mr600v3 || India all Sim(Airtel,Jio & VI) not working || No service
Hi,
Location: India
I have been using the MR600 V3 router for the past 4 years without any issues. However, for the last 3 days, I have been facing a problem with the router.
Recently, the router was upgraded to firmware version 250915. After the upgrade, it worked fine for a few days, but suddenly it started showing “No Service.”
I have already tried the following troubleshooting steps:
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Tested multiple SIM cards (Airtel, Jio, and VI)
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Verified that the same SIM cards work properly on mobile phones
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Downgraded the firmware version to 240716.
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Changed APN settings
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Changed LAN DNS settings to 8.8.8.8
Unfortunately, none of these steps resolved the issue, and the router still shows “No Service.”
Please help me identify the problem and provide a solution.
Thank you.



