Guys, need some help here...

I'm using a HP Officejet Pro 8730 printer in my home(linked with my home wifi for wireless printing) and recently I just notice that whenever I turn off my printer, my Unifi will be disconnected as well...

At 1st I thought that was Unifi issue but after few times tested with my printer, I can confirm the printer is causing Unifi disconnection.

But I couldn't figure out how can a printer can cause the internet to be disconnected...

Hopefully some network experts here can enlighten me...

I'm just turning off the power directly from the printer itself. Cause my printer is placed on the 2nd floor, while my router is on the ground floor... I feel strange too


Hmm, never try this way though...

Once I realise my printer is causing the internet disconnected, immediately I turn the printer back on as my kids need to attend online classes...

Will try your method later tonight...

Ok, just manage to test out the scenario you mentioned. Tried to restart the router after switching off the printer, internet connection manage to back online(printer still in off status). Then I try to turn on and switch off the printer again, but this time I didn't restart the router, it seems like after some time, the router will back online again. But the time needed to get back online seems slightly longer than the 1st scenario...

wire line as in telephone cable or the wall socket power supply part?

DB box is it referring to ELCB there?



Could it be possible that I mess up the setting inside my router and gave permission to my printer accidentally that it sync the power on/off with both the printer & router

Yup, it is fax capable. All the while the printer is connected with a telephone line. It was meant for my wife usage, but since she quit her job, I just keep it like that all the while.

I remember with the same setup(where the telephone line is connected to the printer), I didn't encounter such issue before all the while. Only few days ago when I was unable to wirelessly print my son's homework from my laptop, I thought the printer needed a restart(I hardly restart it unless loss connection), then only I found out such situation.

Maybe will try again tomorrow and feedback here the outcome...

I'm connecting my printer via wifi only as my printer is sitting on the 1st floor while my router is located at the living hall on the ground floor...

I'm not up to the level where I can setup such advance setting to the printer yet...