Netgear Nighthawk R7100LG Terrible 4G Connection (Semi-Solved).

Spoke too soon with this. It is NOT falling over to 4G or 3G. It's flakey at best. Begin troubleshooting...

I've started from the lowest available Firmware for this router and upgraded through all versions and not one of the Firmwares has addressed this problem. 

As the LTE Module appears to be installed using a mini-PCIe interface, this would be driver driven.
The driver should be written into the Firmware to enable the Internal LTE Modem. However, this is failing miserably. Driver update required urgently. After a little research, I believe this card to be manufacturer by Sierra. Knowing Netgear products are global, I will assume that the Card chosen to run this magic gadget is an EM7565. 

Netgear should do one of the following regarding the situation with the R7100LG - 

• Release a new firmware with the latest driver upgrade for this internal device to at least get it to work. IMMEDIATELY.
• Recall ALL Nighthawk 4G LTE Modem Router's sold and apologise.
• Allow DD-WRT or Tomato to address the issue via OpenSource (unlikely as it has the word 'Modem' on the box).

For those of you finding this post, I am not alone here and neither are you. Add your 2 pence/cents to the thread... I have crawled the internet for answers to this problem and have come across hundreds of negative comments and reviews about this product and Netgear are ignoring all of them and at the price you paid for this product is absolutely disgusting and they are STILL SELLING IT. 

Just some of the places... Amazon / Scan / Box / MyOpenRouter 
Even the Netgear Community website is flooded with owners have problems with it.

Do not get me wrong, as a router this thing is fantastic, but why buy a R7100LG over a R7000LG apart from costing twice as much... we NEED LTE/4G Connectivity. It's THAT simple. 

4G/LTE is capable of speeds upto 80Mb downloads and I have actually seen this modem acheive that for about an hour. It then drops incredibly to an average of 5Mb on 4G Only. Switch to 3G and I gain a constant and stable 20Mb. 3G is fine, but NOT what I bought this thing for. 

Some may be thinking it's my local area... it's not, my Samsung S9 (with great LTE) achieves 70Mb with the same supplier in the exact same location as my R7100LG consistently. I won't be palmed off with 'its the local conditions' or 'reboot the router' or 'its my supplier'. 

NO, It's your router running an out of date driver version for a deivce internally. No doubt about it.

Try and prove me wrong like you've palmed other consumers off with. Just try. 
I couldn't care less that you've updated the Ookla's Speedtest Logo and added some 'security fixes' 
I, along with hundreds if not thousands of upset customers want this promising, yet shockingly unsupported product, updated and the firmware fixed.