Update to below- The iPhone 11 IOS 15.02 update fixed my issues. The app is working properly now & I'm very happy.
____________________________________________________I had a fault code & couldn't connect Gateway to my Code 50 a few months ago when I purchased it. I tried deleting the app to reload but when I reloaded, it was only accessible via the App Store & wouldn't appear on my Home Screen. I could connect for awhile. Recently it seems since the IOS 15 update to my phone, it no longer connects manually or automatically to my Code 50. The app is useless to me. I've search for an alternate app from another source that is compatible with the Code 50 but there doesn't appear to be one. The Gateway app and Bluetooth connectivity heavily influenced my purchase decision. If I had known the app was useless and I would have to physically go to the amp and try to dial in each sound, I would have just bought a fender. I really feel you should take my amp back if you can't correct the problem. 

Bought a marshall acton II today and I'm unable to play music from my phone on it. It does not show on airplay either while connected on app. I suspect it's broken on ios15. Hope it gets fixed soon or Im requesting a refund as right now it's just standing as decoration. 

Hello, I bought a Marshall CODE 25 yesterday, and so far I love the sound and feel of the amp. But I am having the same issue that alot of people are having, I can connect to the amp via my phone's Bluetooth but the amp will not show up in the Gateway app.

I have tried everything in the FAQ troubleshooting guide, nothing works. I can play music to my amp but that's it. Feels like a problem with the app and not my phone.

Are you reading the forums, Marshall? You need to take a look at your app, seems like it has some compabillity issues, it's working for some people but not everyone. 

I have a Samsung Galaxy S8.

Please fix.

My new code 100 downloads presets. But as soon as you shut it off the new preset dissapears. I save it I sync it with the correct cable connected. Every time it fails to work properly. The pre loaded presets are unusable for the most part. Most are strange unusable things or the volume is so low its inaudible in a band setting. I have watched every tutorial i can find. Nothing works. paid 550 bucks for a product i can't use. i will likely never buy marshall again. constant noise in the amp. just a horrible experience. My little mcg whatever it is marshall is better than this thing

I seem to be having the same issues that a lot of people have reported, where I cannot get the Marshall Gateway app to connect to my Code 25. I've only had the amp for about a week and I cannot get the app to see it. ? 

I can connect to the amp via Bluetooth using my phone (Pixel 3a, Android 11) and whilst connected, can use it as a BT speaker to play music from Spotify. However, nothing I do seems to get the app to connect to the amplifier. 

-I've updated the amp to the latest firmware using my laptop/web browser. 
-I've followed all the instructions in the Bluetooth Connectivity Troubleshooter to the letter (CODE - Gateway Bluetooth Connection Troubleshooting - my.marshall.com)

No matter what I do, or what order I install/uninstall/connect, the app will not see the amplifier. Everything works otherwise - I'm able to apply Patches from ? using a USB connection - and the amp sounds great. I'd just like to be able to control it from my phone.

How to stabilize the connection between amp and android device .

When I first synchronize amp and gateway app it stays about 20 seconds and cut. I've tried many things as deleted gateway and restart  but nothing seems good. 

What can I do

Hi, 

Am the pround owner of a Marshall Code 100 Combo, or rather, I used to be proud.

My problem is your bluertooth app.

It simply doesn't work.

I have installed on my Huawei phone (android) and  Nexus 7 tablet.

It used to work fine on both , now the app appears to be corrupted and the display is completed stuffed. ( yes I have uninstalled, rebooted and re-installed).

Also it doesn't recoginse my credentials. I means the program asks me to login (same  credentials as here), but there is no way to enter my details, no places to type my email addess etc.

Have you now stopped working on the Gateway app?

I need to know, as if you have, I'll be getting rid on the amp, as it's no good to me as it is.

Plugged in today and literally not working just an error message. Anyone else same issue?

I hope this is a really easy fix - I am pretty sure I have missed something really basic so thanks for any support.

I have used Gateway to download new presets and reorderd them as on the tuition video. However, this new order is not showing on my Code head and is not available unless I am connected via a cable.

How can I fix this as I do not want to be constantly reliat on fiddling with my phone?

Marshall Gateway App for Android, WOW! so worn out with this things eternal frustration. Googlel play won't install the App saying my android version is too old. I have version 9.  WHen I manual install the app starts then goes black. It's running in the background but I can't access it. Any help it so apprecriated.  I've looked at 40+ solutions I found on google and nada, no luck no how.  My Phone is a ZTE Z5531s, I've done a hard reset..S, almost ran the bootloader and used the SDK Studio for android. If you have a solution or even a suggestion it is very appreciated. I'm disabled and buying another phone right now is out so I got make this work.  Chris

While using the Marshall Gateway App on my iPhone 7 or SE (I'm assuming this happens on other iPhone models as well),  the "Playback" page automatically defaults to "Apple Music" when I want to add tracks to jam to with my Code 50 amplifier. 

My question for Marshall Support is: Can you make the iPhone Gateway App allow selections of tracks from locations other than "Apple Music" on the "Playback" page?

It would be great to be able to select tracks from my other files like "One Drive" or "Files".  Your competitors like the Boss GT-1 and the Spark 40 allow tracks to be added from ANY location when using their jam-along features. Limiting your choice to "Apple Music" really limits the jam-along experience on your app.

Thank you for considering making this useful update to your iPhone app.

Hy

I uninstalled the gateway application on my iphone because it did not work well, I reinstalled it and on the screen it tells me
( Context 3D not available posssible reason wrong render mode or missing device support ), Could you help me?

I have the Marshall gateway app, a multieffects pedal, a interface Focusrite and a accustom guitar but I can’ get any sound out of the speaker! Help!!

Hi, I tried to install mygateway app into my iphone X. It was successfully installed but I could not open the app. It shows error message in the phone screen.

Can you please help. Thanks

My new Code 50 Amp won't connect to my iPad. They are paired via Bluetooth, and Gateway detects the amp. When it tries to connect, it perpetually displays 'Connecting........'

What am I missing?

The Gateway App on my i phone will not work since my removal and reloading  it. I get the message "Context3D not available! Possible reasons: wrong renderMode or missing device support". How do I rectify?

Hi,

I just got my Monitor II ANC and found out the headphone cannot detect by the Marshall Bluetooth android app. Which Bluetooth connection to my phone is perfect.  

Anybody having this issue recently?

Regards,

Tommy

I have a xiaomi redmi note 8 and also have a problem connecting the marshall gateway app to the amp code50.
I can only be connected as if I were listening to music, I even tried to connect it with an otg adapter, it works like that, but there are a lot of problems with braking the application? Please if it is possible to solve this problem.

 And if I tried all variants except one, and that is to uninstall every marshall application to amplify my Marshall Code 50 Firmware 1.4.4 recognize bluetooth connection from which I can control my installed Gateway 1.5.5 of course not just music to listen to But that I have complete control and whether maybe the problem is that the usb is included in my computer, whether to turn it off because I registered everything else. If anyone can answer all these questions I will be grateful.

Hello everyone, I own the Marshall CODE 100H and CODE 212 cabinet.I really love this amp, but I find the MY GATEWAY web page interface to be somewhat awkward to use. The following are issues that I would like to see changed.

1) On the My GATEWAY web page, the preset list at the top is arranged by columns (as it should be), but the MY LIBRARY list below that is arranged by rows.

?

2) There is no indication in the MY LIBRARY section on the MY GATEWAY tab whether a preset is or isn’t in the MY GATEWAY list.

Hey Fellow Marshall Code enthusiast...As most of you are. I like to use all the features of my equipment hence the Marshall gateway. The short is after months of not getting it to connect to my iPhone I thought let me try the Gateway on my iPad Mini 2?? Aha it works...So the iPad is using iOS 12.5.2 and my iPhone uses iOS 14.4.2. I always keep any of my software up to date with rare exceptions..So it seems the problem is with the Gateway and the newer iOS? So maybe the gateway needs to be updated to work with the latest iOS? Hope this helps?