Today it works again
Here is the message I got from bitfinex:
We do not have any withdrawal limits.
As our withdrawals page states, withdrawals can take up to 12h. We always do our very best to have your withdrawals sent to the blockchain as fast as possible, however, we cannot guarantee instant withdrawals. If you have time-sensitive withdrawals we advise you to set up a local wallet that holds BTC / LTC / ETH / ETC / ZEC / XMR / DASH / XRP / IOTA. Time sensitive payments should not be made from your Bitfinex wallets.
If you can meet all the security requirements of one of the two condition sets that are listed on the withdrawal page, withdrawals will be processed faster. These requirements are:
CONDITION SET ONE
SMS 2FA, Google Auth 2FA, or IP Address whitelisting has been enabled for at least 5 days
Withdrawal addresses for all crypto-currencies (and Tethers if you are verified) have been locked for at least 5 days
CONDITION SET TWO
SMS 2FA or Google Auth 2FA has been enabled for at least 5 days
IP Address whitelisting or Withdrawal addresses for all crypto-currencies (and Tethers if you are verified) have been locked/enabled for at least 5 days
The "Send Email on Login" security setting is enabled
The "Monitor Withdrawals by IP" security setting is enabled and your current IP Address is not new today (has been used before, more than 24 hours ago)
**If any of these requirements are undesirable or impossible, withdrawals will still be processed, but the processing time can be slightly longer. Also, you will receive an email with a confirmation link to approve the withdrawal. **
In addition to these rules, sometimes large or unusual withdrawals will require direct admin approval.