@TP_Link_1 

The warranty on JetStream is pretty good, its "lifetime" which is really 5 years from EOL if i remember right, only had to use it once thankfully.  

Best way is to contact support and give them the purchase date, they will check the warranty for you and arrange an RMA or replacement.  As said done it once last year and was a painless exercise in fairness, the model I had was no longer available so I got the next version up as a replacement (v2 to v3).

More details here if you need more info

https://www.tp-link.com/uk/support/replacement-warranty/#box_3

@TP_Link_1 

There's also a new warranty/product registration portal you can use I believe depending on your country.

@TP_Link_1 

@TP_Link_1 

You can check it by S/N, when it was produced. Firstly, you have 2 (foreign market), then the year (20), then the month (C -  November), then bla-bla-bla. So, now you know, what S/N like 220C123123123 means :)

Then, it depends on your country service politics. Usually, as it was said above, it is limited lifetime.