Ok well in my case the setup is at my farmhouse which is at a remote location.. where I use the dongle with the TL-MR3220 to view my cctv cameras
and since its not possible to physically restart the router everytime , I devised a solution that involves a timer relay. ;)
I used a 12vDC timer relay which gives me option of setting 16 on/off functions per day.
So I connected power supply via the timer relay (to the NC of the relay) and programmed it to switch on for 1 min every 3 hours. So when the relay of the timer switches to on state (NO) the router switches off for a min and then starts again .
If ever I lose the connection in between the 3 hrs span , I would only not have internet till the next restart. :D

Hi was having the same unplugged issue when operating in 4g mode (no problem with 3g} and the USB Y cable sorted it

I have same problem but with 3272 hilink modem.
I use 2A power supply.
Got lots of DC (unplugged) any have only one option. Power of modem and router and power on. Modem without mr3220 wok ok and no problem with him.
Ps. Sry for my ENG

The problem seems to signal strength of the ISP in particular are. But I am also I am confused as to how a computer can handle it so efficiently while router gives this kind of problems. TPLINK should look into this and solve this for us. I am very much annoyed with this problem.

I had the same problem after the USB connector in the router became la bit oose after much plugging and unplugging of the USB modem. A friend gave me his brand new 3420 and I don't have this problem anymore.

MITH wrote

The problem seems to signal strength of the ISP in particular are. But I am also I am confused as to how a computer can handle it so efficiently while router gives this kind of problems. TPLINK should look into this and solve this for us. I am very much annoyed with this problem.