Final update on this issue for the night - after doing extensive google search (well not really - just did the following search rogers mms "ipv6" which means search for posts with rogers, mms, including ipv6.
Discussion since 2013 on this topic including one from RogersDave network engineer, now moved on to Hitron.
In 2013 - some phones did not support IPv6 and all network settings were set to use IPV4 only and many phones only had that capability.
Phones began to come into play in 2013 and 2014 with LTE capability but many networks were not using IPV6 yet, so you had to be sure on newer phones, the settings were IPV4 only in the APN settings (see my earlier post).
Then IPV6 comes along, people start having issues - network provisioning for MMS from Rogers is changed to include IPV4, IPV6, or both - set as both by default in provisioning to your phone and account on network for APM MMS, but roamin was left as IPv4 by default - choice was there.
Now WIFI calling comes into play and from reading, when set to WIFI calling WIFI preferred, the MMS data would try to send to the WIFI, but obviously it can't be sent via WIFI - phone and SMS can. So, it roams looking for a connection, but IPV4 is the setting on roaming, so it can't connnect to the LTE data on IPV6.
Lots of discussion over last 4 years about need to set both to IPV4 and 6, even on rogers Forums boards.
But Rogers APN settings on support when you search does not speak to the IPV4 6 issue at all, just gives the ip address settings (all IPV4 - or gives the domain addresses - by default provisioning does not use IPV6 or 4, but uses domain addresses, which is best practice as addresses can change, but companies rarely change domain address (DNS).
So to fix the problem - change those settings - you will not be able to edit the default Rogers APN settings, these are provisioned from network and may occasionally reset back to default, except that it seems that in @janice11 's last interaction, they reset the network provisioning and pushed out the new settings and these are ipv6 and 4 I would guess - it can be checked. As it should be.
Give this a try - if talking to the tech and engineers again, run this by them and talk about lack of knowledge of this by support level 1 and 2 and even higher levels, - an engineer would probably figure it out, but this is known information and needs to be documented into the support pages - if you take a look at 7-11 and Petro Canada, you will find they have the full settings for their network connection, including the APN IP versions settings.
So, if this is the ultimate issue, - seems to be, my wife's is working great now too. No delays at all.
Just have to remember to turn on data as we don't use it most of the time.
If this is the solution, Rogers needs to change the reference page for APN settings and include all settings including theAPN protocol and Apn roaming protocol.
My guess is that it is those of us who started life using MMS a lot and staying away from email and facebook and other ways to send it, and then when protocols changed, we got problems coming into play along with WIFI calling - wifi preferred. So it is not a common issue for many - many have data and just use what's app - data based, facebook - databased, fb messenger data based, and so on, and drifted away from MMS.
Hope this is the solution. If it is, please mods get it added to the help blog pages, and please advise Rogers support department, engineers, and change up the APN setting page and you will need to address older phones too that don't have IPv6 capability - see tmobile in 2003 for early information.
Good night all.
I love a good IT networking problem, but get frustrated when the provider companies and vendors when it appears that they have not kept themselves updated in their support documents.
Oh well, my little bit of contribution to the problem.
Give it try and see if it helps, and please support and engineering and how to writers, lease research this and update all documentation. It is clearly incomplete.
Bruce
