Separate printer hardware, the physical connection, local network reachability, station behavior, routing, and vendor service before recommending replacement or configuration changes.
Run only manager-approved, non-customer tests and reversible checks around the receipt or kitchen printer, POS tablet, ordinary cabling, switch, Wi‑Fi, and router—without collecting payment data or taking over the merchant account.
Protect business continuity with a written safe-stop point, evidence log, and rollback plan; disruptive resets, queue deletion, re-pairing, and network changes never run automatically.
Provide a service summary showing what worked, what failed, which system owns the next action, and the exact information Square, Toast, Clover, the hardware maker, ISP, or replacement vendor needs.