Normally, zec-qt-wallet can pick up the rpcuser/rpcpassword from zcash.conf. If it doesn't for some reason, you can set the username/password in the File->Settings menu.
If you are connecting to a remote node, make sure that zcashd on the remote machine is accepting connections from your machine. The target machine's firewall needs to allow connections
from your host and also zcashd is set to be configured to accept connections from this host.
The easiest way to connect to a remote node is probably to ssh to it with port forwarding like this:
```
ssh -L8232:127.0.0.1:8232 user@remotehost
```
### 2. "Not enough balance" when sending transactions
The most likely cause for this is that you are trying to spend unconfirmed funds. Unlike Bitcoin, the Zcash protocol doesn't let you spent unconfirmed funds yet. Please wait for
1-2 blocks for the funds to confirm and retry the transaction.
adityapk00
6 years ago