I currently have an ISP at home for my broadband. A while back they sent me a new router as it was believed the old one was faulty. Turned out it wasn't so it's spare. I am due to go live with the same ISP at a business premises tomorrow but my new router hasn't arrived. Can I simply plug my spare router in and it automatically connect? Or is it more complicated than just plug and play? 

It may well be down to whichever ISP you've chosen but I'd certainly give it a go.

If passwords etc are required then they'll be able to tell you what goes where.

It's their own branded router, seems to just get delivered out without any configuration, literally just plug and go. Hoping it will just identify the line belongs to them and bam away we go...or the new router arrives in the morning. 

From what I was told from a tech guy at my ISP, is its FTTC/fibre then its just plug-n-play. Old copper line will  need username and password.

even if its a copper job standard routers from same isp will have same access config. i accumulated 5 of them at one stage and swapped out ones in my MiL's to test for faults when she had problems with 0 issues.

16 hours ago, mac11irl said:

even if its a copper job standard routers from same isp will have same access config. i accumulated 5 of them at one stage and swapped out ones in my MiL's to test for faults when she had problems with 0 issues.

I used the same router when we moved from Hampshire to Devon (stayed with same ISP) - connection was FTTC in both cases.

Shouldn't be an issue AFAIK. I've swapped old BT routers on the same line when I was doing some up/ down tests when BT claimed their latest router was better/ faster etc and found no difference using Ookla's speed test tool. I'm always hardwired though rather than via WLAN in case that makes a difference.
(Ex Openreach/ BT)

Edited 3 February, 20215 yr by Lee01

FWIW some come preconfigured with your username and password, will work, but the traffic will come from “you” not the business name.

 

Probably can be changed, but make sure you do. I know one company the end user couldn’t access the page, only they could via a connection.

A quick web search will reveal how to crack a router. I remember that one poster had a site dedicated to cracking most of the older( and some newer ) BT ones.