What are the causes of my public LAN network intermittently? Please enlighten master! I connected to the LAN through a firewall -->; -->; the fiber network and the recent public on the Internet, often cut short, tempered another company. The environmental structures, not a machine through the Internet firewall, a firewall to the Internet. Firewall is not subject to the test results can not simply through the firewall often swap. So the problem in the firewall. What caused the firewall can cut off public and the connections? Firewall provider to the Engineers, the basic configuration is a transparent. LAN can be caused by the operation of any illegal (because he is not every day off), how to investigate. What are the causes or the other? What are the causes of my public LAN network intermittently? Please enlighten master! Try the intermittent Fiber Transceiver is not caused by the poor-quality all-admission [ Closed window ]