Please help. I have recently bought a tp link mr600 router but it shows 0% signal strength all the time. The internet connectivity is very poor and not at all useful. I have upgraded the firmware and ISP file successfully but still no improvement. I have rebooted the router several times and even factory reset it but still nothing happened. I am providing my model number firmware version and hardware version. When i first boot it it shows 100% signal strength and also 4g+ connectivity but after 2 to 5sec the signal drops and the process repeates several times after i reboot.Please help.
Firmware Version: 1.2.0 0.9.1 v0001.0 Build 200511 Rel.44954n
Hardware Version: Archer MR600 v1 00000001
Please some tp link technician contact me. Thanks in advance.