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neacel
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Mikrotik hEX RB750Gr3 Suddenly Not Functioning

Mon Jan 11, 2021 2:10 pm

Hi Everyone,

I have a MikroTik hEX RB750Gr3 that suddenly not working after power outage. When the power back on, the router keeps on beeping, No IP address or Mac address detected by Winbox. I tried using Putty to log in but nothing happened/still the same. I have tried resetting but nothing happened also. The "usr" have steady light and sometimes flashing. Please help what to do.

Thanks in advance.
 
sindy
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Re: Mikrotik hEX RB750Gr3 Suddenly Not Functioning

Mon Jan 11, 2021 2:20 pm

Try using another suitably rated power adaptor first (the inrush current during the power-up might have been the last drop for the original one if it was already "tired"). If that changes nothing, try using the backup bootloader following this instruction. If that still changes nothing, try following the instruction to put the router in netinstall mode; if it stops beeping after that, try to execute the netinstall (there is nothing to lose as your configuration is not accessible anyway).
Last edited by sindy on Mon Jan 11, 2021 2:21 pm, edited 1 time in total.
Instead of writing novels, post /export hide-sensitive. Use find&replace in your favourite text editor to systematically replace all occurrences of each public IP address potentially identifying you by a distinctive pattern such as my.public.ip.1.
 
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anav
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Re: Mikrotik hEX RB750Gr3 Suddenly Not Functioning

Mon Jan 11, 2021 2:20 pm

How long did you hold the reset button?
Did you try netinstall?
I'd rather manage rats than software. Follow my advice at your own risk! (Sob & mkx forced me to write that!)
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neacel
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Re: Mikrotik hEX RB750Gr3 Suddenly Not Functioning

Tue Jan 12, 2021 8:43 am

I have tried pressing the reset button for 15 seconds nothing changes. I have no spare power adaptor to test. The router now stops beeping.
 
neacel
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Re: Mikrotik hEX RB750Gr3 Suddenly Not Functioning  [SOLVED]

Tue Jan 12, 2021 3:23 pm

After searching solution online, I got my router working again. I manually did netinstall. You can find instructions here: https://wiki.mikrotik.com/wiki/Manual:Netinstall and the package here: https://mikrotik.com/download

Solved.
 
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anav
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Re: Mikrotik hEX RB750Gr3 Suddenly Not Functioning

Tue Jan 12, 2021 4:27 pm

thats what i suggested two posts up LOL.
I'd rather manage rats than software. Follow my advice at your own risk! (Sob & mkx forced me to write that!)
MTUNA Certified, by the Ascerbic Llama!

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