Unable to connect Chamberlain garage door opener via 5g internet

IMO, the change has to come from Chamberlain to have the MyQ server listen to open ports.  They will claim they use this port for security purposes.  Hardwired connections like ATT might be secure enough to have the port open, not so much with 5G internet using the cellular network.  I doubt T-Mobile will open the port (8883).  

The more complaints Chamberlain gets, the more likely they might take action.  Open a ticket with them.  I pointed out to the Chamberlain support tech that this issue will only grow in frequency and just marking it as a known issue wont make it go away.  

My opener has never connected to the myq server due to blocked port.  I have been on tmobile home internet for around two weeks.  

Having the same issue. Both of my Chamberlain garage openers worked fine up till 36-48 hours ago and then became unreachable in the MyQ app.

I figured TMobile changed something, like a blocked port (i.e. 8883). 

To test this, I reconfigured the Garage openers to use my Verizon Hotspot and everything worked fine.

Looks like Tmobile added some filtering.

Please fix this or give us the ability allow exceptions on the router.

I found a quick easy solution for this. I have an old netgear N300 extender when I used with Comcast router to provide full house coverage. Now with t-mobile home internet router I do not need that extender anymore for coverage. I setup this extender again to create a 2.4 GHZ network for my MyQ to connect to. It worked like a charm.This 30 dollars extender will do the trick. 

I FOUND A FIX FOR THE CHAMBERLAIN

Hi all.  I recently installed the T-Mobile 5G internet and ran into the same issue.  I discovered a work around for this issue.  I bought a ORBI91 router from Walmart.  I plugged it into the back of the T-Mobile device and was able to create another network.  The Chamberlain recognized the new ORBI network and is now working with MyQ.  I still have my TMobile network as well.  Maybe other routers will work as well.  I am not for sure.  The Orbi was the 1st one I bought.  As an additional bonus, when I have guests over and the want to join my network, I am going to give them the Orbi network and keep them off my personal network.  

Hey give it a shot.  Maybe it will work for you as well.

First of all, I separated the 2.4 GHZ network from 5 GHZ network from t-mobile internet app (choose network you will see the option). All I did was to reset extender to factory default setting then I can use my laptop to connect to the extender network, and a simple configuration screen shown up. The very first step was to let me pick which WIFI network extender should connect to. I picked the 2.4 GHZ one from T-mobile home internet router. Then provided password for extender to connect. Now I have chance to pick a name for extended WIFI network. 

Now I have extender WIFI network created and be able to connect to through phone or laptop. 

I went to garage, reprogram the WIFI to connect to this extended network. Garage has no problem to connect to this network. Everything comes back green.

You might need to download a manual of your extender to find out how to reset to factory default settings and configure an extended network for use.

All MyQ needs is at configuration time to use port 8883 to connect to your router or extender to register. A router or extender works well for this purpose. But extender is cheaper and easier to place closer to garage. Mine just needs a power plug.

I am having the same issue with my smart garage. I don’t have the Chamberlain, but the Genie Aladdin. No issues connecting any of my other devices to T-mobile. My garage had no problem functioning off of the cable internet. Spent a great deal of time on the phone with both T-Mobile and Genie. Neither could figure it out. It says there is wifi available but it will not connect the device. The service is strong in the garage bc I did internet speed tests on my phone. The most frustrating thing about it was the gentleman I talked to from T Mobile had me reset my T- mobile box disconnecting EVERYTHING in my house from wifi to resolve the issue. It did nothing but cause a ton more work reconnecting everything that works. Waiting on calls back from both companies but after reading this I am starting to feel like this is an issue all around for those of us with smart garages. It needs to be resolved. I rely way to much on the functionality of the smart garage door with my kids. I tried to tell them what I was reading in the comments here but it was crickets on their end. They acted surprised. If anyone has any recommendations on how to resolve this I am all ears!! Already tried separating the combined networks. It did nothing but cause a hassle. Restarted devices/reset devices. I am at a loss. 

There is actually a confirmed solution for this as I had exact same issue everyone else is complaining about.

You can't connect directly to the TMO router. It just won't work. 

I resolved this issue with a WiFi extender but you have to make sure it runs separate 5ghz and 2.4ghz networks. Mine was $50 on Amazon. Model shown at this link. 2022 WiFi Range Extender Signal Booster up to 5000sq.ft and 35 Devices, Internet Booster for Home, Wireless Internet Repeater and Signal Amplifier,4 Antennas 360° Full Coverage https://a.co/d/eBZMKlh . Then when you go through the process to add the chamberlain opener don't connect directly you the TMO router but instead connect to the 2.4ghz network created by the extender. Boom. First attempt to connect worked. 

I have spent much time and research with trying to connect to MY Q/chamberlain garage door opener wifi AP since changing both my phone and internet to T Mobile.   My recent contact with a Chamberlain support person has me certain that the problem lies with security settings within the Gateway router. Reading these posts and following recommendations from both My Q and T Mobile support  , it seems most likely that it is an issue with Port 8883 being blocked.   I am unclear how to “unblock” port 8883. 

I was told by T Mobile that the Gateway settings cannot be changed as it is preset and a plug and play device.  All of my connected wifi devices are working EXCEPT the My Q app.  

Any updates on how to remedy this ?  Thanks so much!  

Hum, over the weekend MyQ started working again as my opener connection indicator is solid green.  Still connected this morning.  I took no action with either the app nor the router.  

I had the TMHI Nokia Gateway and no issues with MyQ. Installed an TMHI Arcadian Gateway seven days ago and my MyQ devices no longer work. Tried talking to Chamberlain support but it was pretty useless (“T-Mobile is 5G, we require 2.4GHz”).

Looks like a WiFi Extender is the preferred solution, will go this route and hope one of the two vendors solve this issue in the near future.

Use an external router. Configure your router to use the SSID of your T-Mobile gateway. Delete the SSIDs from your T-Mobile gateway. Establish a new SSID in your T-Mobile gateway. Your IT equipments should automatically connect to the new router. MyQ garage you setup as instructed by the MyQ app and it will only detect the 2.4ghz connection. My setup is an ac3600 nighthawk $25 from eBay. 1000x better than the T-Mobile.