Thanks
@cytec for the help! Setting APN via terminal worked immediately
Have discovered you can enter APN details for multiple neworks the same way, it will remember them all, and automatically use the correct one as you switch between sim cards. The webUI will show the incorrect one but it doesn't matter.
Re
@mobilebroadband21 question about the UI. Yes it is just broken. However it's the only area of the UI I've found that doesn't work, everything else seems fine, it's snappy to use and changes are applied very quickly.
I've only had it up for 4 days now but it's not fallen over and I've been using it heavily.
You can limit which bands it uses, which is handy, but unfortunately I don't think you can specifiy CA bands. I'm quite new to the world of LTE so I may missunderstand whats possilbe, but for example on O2, by restricting bands I have discovered:
Primary and CA bands both B20
15 down / 25 up
Primary and CA bands both B40
65 down / 6 up
So obviously I'd like it to be using a combination of those, but if I tick 20 and 40, it only ever connects primary and CA to the same bands, never mixed, which honestly I thought was the whole point of CA.
All in all, still happy with it, excellent performance for it's price.
Some speed comparisons for anyone interested:
EE
CAT 4 (MR6400) 18 / 24
CAT 12 (mikrotik) 45 / 30
CAT 16 (phone) 65 / 15
CAT 19 CPE pro 100 / 45
Voxi (Vodafone)
CAT 4 (MR6400) 8 / 3
CAT 12 (mikrotik) 14 / 7
CAT 16 (phone) 14 / 7
CAT 19 CPE pro 14 / 6
Giffgaff (O2)
CAT 4 (MR6400) 9 / 3
CAT 12 (mikrotik) 65 / 6
CAT 16 (phone) 45 / 7 (no idea why slow)
CAT 19 CPE pro 65 / 19
Three's 4G is too useless here to bother testing.