By default, orders are suspended on disconnect, and these orders cannot be reinstated

Can also be set as: do not suspend / suspend all / suspend all except GTC and GTD.

Cboe offers the following options:

1. Cancel all open orders (continuous book and on-open, on-close and periodic auction orders).
2. Do not cancel any open orders.

CFE offers the following options:

If Cancel On Disconnect is set, open orders in products that are not in Closed state at the time of the disconnect are cancelled.

• All — Cancel Day, GTC and GTD orders
• Day — Cancel only Day orders.
• None — Disabled

CME offers the following options:

If Cancel On Disconnect is set, open orders in products that are not in Closed state at the time of the disconnect are cancelled.

• All — Cancel Day, GTC and GTD orders
• Day — Cancel only Day orders.
• None — Disabled

Configured on the Connection:

User (Connection UserName) level

The setting will apply to all orders - Day/GTC/GTD

On the Account, this is set via "Send All Orders as Standard Persistent Orders" — Determines that all orders submitted using this account are routed to the exchange as persistent orders via a low frequency (LF) session with the "standard" attribute set by the TT platform. Persistent orders always remain working after a session disconnect, session logout, or exchange outage. GTC and GTDate orders are always persistent. If this option is enabled for an account, ensure that an LF session is assigned to the account.

On the Account, this is set via "Send All Orders as Standard Persistent Orders" — Determines that all orders submitted using this account are routed to the exchange as persistent orders via a low frequency (LF) session with the "standard" attribute set by the TT platform. Persistent orders always remain working after a session disconnect, session logout, or exchange outage. GTC and GTDate orders are always persistent. If this option is enabled for an account, ensure that an LF session is assigned to the account.

An order working in the market will be inactivated 10 minutes after the occurrence of a system failure at the Exchange Participant's site, unless the Exchange Participant has instead requested that the Exchange keep the Order active upon site failure. Following a disconnect or site failure, TT order connector will delete all inactive orders from the exchange order book upon reconnection to the exchange. Inactive orders deleted in this fashion will be replaced with local "On Hold" / "Suspended" orders in the order book.

SGX offers the following options:

1. Keep all orders active (Day, Market, GTD and GTC orders)
2. Inactivate all orders (Day, Market, GTD and GTC orders) or
3. Keep GTD and GTC orders and Inactivate Day orders. For inactivation of orders, the action will only be done on the 90th second (after 2 heartbeats) from the time of involuntary logout and immediately in case of voluntary logout

Orders that have been inactivated on logout will remain inactive when the user next logs in. Following a logout (involuntary or voluntary), TT order connector will delete all inactive orders from the exchange order book upon reconnection to the exchange. Inactive orders deleted in this fashion will be replaced with local "On Hold" / "Suspended" orders in the order book.