I have just bought an Archer MR600 router and was trying to set-up 4G Internet connection but my card is not recognised.
I must say that I am from Romania and having a 4G SIM from Orange. I have also tried with a Vodafone one but still does not work. Error is SIM not detected
I tried also to set the ISP settings manually (from Orange / Vodafone website) but SIM card is still not recognised.
The third attempt was to upgrade the ISP with the one from the oficial website: https://static.tp-link.com/2019/201909/20190903/Archer%20MR600(EU)_V1_ISP_19502401.zip
However, when trying to upgrade it I get error 71212 (Failed to upload isp file. Please select the correct file and try again).
Can you please help?