With Gigabyte GA-78LMT-USB3 Mobo upgrade on desktop comp, 5m long USB cable conn to Jio 4G dongle and router is not working well

I recently upgraded my old Motherboard (Asus M2NPV-VM) based desktop computer to a new motherboard based one, which forced me to change processor and RAM too due to compatibility issues. The new motherboard is Gigabyte GA-78LMT-USB3 rev 6.0, https://www.gigabyte.com/Motherboard/GA-78LMT-USB3-rev-60#ov. Windows 10 OS is installed on the desktop computer.

Other aspects of my desktop computer are very satisfactory so far, but one disappointment is that, with its default settings at least, its USB 3.0 ports do not seem to work properly with a 5m long USB cable connection to either Huawei 4G dongle OR JioFi 3 4G router. This long cable arrangement works with the USB 3.0 ports of Dell mini-Laptop. So I expected it to work with the new motherboard USB 3.0 ports! I was told that some USB power related software is available on the Motherboard CD which I can use to increase the power on the USB 3.0 ports, which will solve the problem. I plan to explore that over the next few days. However, that it is not working out of the box (i.e. with default settings) is a disappointment.

Plugging the Huawei make 4G USB dongle directly to the USB 3.0 ports works. It gets detected as a USB device and its associated storage area (with Mobile Partner installation file) gets shown. During installation of Mobile Partner I think the USB driver for this device gets installed besides the Mobile Partner application. After installation, one can connect to Jio 4G either through Mobile Partner application or through Mobile Internet icon shown on taskbar (LoopMobile under Mobile broadband, if I recall correctly, has to be chosen).

Plugging the JioFi 3 router via its USB cable is not as well organized as the above Huawei 4G dongle case. [But this issue is very similar to, or the same in the case of Dell Mini-Laptop with Windows 8.1 and JioFi 3 router. So it is a JioFi 3 router issue and NOT this Gigabyte Motherboard issue.] No device driver/installation comes into play. The network connected icon also DOES NOT APPEAR on the taskbar. However, a few minutes after the JioFi 3 is connected via USB cable, using the browser to browse the Internet works. Then the Network connected icon gets shown on the taskbar. The description of the device/network under Network Properties is given as “Remote NDIS based Internet Sharing Device”. The USB devices icon comes up indicating that the OS recognizes that this device is connected via USB but there is no entry for ejecting this device. In contrast, for the Huawei 4G modem/dongle, an eject device entry comes up corresponding to it (don’t recall the name now) which one can use to eject the device before one physically disconnects it. In case of JioFi 3 one has to physically disconnect the device from the USB port of the computer WITHOUT any prior software command, which is NOT a nice way to disconnect a USB device.

I get varying speeds for the JioFi 3 router in this arrangement where it has to be placed close to the desktop as its USB cable is short (around 2 to 3 feet). Sometimes it is a healthy for my needs speed of 3 to 5 Mbps (during daytime) but sometimes it drops to below 1 Mbps (e.g. 560 Kbps – fast.com, 0.46 Mbps – Ookla Beta at one time today, 21st Sept., afternoon). The quick solution to improving these speeds by using a long 5m (or even 3m) cable (extension) which will allow me to place the JioFi 3 either closer to bedroom/balcony door or in the balcony where the 4G signal reception is better, is not available to me as the new Mobo’s USB 3.0 ports do not work with long USB cable connected to JioFi 3.

With the Huawei 4G USB dongle directly plugged in to desktop comp., the speeds were in the range of 3 to 5 Mbps but sometimes dropped to slightly more than 1 Mbps. I don’t think it dropped to below 1 Mbps in my casual tests.

Note that the Huawei 4G USB dongle works for some time with a 3m thick (copper wire) USB cable. However, Chrome tends to get stuck at times but then recovers after a minute or two. So there is some flaky (not reliable) success with 3m USB cable in case of 4G dongle with desktop PC and new motherboard. But it is not like the Dell mini-Laptop case which gives smooth working even with a 5m long (and thick) USB cable connected to Huawei 4G USB dongle.

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