Headquarters Client - WS 401 random error

I have a store that is getting the below error randomly when polling a WS 401.

<<CStateMachine::ExecureState>> Error 3709: The connection cannot be used to perform this operations. It is either closed or invalid in this context.

Select    ID,

LocalARHistoryType,

RemoteStoreID,

The next error is

An Error was detected, connection will be aborted.

This does not happen every 401, it seems to be more random. Any Ideas or help would be great.

Thank you