# Different transport: Mainnet (GQL) and Mainnet (ADL)

By clicking on the transport name at the top of your screen, you can change between various networks.

![](https://3979679368-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FvwtaQbYcgICT7ubKSITZ%2Fuploads%2FjkfTccswBavVbRjzNGfO%2Fimage.png?alt=media\&token=848b8ad7-d219-4ebe-8ff6-3e13b99c63f5)

This can be useful if you are experiencing problems with transactions through your wallet.

GQL is main.ton.dev 

ADNL is a backup transport in case of problems with GQL

In general, the difference is that GQL works faster, ADNL is a simple RPC server for a C ++ node, it works slower, but it can work with any node, in the near future we will publish it in open source and it will be possible to connect a wallet to your nodes. In general you can choose GQL, in case of problems the wallet should switch to ADNL itself.