Netgear Nighthawk M1 not connecting no matter what

[noodlehonk]

Ive been dealing with this for about two months, I just bought my service again thinking it was my ISP but it almost immediately ran out. I heard from people that the firmware is glitched and ive heard about DNS settings but ive tried almost everything I know or researched. I cant contact netgear because of money, which is ridiculous, and ST because their customer service is actual trash. I really dont know what to do, I cant figure out how to downgrade the firmware or what to change the DNS to. Please, if there is any advice please help. 

[plemans]

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@noodlehonk wrote:

but it almost immediately ran out. 

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What ran out? 
Your data? 

How much data do you get a month? (keep in mind, most unlimited plans throttle speeds after a certain data limit)

[noodlehonk]

I should state ive had this router for a few months and its just starting now so I really doubt its the phone plan. I have a gold straight talk unlimited plan with tmobile. Recently it has been using up the hotspot data, not the unlimited data so when I hit only 15gb it basically shuts down instantly. Nothing loads at all and its unusable. 

[plemans]

it could by how your isp is coding it. If its using the "hotspot data" and its connected to a hotspot, they've probably figured that out. 

For a while you could use a phone sim card in a hotspot and use "unlimited" data. Sadly, like I said, network providers figured out users were doing that and could compare the sim to IME data. 

Could be that's what yours has done. Did you check with them?