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I have a Monthly contract with vodafone and can get 4G on my phone no problem, when away in the caravan if there is a weak signal I put my sim in a Mifi unit E5577 which I can position in the best signal area.
I only notice last trip the the Mifi will not connect to 4G if I set it to 4G only it comes up no service.
I have tried it at home with very good 4G signal and get the same results.
I put my sons Smarty sim in and it comes up 4G so I know it does work I have now tried 3 Voda contract sims and none will work in it on 4G
Has anyone any idea what to try I've messed with the APN settings and tried wap.vodafone.co.uk with username and password as wap but still 3g only?
I noticed the problem while I was away in Norfolk I could get 2 bars of 4G outside the caravan but using an external antenna and the E5577 could get full signal but only 3G in the caravan.
I have been testing it at home with full 4G signal with same problem
If you're getting the same issue in numerous locations @NSP24, this can indicate the the problem originates from your SIM or device as these are the common factors in all your connections. Are you able to connect to our 4G network in these locations with your SIM in another phone/device?
the sim works fine fine in my p30 pro and I've tried another 2 vodafone sims and they dont work in the mifi.
the mifi works fine with a smarty sim that I tried just not vodafone
in Norfolk I was getting about 2.28 mbps but here at home 19.1 mbps with the smarty sim 40.3 mbps (4g)
just tested my sim in the phone and got 44.9
From the information you've provided @NSP24 it sounds like the issue is connected to the MiFi device. When you pop your SIM into different devices you can see a small difference in speeds, but as you're seeing such a large difference this sounds like the issue lies with the Huawei device. This could sorted by a simple change in settings. Can you check the device settings and let us know what APN's the device uses to connect to our network.
I can connect to 3g no problem using various apn settings
eg APN = internet
also wap.vodafone.co.uk user = wap pw = wap
there is only 4 settings name, apn, user, and password
just tried a Sky mobile sim in it and getting 4G but its only slightly faster then vodafone 3g
I have also contacted Huawei but they could not help but I gave them the serial number and they said its not a uk device and that could be the reason I've always used a 3 sim in it with no problems I cannot even remember where I bought it.
If you have any other APN setting to try please let me know I might have to get a 3 sim or another mifi/router
Thank you for your help with this!