Canon Printer Not Connecting to Wi-Fi, Not Finding the Network & Going Offline 

Canon printers that stop connecting to Wi-Fi usually do not fail in one clean, obvious way. The printer may still power on and still broadcast its setup network, yet never join the home Wi-Fi. It may still see nearby access points, but not the one users actually need. In other cases, the setup reaches the network list and then never asks for the password, which makes the whole process look frozen rather than truly failed. 

Problem: Canon printer will not reconnect after a router change

What users observe: This is one of the most common Canon Wi-Fi failures. The printer had worked on the old router, then after the router or ISP changed, it either stayed tied to the old network or refused to complete setup on the new one. In one solved case, the printer still behaved as though it was connected somewhere, but the new setup would not finish and even the reinstall path would not get past the connection stage. 

What was tried: Users reset the printer in multiple ways, retried setup from the phone app, retried the desktop setup tool, and even uninstalled the printer to start over. They also power-cycled the router and the printer, but kept using the same stale wireless state the printer already had stored.

How this played out: The printers only came back after the wireless connection was rebuilt from scratch instead of trying to reuse the old network profile. In the solved cases, that meant putting the printer back into wireless setup mode again and then reinstalling or reconnecting it as though it were a first-time wireless install. Where the router itself had changed, the setup path only stabilized once the old saved wireless state was discarded and the printer was re-added against the new network.

Problem: The printer cannot find the home network even though it sees other Wi-Fi networks

What users observe: Another strong Canon pattern is that the printer can see nearby networks, but not the one users actually need. That makes the printer feel selective or defective, because the wireless radio is clearly alive enough to detect something. In the solved user case, the home network effectively vanished from the printer while other access points still showed up, which is why the problem easily gets mistaken for a printer cannot connect to Wi-Fi issue in general instead of a specific network-compatibility problem.

What was tried: Users turned the printer off and on, unplugged it for a while, retried setup, and kept looking for the home SSID to reappear. They also tried the ordinary app-based connection flow without changing the router behavior that the printer was actually reacting to.

How this played out: In the solved workaround, the printer first connected through a 2.4 GHz guest network, and once that link existed, the user opened the printer’s network configuration page and changed the SSID, IP address, and WPA2 security settings to the main network. That is a good example of a Canon printer that was not “failing Wi-Fi” broadly — it needed a cleaner path into the network before it would accept the home configuration properly.

Problem: The printer does not ask for the Wi-Fi password

What users observe: The printer reaches the setup stage, may even show the network list, but then never asks for the password and just spins or waits. Users often describe this as the setup hanging, because the printer never reaches the obvious point where credentials are entered. This kind of failure overlaps with installation failed and printer not connecting to Wi-Fi complaints even though the real fix usually sits in the router settings.

What was tried: Users repeated the Canon PRINT app flow, Easy Wireless Connect flow, WPS flow, and ordinary reboots of the router and printer. They also retried the same network without changing the security combination that the printer was actually rejecting silently.

How this played out: The password prompt appeared only after the wireless network moved to a configuration the printer would actually accept. In one solved case, disabling Fast Roaming on the router caused the passphrase screen to appear immediately, and the printer stayed connected afterward even when that setting was turned back on. In another, changing the 2.4 GHz network from WPA2/WPA3 to WPA2 only was what made the password path appear and complete normally.

Problem: The printer does not enter wireless setup mode correctly

What users observe: Sometimes the Canon printer never reaches a usable setup state in the first place. Users describe holding the Wi-Fi button, expecting the power lamp behavior to change, and seeing nothing happen. That makes the printer feel as though the Wi-Fi hardware itself is dead when the real issue is often simpler and much more specific to the setup state.

What was tried: Users kept pressing the setup buttons, repeating the same startup sequence, and retrying app-based setup before changing anything else about the printer. Because the printer never entered the expected setup mode, they often assumed the router or app was already at fault.

How this played out: In the solved case, the printer only entered setup mode properly after the ink cartridges were installed first. Once that was done, the blinking power-light behavior changed immediately and the wireless setup process could continue. This is a very Canon-specific kind of failure because it looks like a dead Wi-Fi setup path until one physical setup prerequisite is satisfied.

Problem: The printer does not stay connected unless the router is using the right band and security combination

What users observe: Another repeatable Canon Wi-Fi problem is that the printer either will not join the network at all or behaves inconsistently until the router is exposing settings the printer likes. Users often notice that the printer behaves much worse on mixed newer router settings than on simpler 2.4 GHz configurations. That is why this branch often gets mistaken for a broad offline or not responding issue when the real problem is the wireless profile itself.

What was tried: Users retried the same printer setup while leaving the router on mixed security or mixed band settings, assuming the printer would adapt automatically. They also kept the laptop or phone on one band while expecting the printer to resolve the rest cleanly on its own.

How this played out: The connection stabilized only after the network exposed a 2.4 GHz SSID and used WPA2-PSK with AES instead of other authentication/encryption combinations. In the solved laptop setup case, that security combination was the difference between endless setup failure and a successful install.

Problem: The printer connects once through the app but still does not complete normal wireless use

What users observe: Some Canon printers get halfway there: the app sees the printer, the temporary setup SSID appears, and the device seems close to joining the network, but normal wireless use still does not finish correctly. This is where users start describing the printer as connected and not connected at the same time. The symptom is common enough that it often overlaps with offline printer and printer not connecting to computer complaints.

What was tried: Users kept rerunning the Canon PRINT app setup, watching the same spinner or waiting state, and retrying from the same phone or PC without changing the printer’s internal wireless setup state first.

How this played out: The setups that actually completed did so only after the printer was put into the correct wireless setup mode first and then connected through the proper Canon setup path again. Where ordinary app setup still struggled, using the printer’s own setup mode together with the desktop wireless setup assistant or the correct Canon PRINT flow was what finally established a usable saved network profile.

Problem: The printer stops talking to the network even though Wi-Fi had worked before

What users observe: A Canon printer that had already worked wirelessly can suddenly stop responding, which is why users often describe the problem as the printer “falling off Wi-Fi.” This looks broader than it really is, because the printer had already proven that it could join the network before. In this branch, the useful clue is that there has been no permanent hardware change to the printer itself.

What was tried: Users kept trying to print from the same computer, retried the same wireless setup tools, and left the network environment unchanged while expecting the printer to recover on its own. Some also stayed connected to VPNs or left the router and modem in the same stale state during repeated attempts.

How this played out: In the cases that recovered, the printer only started talking to the network again after the communication path around it was reset properly — rebooting the router/modem, reconnecting the printer wirelessly instead of relying on the stale prior connection, and removing side-path interference such as VPN use when that was part of the setup. On Canon printers, a previously working wireless link often does not need a completely new diagnosis; it needs the communication path rebuilt cleanly.