phone now all is well.
Search here and you'll find more details.
Sent from my Nexus 4 using Tapatalk 2

Emo113 said:
Yup, that did it, but wow I'm getting some really crappy results.. under 1Mbps
Click to expand...
Click to collapse
I had that too with no change to my APN settings so I switched to Tmobole on straight talk and saw a difference. I might switch back to At&t on straight talk in the coming weeks ....
Sent from my Nexus 4 using Tapatalk 2

Emo113 said:
Are you talking about the ATT APN settings?
If that's the case yeah, here is what it says:
Name: ATT WAP
APN: wap.cingular
Proxy: wireless[dot]cingular[dot]com
Port: 80
Username: Not set
Password: Not set
Server: cingulargprs.com
MMSC: h t t p : / / mmsc[/url][dot]cingular[dot]com/
MMS proxy: wireless[dot]cingular[dot]com
MMS port: Not set
MCC: 310
MNC: 410
Authentication type: Not set
APN type: default, supl, mms
APN protocol: IPv4
APN roaming protocol: IPv4
APN enable/disable si grayed out but it's checked and enabled
Bearer: Unspecified
Out of this what do I need to change if anything? And why should I since every other app has no problem accessing the internet but only this one?
Click to expand...
Click to collapse
USA AT&T use these settings
Name: AT&T HSPA+
APN: phone
Proxy: Not set
Port: Not set
Username: Not set
Password: Not set
MMSC: http://mmsc.mobile.att.net
MMS Proxy: proxy.mobile.att.net
MMS port: 80
MCC: 310
MNC 410
Authentication type: Not set
APN type: default,admin,fota,mms,supl,hipri
APN protocol: IPv4/IPv6
APN roaming protocol: IPv4/IPv6
Bearer: Unspecified
you should get around 5-7 mbps, and MMS works correctly (both sending and receiving)
If these settings DO NOT work, then you need to call AT&T and have them upgrade your data plan to allow 4G! This will be free of charge.

ragnarok_ said:
If these settings DO NOT work, then you need to call AT&T and have them upgrade your data plan to allow 4G! This will be free of charge.
Click to expand...
Click to collapse
No no no, don't do this or use those settings.
OP, you didn't mention that you are on a MEdia Net plan (dumb phone plan) and that is confusing the people trying to help you. Any time you mention cellular issues, you should specify the plan you are using.
Now, OP I can tell from your APN that you ARE on a MEdia Net plan. Next time, I would recommend you search the subforum for MEdia Net it will bring you to this thread, where the issue has been identified and resolved.
I posted on page 3 regarding the issue, which uses the same resolution that bedoig prescribed: delete the entry for proxy.
Now, being that you are on the MEdia Net plan, you won't be able to get speeds above 875KB/s down (7Mbps), even on HSPA+:15. AT&T apparently caps all dumb phone plans to that bandwidth. You won't get LTE and the phone/PTA APNs will not work for you. Those are smartphone APNs, so you should only use the default APN (which was automagically selected for you) but you can delete proxy to use bandwidth tests.
You could switch to a more expensive DataPro plan to get marginally faster speeds, but you'll be capped at 2GB/month and there's a chance you'll be caught tethering. I don't recommend you switch to DataPro for the very slight and unnoticeable upgrade in speed. AT&T doesn't monitor data use on MEdia Net plans so you can use well over 2GB on your current plan without issue. As I've mentioned in that thread and in several of my posts, I've once used over 12GB in a month; tethering for myself, my roommate, as our many guests because Comcast was being sheisty.
Now you've got all the info you need, and see that it was already available in another thread. I would recommend this thread for deletion because it adds clutter, not value. If people search for this answer, they will be linked to both threads.

Thats not necessarily true, my apn was originally the wap cingular one as well because I was using a nexus one prior, upon changing to the 'phone' apn, everything worked.
Depends how much the op is currently paying for data plan I guess if those settings don't work.
Sent from my Nexus 7 using Tapatalk 2

Well if it is going by plan, I have the grandfathered 'unlimited' plan and the APN settings seemed to work for me. Yup, 12Mbps down here!

I got another problem. Once I do a test and the speedtest uses GPS. GPS doesn't switch off and kills my battery unless I do a reboot.
I'm running AOKP, so it could be a problem related to that.

That's insane
GunninZombiesdown said:
Well if it is going by plan, I have the grandfathered 'unlimited' plan and the APN settings seemed to work for me. Yup, 12Mbps down here!
Click to expand...
Click to collapse
What are your APN settings? The stock ones? I'm getting about 4 Mbps down, nowhere near yours. Where do you live?

AssassinFuze said:
What are your APN settings? The stock ones? I'm getting about 4 Mbps down, nowhere near yours. Where do you live?
Click to expand...
Click to collapse
Im using the APN from the first page. I live in Cleveland, and ya, it's completely dependent on your location/network there (at least it seems to be).

Same problem here
Sent from my Nexus 4 using Tapatalk 2

Speedtest has never worked for me on this phone. I get aping but that's it.. maybe 30 seconds later I get a connection issue and the option to "try again".
<sent from my Nexus 4>

Coreym said:
Speedtest has never worked for me on this phone. I get aping but that's it.. maybe 30 seconds later I get a connection issue and the option to "try again".
<sent from my Nexus 4>
Click to expand...
Click to collapse
Did you ever resolve your problem? I have a friend on att striaght talk and he has your exact same issue.

HELP! With MMS on Tmobile Note 4 on ATT Network

Tmobile Note 4 on ATT network. When I initially got it I called ATT and they set the APN remotely and made sure everything worked. LTE worked perfectly, MMS also worked perfectly.
I ran into some issues with xposed and had to do a full factory reset from recovery. The issue is that instead of getting my MMS as a picture I now get a download button which I have to press to download the picture. It's a major pain, sometimes I get a lot of pictures at a time and to sit there and wait for each to download really sucks.
I called ATT again but this time got a clueless rep. She made me manually change my APN as follows: This didn't help at all. Anyone have any suggestions?
Name: ATT HSPA+
APN: phone
Proxy: not set
Port: not set
Username: not set
Password: not set
Server: not set
MMSC: http://mmsc.mobile.att.net
Multimedia message proxy: proxy.mobile.att.net
Multimedia message port: 80
MCC: 310
MNC: 410
Authentication type: not set
APN type: default,supl,mms,hipri
APN protocol: IPv4
APN roaming protocol: IPv4
Bearer: unspecified
Mobile virtual network operator type: none
Mobile virtual network operation value: not set

spinedoc said:
Tmobile Note 4 on ATT network. When I initially got it I called ATT and they set the APN remotely and made sure everything worked. LTE worked perfectly, MMS also worked perfectly.
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You are in the wrong forum but try changing the name of your APN to AT&T Next Gen and change the APN to nxtgenphone then make the type default,supl,mms,hipri,admin,internet