... dunno what's going on with bittrex they have disabled the withdrawal/deposit function from the exchange maybe they are running maintenance?
There is an ongoing technology update on Bittrex because of which they need to temporarily take markets offline and disable wallets.
If interested on what's going on there you can read more here: https://bittrex.zendesk.com/hc/en-us/articles/360024288132-Bittrex-Technology-Update-What-You-Need-to-Know
Yea just saw that. Hopefully, their update will finish soon because all my EDG are currently stuck in bittrex exchange.
if you are just holding it for long term, I think it's wise to just store it in MEW, I got my tokens stored there, so I don't have to worry about an exchange getting offline. Anyway, Bittrex seem to be having some trading volume problem lately, down to $20M now daily overall.