Cryptopia's Dime wallet has 0 connections at the moment, see: https://www.cryptopia.co.nz/CoinInfo/?coin=DIME

The block explorer says there are hundreds of nodes available, see: https://chainz.cryptoid.info/dime/#!network

I asked Cryptiopia to fix it.

Cryptopia has closed DOGE/LTC markets due to the heavy load. They are planning on reopening an LTC market shortly, see: https://www.cryptopia.co.nz/News