1. AC Question's Avatar
    My wifi calling has been working fine. Now, after leaving the wifi area and returning, I first got DNS error, so I added address. Now am getting er101-invalid certificate. Turned off wifi calling, wifi and rebooted phone. No help.
    11-19-2015 02:56 PM
  2. the tall guy's Avatar
    Hi, did you manage to get this issue resolved? does this issue only happen with your phone or others that are using the WiFi?
    11-26-2015 02:47 AM
  3. kgm4714's Avatar
    I don't know about OP. But I started getting this ER101 on my Galaxy S5 on Christmas. The phone doesn't care which network it's on or who the ISP is; it throws this ER101. My wife's Kyocera Hydrowave has no problem with Wi-Fi calling. We're both on Metro PCS. I've been through the ***** checklists: Turned Wi-Fi calling off and on; turned Wi-Fi off and on; cycled power on the phone; turned off the phone, pulled the SIM card, re-seated the SIM, turned the phone back on. Still get the error message. Would love to know how to fix this once and for all on all nets, all ISPs.
    01-13-2016 06:12 AM
  4. kgm4714's Avatar
    I've been through the ***** checklists
    Are you serious!? This forum censors ID10T!?
    01-13-2016 06:13 AM

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