Why does the printer stop working after the router was replaced?
The SSID/password/security or subnet changed. Reconnect the printer to the new network and remove/re-add it on computers if discovery records are stale.
Old SSID; security; printer IP; saved port.
Printer support if onboarding fails.
Show the technical detail
On a managed Wi-Fi plan
Where safe, matching the old SSID/password can ease migration, but check security and ownership.
On another provider's router
Provider router replacement steps vary.
What to be careful of
Do not reuse a compromised password.
Where this comes from: Official · see the original source ↗ · Draft—technical review · checked 17 August 2026