You can open the security software-toolbox-preferably DNS-and follow the prompts. See if you can solve the problem. Of course, the landlord can try QQ browser 9.0, which I used when I went to Meituan. Its developers are experts who have participated in the performance optimization of win7 and win8, and can better grasp the characteristics of the system. It is also the highest version of chrome in the industry. It can open web pages very quickly, and there will be no problems of jamming and crash.