I see strange IP addresses in "my connections" tab on router

[the_test]

Guys, I've bought some S9j's recently. They are working fine, but I've noticed one thing. One of the machines has too many connections beside the pool ip address. It connects to the following addresses: 217.146.8.70 and 37.252.254.172.
Is that OK? What should I do?

[PassThePopcorn]

I've never heard of RIPE / RIPE Coordination center. My suggestion is to first block those IP's on your firewall. Then factory reset the miners by flashing the NAND with an SD card.

https://support.bitmain.com/hc/en-us/articles/360019493654-S9-series-S9-S9i-S9j-S9-Hydro-Control-Board-Program-Recovery

[the_test]

Thanks! Also would you block everything except pool ip or leave some other address allowed?

[PassThePopcorn]

I would just block what shouldn't be there.

[BitMaxz]

It looks like someone monitor your miner or your PC check this detailed IP location and host name below.

Details of 37.252.254.172

IP Address : 37.252.254.172

Location   : Russian Federation (95% accuracy)

Host Name  : RU-MOW-ANX-R009.teamviewer.com

Another one is this

Details of 217.146.8.70

IP Address : 217.146.8.70

Location   : Serbia (95% accuracy)

Host Name  : RS-BEG-ANX-R003.teamviewer.com

Do you have installed teamviewer in one of your PC while you scanning these IPs?

Try to remove it and scan it again let's see if it will remove this 2 IPs.

[NotFuzzyWarm]

@OP, is this a new miner directly bought from Bitmain or was it bought used (and from whom)?
If bought used then this is a prime example why it must be said to ALWAYS reset/reflash ANY used miner because the the world is full of assholes looking to steal from anyone they can...

[the_test]

@OP, is this a new miner directly bought from Bitmain or was it bought used (and from who)?
If bought used then this is a prime example why it must be said to ALWAYS reset/reflash ANY used miner because the the world is full of assholes looking to steal from anyone they can...

It was sold like it was new. This one was the only different both visually (different fan on the back) and batch number.
I will flash it. So far it's working as it is supposed to.

[BitMaxz]

It was sold like it was new. This one was the only different both visually (different fan on the back) and batch number.
I will flash it. So far it's working as it is supposed to.

Beware on 2019 firmware just want to let you know that it may disable your SSH access if you flash it with 2019 firmware so make sure to flash it lower than 2019 firmware.

[Artemis3]

Beware on 2019 firmware just want to let you know that it may disable your SSH access if you flash it with 2019 firmware so make sure to flash it lower than 2019 firmware.

This is not a "may"; it is widely confirmed. Only use firmware up to 2018, such as December 2018 or earlier.

Or switch to Braiins OS, the open source firmware replacement. you won't regret it.