Private user   •   about 2 years ago

Node Error when connecting to Testnet

I followed the initialization for a node to connect to Testnet as described here:
https://docs.thetatoken.org/docs/connect-to-the-testnet
However, it never syncs with it, showing this error:

[2021-02-12 06:22:47] WARN [p2p] Failed to retrieve previously persisted peers
[2021-02-12 06:22:47] INFO [p2p] InboundPeerListener listen routine started, seedPeerOnly set to false
[2021-02-12 06:22:47] INFO [rpc] RPC server started address=0.0.0.0 port=16888
[2021-02-12 06:22:58] WARN [p2p] Failed to connect to seed peer 54.219.137.110:15872: dial tcp 54.219.137.110:15872: i/o timeout

Do I need to have other ports open apart from 15872??
Also, what is the Testnet explorer??