Hi I think wifi-calling is based on ipsec vpn. so vpn passthrough must work. many firmwares have problem with that. you can try this beta firmware: Link

Hi you can disable roaming:

cloud9 wrote Model : Hardware Version : Firmware Version : ISP : Hello there. I just recently bought TP-Link Archer MR200, and everything seems to be working fine, at least until I tried to access...

Hi I had the same issue with IPSEC Passthrough. Try this beta Firmware and it should work: Link

phoenix1 wrote I have received a firmware for mr200 from tp-link support. i don't had the time to test it. you can download it here: Link After flashing the beta firmware, VPN Passthrough works!!!

phoenix1 wrote same problem. can anyone post a download link to the beta firmware "MR200_V1_Beta_160706"? I need a working ipsec tunnel throuth mr200 I have received a firmware for mr200 from tp-link...