1. The optical connector of the indoor pigtail connection is loose or in poor contact. In this case, remove the connector and clean it up.
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2. Some indoor optical fibers are bent too much, and excessive bending of optical fibers will affect the total reflection transmission of optical signals in the optical fibers, as long as the optical fibers are straight.
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3, the optical fiber is broken, when the optical fiber bending Angle is too large, the internal fiber has been broken, resulting in the optical signal can not be successfully transmitted in, contact maintenance personnel to rewire.
4. There is a problem with the optical interface of the optical cat, which belongs to the hardware problem of the optical cat. If there is a problem with the optical interface, the optical signal cannot be transmitted to the optical cat.
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5, broadband arrears, now broadband business is basically a post-paid model, operators will shut down broadband services due to customer service arrears for too long, in this case, you only need to pay the arrears.
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6, regional broadband failure, the entire region of broadband may be overhauled or out of the fault in maintenance, in this case you can call customer service to understand the situation, waiting for maintenance personnel to repair broadband.
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7, system problems, if the entire area has been shut down, there is a problem with the system, wait patiently, or contact customer service to explain the situation.