So here is a new, easy and convenient way to do it. In the older version of the default HiLink app, there was a trick (turning on wifi extender mode, going back to network setting, then the option of 3G only mode magically showed up) to do this but with updates of HiLink app, the trick vanished completely. So, we need an option to force 3G only mode or 4G only mode. This is really unfair and inconvenient because speed on even weak or unreliable 3g network is better than reliable and strong 2G. There is just option to tick a choice titled “ Supports 3G network” or “ Supports 4G network“. The option to choose 3G only mode or 4G only mode is not present either in HiLink app or in the admin web interface. Speed degradation, all of sudden due to auto-switching of network, feels like crime done to us. This has been quite frustrating for me and many other users like me who don’t have great network reception in their area. However, if there is fluctuating or not so reliable network signal, huawei modems prefer switching to lower speed band like, 3g or 2G in case of 4g routers, just 2g in case of 3g wifi dongles. Where there is strong network signal of desired network band, there is no issue. However, if you go to network settings either on the HiLink app or the web interface, you’d disappointingly find that no such option is there to force 3G only mode or LTE only mode. These devices can also be managed from web interface. Huawei has a dedicated app called HiLink (which can be downloaded from here) to manage admin interface of such 4g routers. This is a quick tutorial on how you can enforce 4G only mode or 3G only mode on huawei 4g or 3g routers or so called 4g/3g/2g WiFi dongle/modem.