Common faults and solutions for Tespro industrial routers: first is dialing failure, check if SIM card is overdue, APN configuration is correct, antenna is properly connected; second is network dropout, check signal strength, recommend high-gain antenna for weak signal, enable dual SIM backup; third is serial communication failure, check baud rate, data bits, parity parameters, confirm wiring is correct; fourth is device crash, Tespro hardware watchdog will automatically restart, recommend regular firmware upgrade; fifth is port mapping failure, check if operator provides public IP, recommend VPN or cloud platform penetration. Tespro provides 7×24 remote operation and maintenance support, professional engineers respond within 2 hours, 24 years of technical accumulation ensures rapid problem resolution.
