Canon printer will not connect to T-Mobile 5G Gateway home internet

You can have more than one network in use.  I think the gateway allows up to five, but two should be enough.  One is the default network that the gateway came with.  The second is a 2.4 GHz network that you add with the T-Mobile Internet phone app.  Your devices can be connected to whichever works best for them.  The default network automatically selects 5 GHz or 2.4 GHz for each connected device.  The security is WPA2/WPA3.  Many devices will connect to it without issues.  Set the security on the second network (2.4 GHz) to WPA/WPA2.  Use this second network for devices that don't connect to the default network.  In my case, my ancient computer and ancient printer are connected to the dedicated 2.4 GHz network.  My newer computer and most of my other devices are fine on the default network.  I can print from my newer computer to the ancient printer.

I set up a second network with WPA WPA3 and 2.4 GHz. Connected the printer and made several copies. Problem solved, not really. Later that night i tried to make prints but no succss. There was ! Alert Next to the printer i was using. Cancelled the print job looked for more alerts but found none. Tried to print again but the ! Alert came back. I shut down the mac for the night. This morning tried again. Turned on the printer and it went into print mode. I didn't do print setup on the mac. Talk about delayed reaction time. There may be a bug somewhere in the mac. Its old and getting older. The printer is almost as old. Ghosts in the machines. 
BTW this all happened in the T Mobile default network. The second network will not connect the mac and printer. Fun times in old Bixby. 

I never thought that I would be writing a technical comment. But, here goes. After subscribing to my new T-Mobile network everything connected, with some effort, except my Canon MX922. I spent two days trying everything I knew to connect to my network. However, it would not allow me to enter a passphrase. It would simply ask my Network name and then proceed directly to the Access Point. It would not ask or allow me to enter my passphrase. Then, like all technically challenged people I decide to look on the WWW for "HOW TO" and HELP! Which led me here. After reading through a few replies, I realized that I wasn't alone. CONFUSED. Bottom line, luckily I have an old Wi-fi repeater called "WiFiBlast." I have no idea where I purchased it or if it even "truly" works. But, I connected it. Chose it as my Access Point. It allowed me to enter my passphrase. I selected a security option (I read through a few more comments for an idea) selected it and VOILA!!! I am connected. AFTER 2 DAYS!!! This shouldn't be so difficult. But, such as life. Good luck!

My Canon Pixma iX6820 did not like the new T-Mobile Fast 5688W router either.  I spent many hours trying to solve the issue.  I put an ethernet expander and Powerline adaptors in the system and connected all with ethernet cables. It works great and no password is required! And the printer can be moved to locations away from the computer.

Same issue here for my HP DeskJet 3510

The answer given by SSW was key, "...I had to change the WPA version on the Tmobile gateway app (Network tab, select your wifi network, under WPA version, change to WPA/WPA2 from WPA2/WPA3).  Then on the printer, go to Device Settings ->LAN settings, ->wireless lan setup..."

This did help and my printer was able to be set up. However, I then started experience connectivity issues on my computer and I kept having to sign back in the Wifi every 10 mins or so. I'm not sure why. Perhaps I'll have to switch it every time I need to print. Very annoying. I don't understand the disconnect. Is T-mobile's internet technology too advanced for the printers?

can someone please help me? My MX922 will not connect - it shows my wifi name but it does not let me enter a password. 

I had basically the same problem.  I called T-Mobile support and they had no success and said they were recommending updating the printer.

I have a canon mx920 and it would skip the password step and gave me an error message.  After reading the message above I scrolled down and found the manually enter the access point which then gave me the password screen to enter and this solved the problem solved.

Thanks SSW

TMNiceGuy wrote:

Dhumphrey wrote:

All is well, now.  I followed the suggestions and, finally, my network name appeared on my printer.  I selected it and was then prompted for the password.  It was then connected to my network.  Hallelujah!!

Hola,

 

I have a Pixma MX492 too!

 

I can't connect and trying to follow the instructions listed here.  I switched to access point in standard setup and that doesn't change anything whether that or Wireless LAN.  I also changed on the Gateway to WPA/WPA2 from WPA2/WP3.

 

The printer finds the TMobile Home Internet Gateway. When I connect it says failed and never asks for a password.

 

Did it ask for a password for you?

 

All my other devices are connecting with issue.

 

Canon Support won't bother talking and directs to website :(

 

Thanks so much!!

Finally got it.  I connected multiple times following these instructions but still couldn't scan anything.  i just kept playing and playing.  It finally seemed to work when I went past the Save to USB screen to one that had my name on it.  Good luck.  Keep playing - it IS possible.   Now I hope I didn't scan the papers upside down1

nibor wrote:

TMNiceGuy wrote:

Dhumphrey wrote:

All is well, now.  I followed the suggestions and, finally, my network name appeared on my printer.  I selected it and was then prompted for the password.  It was then connected to my network.  Hallelujah!!

Hola,

 

I have a Pixma MX492 too!

 

I can't connect and trying to follow the instructions listed here.  I switched to access point in standard setup and that doesn't change anything whether that or Wireless LAN.  I also changed on the Gateway to WPA/WPA2 from WPA2/WP3.

 

The printer finds the TMobile Home Internet Gateway. When I connect it says failed and never asks for a password.

 

Did it ask for a password for you?

 

All my other devices are connecting with issue.

 

Canon Support won't bother talking and directs to website :(

 

Thanks so much!!

Finally got it.  I connected multiple times following these instructions but still couldn't scan anything.  i just kept playing and playing.  It finally seemed to work when I went past the Save to USB screen to one that had my name on it.  Good luck.  Keep playing - it IS possible.   Now I hope I didn't scan the papers upside down1

P.S.  T-Mobile told me I would have to buy a newer printer to work with the 5G network.  Obviously not true.