please help

[billuk3]

I have bought a sim card that is mobile broadband it says 24gh and lasts 24 months and a 3 router the first day it worked fine then it stopped working .all the lights are green except the one that reads LTE strenth which is red.

when i connect to the wifi it says no internet. 

pan somebody please help me

[Paddiewack]

I’m slightly confused here so some questions.

1) Bought from where? Three/shop/man in a pub?

2) Have you entered into a contract with Three or is it a payg sim?

Im not trying to be facetious but you DO need to elaborate more. 
Failing that you can also contact customer service on the number which I think is on the SIM card or for reference it’s 03333381001. 

[billuk3]

I bought the simcard and router from a 3 dealer off the internet. ,ive tried to contact there support it asks for a verification code as there is no phone attached the simcard 

[Paddiewack]

I’m not aware of Three dealers on the internet other than affiliated third party sellers in which I’d say call them. Was it a contract or payg. Do you have a phone you could put the sim in to receive verification codes? Have you got another card you could try in the router? 
I’m going to say it sounds iffy but I could be terribly wrong. 

[Officina-red]

If the SIM card deal was 24GB of data that lasts 24 months, it may of run out of data, streaming YouTube or Netflix in HD can use 2 or 3GB of data per hour easily. 

[Paddiewack]

Very good point!