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I have the Huawei broadband 4G router, but the signal strength is very weak where I live. 1 maybe 2 bars.
Do Vodafone sell / recommend an external aerial for this router ? This is what the Huawei router home page says..
"Please use only external antennas provided by your carrier. Avoid using other third-party antennas as they may not work as well as the carrier antennas. (Additional antennas can be purchased from your carrier.)"
I'm afraid Vodafone Ireland does not sell this product, however if you contact Huawei directly, they may be able to offer further assistance.
I have the same router and live in a location where Vodafone's mobile phone and 3G coverage is very poor. For reasons I don't understand, I can receive 4G on the B528 with a signal strength of 4 out of 5 bars and download speeds varying between 4 and 15 megabits per second, depending on traffic and weather conditions. I can offer a couple of observations, based on my experience, which might improve your reception without resorting to an external antenna. My house sits on an elevated site. If I locate the router on the ground floor, the 4G signal comes and goes and it is very difficult to connect to the internet as a result. Moving the router to the upper floor of the house improves and stabilises the 4G signal and makes it useable and much quicker than anything I experienced with the mini wifi Vodafone dongles/routers I have used in the past. Interestingly and very strangely, I have found that even though the B528 can achieve a good 4G connection, my LTE mobile phone cannot. Also, the position of the router to find the best 4G signal is critical. It must be in front of a window and whilst the signal is unstable with my router on the windowsill, raising it about a foot above the sill makes a huge difference to the strength and stability of the signal. The downside of having the router upstairs and most of my wifi enabled equipment downstairs is that I need to use range extenders/signal boosters on the ground floor to ensure reasonable whole house coverage, but the same situation would occur in reverse if the router worked best downstairs and I wanted a decent signal upstairs. Fingers crosse that this helps solve your problem.