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Getting this error when trying to open a channel with an existing peer:

Unable to open channel, funding amount is too large, the max channel size is: 0.16777215 BTC
  1. Where is this limit set up and why is there?
  2. Is there a way to allow the creation of a 'large' channel?

1 Answer 1

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If you have the same/similar issue check if protocol.wumbo-channels=true is under the protocol section of your lnd configuration file:

[protocol]
; // If set, then lnd will create and accept requests for channels larger than 0.16 BTC
; protocol.wumbo-channels=true

If not there, this look is a default setting in LND nodes, to change this settings you need to add protocol.wumbo-channels=true

$ sudo vi /mnt/hdd/lnd/lnd.conf

Then you need to restart LND

$ sudo systemctl restart lnd

You can keep an eye on LND logs as it restarts

$ sudo journalctl -f -u lnd
  • YOU HAVE TO WAIT A FEW MINUTES BEFORE TRYING AGAIN TO OPEN A CHANNEL AS YOUR LND WILL HAVE TO RECONNECT TO ALL ITS PEERS *

Then open your faaaat channel

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