TL-MR 100 Frequent Disconnection Issue
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I am from India and using Vi Sim as ISP provider but .After all configuration it disconnect after certain time,although in router internet light is glowing. Also I want to know you that VI is not included in your ISP, So I need to configure it manually. Please resolve this issue as early as possible.
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Hello, thanks for asking.
For your case, please help check the following information:
1. How long have you had the router and when did the issue start?
2. Could you please send me screen-shots of the advanced-status page again before and after the connection dropped?
3. When the connection loses, what did you need to do to recover the connection, reboot the router or it would come back automatically?
4. Please confirm if the disconnect issue was caused by the auto bands-switching, you may check what is the band when it connects and what is it when it disconnects.
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What if you put this SIM card into your phone, will it work fine without any drop?
If that is the case, it is suggested to contact the local tech support to confirm if they can help with the replacement, as we have no more suggestions on this:
https://www.tp-link.com/en/support/contact-technical-support/#Hotline-Support
Good day.
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@Kevin_Z Same Issue any tell me how to fix this is very Iriteating internet light light is on my net not working fix this
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May I know which firmware are you on now with the MR100?
As per the error message you experienced (error code 71211), it seems that you select a wrong file, please check again if you download the correct beta firmware for your MR100, you need to unzip the file first after downloaded. Here is the latest beta firmware for the MR100:
https://static.tp-link.com/2020/202008/20200828/MR100v1_Firmware_Dbg_25n_2020-06-12_18.07.19.zip
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@Kevin_Z Again sir Error
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Thanks for getting back quickly. As confirmed with our engineers that you cannot downgrade to the previous beta firmware from the latest 201016 version, so no need to reset the router to factory.
As for the unstable issue you are encountering, can you please provide more details, then our engineers will help investigate it?
1. Who is your SIM card carrier?
2. Could you please send me screen-shots of the advanced-status page before and after the connection dropped?
3. When the connection loses, what did you need to do to recover the connection, reboot the router, or it would come back automatically?
4. Please confirm if the disconnect issue was caused by the auto bands-switching, you may check what is the band when it connects and what is it when it disconnects.
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@Kevin_Z Sir Im using VI 4g sim card for internet. Net connection is very good but every 2-3 hours my net is diconnect automaticily my pc show no internet but router internet light is on.
i check my lan cable, pc settings but everything is fine.
my wifi net also not working in my phone shows no data reciving.
To solve this im restart my router
when i restart router then internet is work properly
sir maybe this is a router error or glich, bug something Plese solve this 
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