Was previously using Aussie broadband for my NBN, switched over to Dodo today but internet was not working, called their support and they said because I was using an ADSL2+ router it will not work.
Confused why it was able to work with one company but not the other? Would have thought it would work for all or none at all.
Some modems need to be configured with the ISP details, they should have gone through this with you. ABB certainly did for me and so you probably still have their settings configured.
This was the ABB settings guide, ask Dodo for theirs: https://www.aussiebroadband.com.au/help-centre/nbn/modems/by…
Also, note while most units are modem/router combo units, it's the modem you need configured. Router is just a WiFi distributor simplistically.