I'm sure that all blocking were processed automatically and this filter found suspicious activity on your account.
So, I have some advices:
1. Don't use any public network connections (Wi-Fi) or VPN/proxy that may be in Bittrex blacklist.
2. Try to enter account from the one device and browser.
3. Don't deposit crypto from suspended exchanges (like WEX - renamed BTC-e).
4. Enter your account regularly.
5. Don't make large and often deposits/widthdraws especially using anonymous crypto like DASH or Monero.
And all will be ok.
I use a VPN and I've never had issues. If I weren't allowed to use a VPN I'd probably take my business elsewhere.
Also, what makes you think that depositing coins from WEX is an issue? Has
anyone ever had their account frozen after depositing from WEX? WEX might appear to be BTC-e, but the fact is that they have a completely different corporate structure in Singapore. I highly doubt anyone will blacklist WEX until/unless the US government indicts them as well.
Do you have any idea how many accounts must have logged in from the same IP at some point? IP is meaningless. They can be spoofed and changed incredibly easily. If Bittrex is using this to auto-disable accounts, I'd advise people leave there immediately. Then again, I don't think this is why Bittrex is disabling accounts...