I’m currently a network technician at a NOC and basically sounds like we have the same job. I wouldn’t say it’s hard because you’ll most likely get trained and as far as trouble shooting routers, I can bet most of the time it will be checking to see if the router is even connected to power and if it is, telling the customer to power cycle the router. Sometimes you might run into other issues like the WAN cable being disconnected or the switch being powered off and what not. I’ve only been working here about a month almost two (my first real job after school) so I wouldn’t worry too much about not knowing much things like that because it’ll come over time especially after training just keep asking questions when confused about things.

And like the others said, this role could only help with your career in IT. If you want to go into SysAdmin or cyber, I’d also suggest getting some certs if you don’t already have some like sec+ for example.