So many hotels I stayed at (3~4 stars ratings) provided too slow Wi-Fi. The speed is somewhere around 2~3Mbps, and it frequently falls down to <200Kbps.
However, once you find that your hotel provides such a terrible Wi-Fi environment, is there anything still that you can take an action there? In hotel search websites, many hotels are tagged with Free Wi-Fi or even Hi-Speed Wi-Fi but it is not reliable in my experience.
Note that I'm not asking for whether it is possible to know the quality of Wi-Fi at hotel in advance, which has been posted in this question. What I ask here is how you can deal with it when you find your hotel provides a terrible Wi-Fi.
Usually, I get through it by going into cafe with Wi-Fi. But still, the cafe might not provide you with a good connection. Also I want to use my Mac in midnight, when most cafes are not open in general.
I also make sure to contract a local SIM with 4G/LTE and tethering capability, but still, the tethering fails to connect too frequently in many cases.
This is what is happening on me right now in Shanghai, that the hotel's is terrible, all cafes I tried (including Starbucks) suck, and China Unicom 4G/LTE is too slow even without VPN. It's really stressful...
So is there still anything I can do to assure the good network environment? (except changing the hotel which I do once the current booking ends)
My point is that I want to use my Mac whenever I want (including midnight), since it is a part of my job (working while traveling). The minimum requirement is a stable access to GitHub and Stack Overflow and fast google search responses. I don't need much speed (around 7 ~ 10Mbps is sufficient) but cannot tolerate <2Mbps, since it takes me to wait for so long. For me, the stable, undisconnected network is far more important than the speed and latency, once it is above 3Mbps. I don't download/upload large files at once (e.g. videos or hi-res pictures or big softwares, those with >500MB).
If a list of countries is required, I ask for Hong Kong and China (Shanghai/Beijing). But this occurred in Singapore and Japan as well. South Korea never bothered me in this regard, though, as the major cities are full of terrific Wi-Fi cafes.