So, I've had a lot of issues with this router since I got it in March.
It started out with slow speed issues. It clearly wasn't using carrier aggrigation and was getting standard 4G speeds. Around 5 - 20 Mbps. My Samsung S7 phone was pulling down better speeds using a SIM from the same Telco (Three).
Anyway the issue started becoming unstable connection and random disconnects. I set the router to restart every morning at 8am because usually if it froze up my only way of pushing it back into life was to do a hard power reset as I couldn't reach the GUI from Wireless or via wired. This became increasingly unstable until eventually I arranged for a warranty replacement from Amazon which thankfully seemed to resolve the randon disconnects.
The speed issue remained. I then obtained a new Samsung S20+ phone and noticed it was connecting using 4G+ and with carrier aggrigation was managing to get 100Mbps speeds without issue and reliably. I contacted support and didn't get very far.
I eventually managed to get this escalated internally to a higher level engineer and I was asked to examine which band the router was connecting on via 4G, it was connecting via Band 1.
I then was asked to download an LTE analysis tool and found my phone was connecting on band 3. This can be found under "Advanced>Status>" and it's shown under Band.
I'm waiting on hearing back from support but they are talking of giving me a Beta Firmware which will allow me to manually select bands to see if we can remedy the speed issue like this.
Is this a common issue people are experinecing with the MR600? I bought it pretty much soley on the promise of increased speed due to carrier aggrgation and I'm pretty peeved this has been such an uphill battle and hours of me contacting their technical support to get them to recognise the issue.