How to complain after the house is delivered?

Complain about the residential property and go to the Consumer Protection Association.

Whether residential broadband can be opened or not is a matter of municipal departments and planning. It is possible without resources. Things like this can only be solved by adding corresponding interface resources to the telecom department of Netcom. If there are many households applying for Internet access in the community, you can find some network companies to provide Ethernet access after comprehensive wiring.

"Property Management Regulations" clearly stipulates that the property company is only the "housekeeper" entrusted by the owner to manage the community. In other words, the relationship between the property management company and the owner is to hire and be employed, and the owner employs the property management company to serve himself. The main responsibility of the property management company hired by the owner is to provide good services to the owner according to the contract and the owner's requirements.

What are the reasons why the mobile phone has no signal?

The environment is closed. If you are in an underground shopping mall or in a closed elevator, your mobile phone will receive information from time to time, so the information will be blocked because of the interference of buildings or other items.

Area switching, when switching the calling area, if the conditions are not met, the call will be dropped. Just like the location of a call crossing from one service area to another, there will be no signal. Because many users in the new service area are busy at random, in many cases, the handover will fail, so the disconnection phenomenon occurs.

Radio interference, when there is strong radio interference, the frequency of disconnection will be high. This is because mobile communication depends on the propagation of radio waves in the air. If the radio wave is disturbed in the propagation process, it will hinder the signal modeling and its noise ratio will drop below the standard value. At this time, your mobile phone is likely to turn off automatically.