The troubleshooting steps are as follows:
1. First, confirm what the bandwidth is? How many terminal clients are there? And what are the Internet surfing services?
The purpose is to eliminate the network bandwidth itself is relatively small, and slow Internet access of the network card caused by other clients which be used to download, watch video and other traffic-consuming Internet surfing services.
2. Compare other devices, such as mobile phones, test the mobile phones and network cards to connect the same wireless signal at the same location, do the same online behavior, and test whether the mobile phone has slow Internet access.
The purpose is to check the slow Internet access caused by network and signal quality.
3. Excluding the above two possible situations, it is recommended to connect a USB extension cable to see if it improves.