Huawei E3372 is definitely supported by ISP because they have manual on their official site for this device. Thank you in forward and apologize my average english and technological amateurism. If anyone has some solution or only advise I would be very grateful. I was so frustrated that I started to combine everything and downloading new drivers, windows updates, checking every corner of the internet to find solution but no advise solved my problem.
I was still recieving the same message from the application. Then I found on some site to type 'netsh int ip reset reset.log' in commad prompt and then reboot my windows. I found some advises on operator official site, which were to change APN in application. Everytime I did this, my only experience was to see 'a connection to the remote computer could not be established'. Everything seemed to be working fine until I click 'connect'. I recieved card, inserted it to USB modem, connect it to laptop and it automatically installed application 'Mobile Partner'. I bough that because I wanted to insert this sim card to Huawei E3372 LTE Modem and so I would have access to the internet because of very slow download speed in college. Today I bought sim card from our national mobile operator, with unlimited connection to the internet.
