@wsosniak Can we have the whole system log about the info you mentioned here? When those devices cannot connect to the network, was there any error messages on them? What are they, are those specific...

@Coconutshake As far as I know, the IMEI of the router cannot be changed or modified. May I know who is your ISP, please? I have never heard this IMEI lock before, we will check this further.

@Matthew1 Thanks for your reply, glad to hear that you figured it out finally. If you need any further help, do not hesitate to contact us.

@shadow65 Thank you very much for getting back. What if you put this SIM card into your phone, will you be able to read the messages? To locate this issue and try to fix it, we would like to follow...

@Jessie-MR200 By schedule restart, do you refer to the Wireless Schedule feature on the MR200 web interface page? This feature will temporarily disable the Wi-Fi broadcast on the MR200, but not...

@Montana What is the specific symptom when it stops working totally? How about the LEDs status? When you are downloading/uploading pictures, videos, Google Drive, what is the download/uploading...