Thanks to you both for confirming it's not just me.
I've only been looking at coverage in the area where I work (around George's St) and I haven't run speed tests - I've just been to see that the data connection was "E" (so giving extremely slow speeds - e.g. a minute to load a webpage, etc.) rather than "H/H+".
So, as I said in earlier posts, I kept asking 48 support to look at it. Following some initial responses to tickets, support stopped contact with me entirely - I haven't heard anything in weeks, despite asking them several times for an update.
However - GOOD NEWS! - I now get H coverage consistently in the Georges St area (just as I used to do prior to August).
So, my local issue seems to be solved.
To repeat, the timeline was:
- H coverage for years, until August (at pretty much exactly the same time that my office's admin team were notified by Three of improved 4G coverage in our area)
- E coverage from August until about 2 weeks ago (when I was continually hounding 48 support to look into and resolve the issue)
- H coverage again since about 2 weeks ago.
So, it looks to me that Three's 4G enhancements caused the George's St problem (to 48 network) in August and, at end September, someone in 48 or Three adjusted something to fix the problem maybe because I gave out about it so much (although I never heard anything back from anyone in support).
Maybe the other issues you're finding around Dublin city are because of recent 4G rollouts (especially if you found that 48's H coverage was better in previous months/years)...
To anyone reading this and experiencing similar problems, I suggest posting lots of details on the forum and in support calls with 48, and hounding 48's support team until (hopefully) there's an improvement. Don't let them fob you off with "replacement SIM, etc.", although you might have to jump through those hoops before they'll take you a bit more seriously and refer the issue to their "technical team".
