I have just bought RBwAPGR-5HacD2HnD&R11e-LTE6 kit, but I’m EXTREMELY disappointed with R11e-LTE6 modem. It gives me 10-20 Mbit on download, no matter what SIM card I will put in.
The question is - can I replace this miniPCI card with something better? Is it possible? Will RouterOS recognize it? RouterOS I’m using is 7.15.1.
I will attach to this post as I am disappointed as well (SXT LTE6 kit): I do not need speed but stability and I have issues with it - iphone (SXT behind HAP) is often reporting no internet over WiFi 
Everything updated (7.15.2 on both HAP and SXT with v38 modem firmware)
No LTE interface down events but still - no data flow from time to time
Any ideas? Some R11e tweaks like disabling CA for stability or should I look for other modem?