• Friendly advice: avoid online updates to prevent disconnection problems.

I’m sharing my experience with a Maxify MB2750 printer, which kept disconnecting from the network after the latest firmware update, and, finally, a solution that has worked for quite some time so far to resolve the disconnection problem. Although it worked without any problems for a while, after turning the router and the MB2750 off and on, the printer started disconnecting from the wireless network, requiring the drivers to be reinstalled to restore its operation. CONCLUSION: Friendly advice: avoid online updates, otherwise there is a high chance of constant disconnections (and perhaps problems with compatible inks)! The purpose of technology is to make our lives easier, not to test our patience.

On 27-10-2018, I bought a Canon MAXIFY MB2750 multifunction printer from a well-known large department store. It is used at home for scanning, with around 50–100 pages printed per month, and always using genuine ink. Until 22.12.2025 it worked satisfactorily without any problems, but AFTER THE LATEST FIRMWARE UPDATE from Canon Cloud, the printer became PROBLEMATIC, displaying “Printer offline” messages and being unable to scan or print, whether it was connected wirelessly via Wi-Fi to the router or by cable via RJ45, and with the antivirus disabled. The connection remained problematic after the latest firmware update, regardless of which version of the program and drivers (MB2700 series Full Driver & Software Package) for Win11 I used from the CANON EUROPE website (revisions 1.02, 1.04, 1.1, 1.2). THE RESULT WAS ALWAYS THE SAME. If it lost its connection, I would reinstall the drivers and print and scan for a few minutes; then, after an hour of printer inactivity while using the computer, the printer would show as “PRINTER OFFLINE” and would not connect to the network, either by cable or wirelessly. And then I had to start all over again. Conclusion: the situation would improve for a short while either by rebooting the computer or repeatedly reinstalling the CANON drivers, but then the same problems would return. If I turned the printer off and on, there was no guarantee I would be able to print again afterward, because most likely it would remain OFFLINE and the computer would not detect it, even if I set a fixed IP address from the computer (Win11) to match the one assigned to the printer by the router, or manually set a fixed IP address from the printer’s panel. I had researched this quite extensively and spent a great many hours trying to bring it back ONLINE, but without success (whether through Win11, the antivirus, or the printer settings). The known methods found on YouTube, the Canon website, and various forums had not helped at all. I had contacted CANON HELLAS and CANON Customer Care by written message, but the response was a generic set of instructions, none of which fixed the situation. I asked to revert to the previous firmware version, but users cannot do that. So I always resorted to reinstalling the drivers each time. And then it was back to square one. The same problem continued even after uninstalling (with REVO) all the CANON programs from the computer and using “ADD A PRINTER” in Win11. The strange thing was that when Win11 detected the MB2750, its own “Canon Wi-Fi Connection Assistant” application could not detect it at all!!

Now for the good news: it is a fairly sturdy and heavy multifunction printer with a professional appearance, good-quality plastic, and high-quality construction and assembly (it does not look “cheap” like the equivalent HP multifunction printers with their low-quality plastic that “rattles”). It looks and feels solidly built. It comes with a host of useful applications that are very convenient and make things much easier. The hinges on the scanner lid have strong springs that raise it evenly on all sides, so it rests horizontally and steadily over the object being scanned on the glass surface (a feature you don’t often see on other scanners). Scanned files are almost editable (see OCR), and you can copy several sentences from a scanned page. The automatic document feeder (ADF) works perfectly; it has never jammed or fed double sheets (it has never had a problem). It has 2 trays and holds 250+250 sheets in total. It has automatic duplex printing but no duplex scanning because it has a single-sided scanner. Its inks are not that expensive, and printing is fast, but the colors are slightly distorted and do not come out correctly (you see one shade on the screen and a different one in print). It worked very well for 8 consecutive years. This is in contrast to all my previous HP multifunction printers over the last 30 years, none of which lasted more than 4 years. At the four-year mark, as if they had an internal timer, they would all stop working, display an error, and become useless, ready to be thrown away like disposable items, without having printed many pages. So I decided: “NEVER AGAIN HP.” At least the Canon MAXIFY MB2750 continues to print, scan, and work perfectly after 8 consecutive years, as long as it remains connected to the network (even with the occasional disconnection problems). Apparently, IT DOES NOT HAVE THE CLOCK MECHANISM OF HEWLETT PACKARD MULTIFUNCTION PRINTERS, WHICH BECOME USELESS AFTER 4 YEARS.

THE SOLUTION

UPDATE 22.12.2025: Since, after the latest printer firmware update, all the steps I had taken so far to resolve the constant disconnection problem FAILED MISERABLY (including help from CANON Customer Care), I took the following steps. As a result, the printer is working normally and remains connected to the Wi-Fi network wirelessly without disconnecting, and prints/scans normally:

1) I uninstalled all CANON drivers and programs.
2) I deleted all duplicate printer entries in Windows (from the “control panel”).
3) I deleted all related printer ports (from “printer properties”).
4) I performed a DOUBLE HARDWARE RESET on the printer (see below).
5) I reinstalled all CANON drivers and programs.

Note: Steps 2 and 3 above are important to prevent page printing from being delayed afterward.

Method 1: Hard Reset (Button Combination)
1. Turn the printer off.
2. Press and hold the Stop button for 2 seconds, then press and hold the On button while still holding Stop.
3. Release the Stop button but keep holding the On button.
4. Press the Stop button 5 times while holding the On button.
5. Release the On button. The printer will enter a reset state (blank LCD screen). Wait for it to finish, then press the On button to restart.

Method 2: Factory Reset (Menu)
1. From the home screen, navigate to Setup; Device Settings; Reset Settings.
2. Choose Reset All for a full factory reset (deletes Wi-Fi, fax, etc.)

UPDATE 22.02.2026: The printer continues to work and print/scan normally while connected to the wireless network.

UPDATE 24.03.2026: The printer continues to work and print/scan normally while connected to the wireless network.

UPDATE 05.10.2026: The printer continues to work and print/scan normally while connected to the wireless network.

It is a printer designed for small offices or if you have a significant volume of printing. Personally, I used it for about a year at home for a relatively small number of prints and intermittent periods of non-use. I don't know if that was the reason, but before it reached its time limit and as soon as I returned from vacation, during a period in which it was not used for at least 1 1/2 months, when I tried to print something, it gave me the terrible error 5200, which means at best a print head replacement! The cost of replacement at the official service? From €120 to €135, which means immediate recycling. I tried to do a factory reset, even opening the print head and careful cleaning, but nothing worked. Even a second Maxify 2350 from my wife's school showed the exact same problem after a few months of operation. In my opinion, do not choose it if you want a reliable machine that you will have for years. It's a shame for Canon because I was traditionally a fan of the brand.

The connection with the iPhone impressed me. I downloaded the app and immediately recognized the printer that was connected to wifi. In about ten seconds, it had even printed a photo that I had on my phone. On the other hand, the installation on the computer was a bit more time-consuming but relatively easy. However, it prints quickly and with good quality, it is double-sided and with economical ink, even though I have not yet used it intensively. I had 18 years of experience with several hp all-in-one printers and I feel justified in switching to Canon. I highly recommend it, it is great value for money.