When Archer and T'pol first arrived to meet with the Andorians, the Andorians were angry that Archer had not come alone, but they had two bags ready to put over Archer's and T'pol's heads.
Admiral Forrest states that this is the first time the Vulcans have asked them for help, but in Fallen Hero (2002), they asked Enterprise to transport an ambassador for them.
Ambassador Soval says he doesn't understand why an officer of the Andorian Imperial Guard would request Captain Archer's presence. But with the events at the P'jem Monastery in The Andorian Incident (2001) and Shadows of P'Jem (2002), Ambassador Soval should have been well aware of the connection between Archer and Commander Shran.