A network technician is adding a new switch to increase capacity on the network. The technician connects the two switches using a single cable. Several hosts are moved to the new switch, but none of the hosts can access the network or Internet. Which of the following should the technician to resolve the issue?

Installing STP (Shielded Twisted Pair) cables does not address the underlying issue of VLAN communication. The type of cabling may affect performance but will not resolve the connectivity issue stemming from improperly configured ports. The existing cable type is not the problem; it is the port configuration that needs adjustment.

Increasing the Power over Ethernet (PoE) budget is irrelevant in this scenario, as the problem lies in connectivity and not in power supply. The hosts require a proper communication path to the network, which cannot be resolved by merely adjusting power levels.

Link aggregation could potentially enhance bandwidth and redundancy between switches, but it does not directly resolve the issue of host connectivity due to VLAN misconfiguration. If the ports are not set as trunk ports, link aggregation would not enable proper communication for the hosts on the new switch.