MIFI LTE Very Slow - Technical Support - GL.iNet Forum Home » Why Is Mifi So Slow » MIFI LTE Very Slow - Technical Support - GL.iNet Forum Maybe your like Why Is Minecraft So Popular Why Is Moon Yellow Tonight Why Is Moving So Tiring Why Is My Bunny Shaking Why Is My Bunny Stomping MIFI LTE very slow Routers michaelm0829 May 13, 2018, 6:25am 1 my mifi running ec25-e in hong kong, I have 4g travel router and 2 x LTE SIM CARD, I got 4-5 Mbps on MIFI, is there any problem ? how can I fix this? the following are testing result. on MIFI: Sim card A: 4.8 Mbps DL Sim card B: 2.9 Mbps DL on 4g travel router Sim card A: 30 Mbps DL Sim card B: 23 Mbps DL alzhao May 14, 2018, 2:49am 2 maybe it is because the signal is not good enough in the mifi. I am in HK as well and I can get 20+ in the MiFi. MiFi’s internal antenna is not as good as a smartphone. We are redesigning the antenna. michaelm0829 May 14, 2018, 11:38pm 3 Ok, so can i change internal antenna? What’s spec of antenna? Or add external antenna? I found some in taobao, but dont know the requirement, 5dbi, 8dbi or? Can you advise a model for me? I bought two mifi, it’s really worst. alzhao May 16, 2018, 4:22am 4 Hi Michael, I will ask custom support to contact you. nipoli001 May 16, 2018, 3:18pm 5 Hi does the antenna problem affecting older model too? doujinflip May 16, 2018, 8:33pm 6 Will we be able to procure this improved antenna without purchasing an entirely new unit? I’d like to get back to a clean look without a external cell antenna poking out the side alzhao May 17, 2018, 4:22am 7 We do redesign the antenna now. Still testing. Johnex May 17, 2018, 11:20pm 8 Keep us updated on this. I would love to buy an antenna when it’s done Also when you are done testing, post some results so we can see how the old and new compare gedster314 May 18, 2018, 6:58pm 9 I have an older one with an EC20. It is slow too. I’m gonna try punching out the cooling holes and mounting two antennas. Is it possible to swap out the radio? I took out the screws and tried removing the radio card but it did not want to come out. Is it hard soldered on the back side to the domino board? I have a newer radio with better LTE band coverage that I would like to use. Johnex May 18, 2018, 7:01pm 10 There is a double sided foam pad holding the modem on after you remove the screws. You can remove the entire board after removing the screws on the modem for easier access. gedster314 May 19, 2018, 12:52am 11 Thanks. Didn’t want to force it. alzhao May 19, 2018, 2:08am 12 It is double tap. Just remove by force CAREFULLY. gedster314 May 19, 2018, 2:19am 13 In regards to adding antennas. Here is what I did. I went from 2Mbps with internal antenna to 12Mbps with two antennas. These are small 2.5-3.5 db antennas meant for LTE usage. I did not see much improvement with one antenna. Do not attach the internal antenna to the center GPS port as I did here, the radio and mifi got extremely hot after a few minutes and started smelling like hot electronics. gedster314 May 19, 2018, 2:22am 14 Helps if I attach the pic. IMG_20180518_184716-600x950600×950 111 KB alzhao May 19, 2018, 2:26am 15 I doubt this is the correct connection. Maybe no need to connect GPS antenna. Johnex May 19, 2018, 8:31am 16 I would think he fried the GPS part of the module if it smelled bad… lucidtek May 20, 2018, 12:29am 17 I’m getting about 45Mbps down and 25~30Mbps up with external 10db antennas…if they are accurate in their description. Best deal I’ve found: https://www.amazon.com/gp/product/B078SKSQVL Uploads were significantly improved with an extra antenna (+2x). The built in antenna is not MIMO, so it will struggle with weaker signals. Make sure it’s in QMI mode, and not USB. USB never did more than 15~20Mbps for me, even with good external antennas. In my experience, if the interface says 3g-modem (or tty anywhere), it’s not configured for max speed. Also, I have 4 brands of antennas…they are all close, but the ones I linked benchmark the fastest and are the cheapest, by far. External LTE antenna for MiFi gedster314 May 20, 2018, 2:48am 18 Didn’t smell like the smoke was let out, just smelled hot, like residual flux heating up or something. Not sure how to check the gps. I’ll dive into the openwrt forums and look into the AT commands. I don’t need GPS anyway. I’ll probably get a newer modem with better band coverage and maybe cat 4 or 6 when those prices come down. Thanks for the 10dbi link. Already ordered 8dbi antennas earlier today for the same price. Guess I’ll try these too and return the ones that are lacking. I think I have some ts-9 to sma adapters, maybe I’ll use them on my other hotspots. I just use this mifi as toy anyway. I have a few regular hotspots I use for traveling and work. I love the little gli routers, I use them all the time for little projects. michaelm0829 May 28, 2018, 12:00pm 19 Finally, I bought this, AT+CSQ +CSQ: 30,99, seems little improved, but still not acceptable, i dont think it’s related signal, besides tested 2 x ISP SIM cannot register, any idea how to get these work? on MIFI: Sim card A: 7 Mbps DL Sim card B: 5 Mbps DL 11559×1371 642 KB michaelm0829 May 28, 2018, 12:20pm 20 one more question, I got E3372 USB modem, how can I use it and share internet for MIFI? next page → Tag » Why Is Mifi So Slow Question - MIFI Is Super Slow Compared To Phone Hotspot. Help Slow MiFi | T-Mobile Community Very Slow Connection With Mifi 4510L?? - Verizon Community Substantially Slow MiFi Speeds - Verizon Community Why Is My WiFi So Slow: Tracking Down The Culprits - HelloTech Why Is My Wi-Fi So Slow? 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