Hello, I just noticed by checking my Unifi that I have a virtual machine running on my network and that constantly changes its IP address. It started exactly the day I first connected the RTK to my network via the RJ45 cable ;-( it constantly changes its MAC address and the xx:xx in the title is the end of the MAC! Could you tell me what this practice corresponds to? And I have very few machines in RJ45 and none have been modified or added since then so it is certain on my side there is no problem! When I ping this virtual machine and I disconnect the RJ45 from the RTK it stops responding to the ping! According to my research this machine may be Chinese software!!! Could you see in your DHCP if you have the same thing as me???
I’m only seeing two devices. Hostnames are CH9121 and YARBO
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ave you read your dhcp offline connection ? this connection connect and change everytime ! or I m crazy lol 
I’m not seeing anything unusual in the recently connected devices. You’re post does sound like there’s a crypto currency miner running on something.
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My Unifi Router identifies two devices.
One it identifies as an “Intel NUC D34010WY”.
And the other as a “3CX PBX Virtual Server” (hostname Yarbo).
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I have Unifi as well on my network, DreamMachine for router and just installed Yarbo yesterday. Unifi DM named the hostname YARBO and the manufacture is Promax if that helps you out at all.
As Bryan pointed to above the dc does do multiple MAC addresses. I have a Yarbo at a tech college and their switches do not like this activity and we have to cycle the port manually to get the dc going again. I have had a video meeting with a Yarbo tech about a month ago and he said it is a known issue and that they would be fixing it, so far no fix 
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I’m sure this is a really hard one to nail down what the exact root cause is. Hopefully they were able to identify something with you and have the fix in the pipeline.
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The IT guy at the college is good with this stuff. He logged the port for a month or so to see the issue happen many times. He turned off all the security on the port but we still kept seeing loss of Halo, sometimes once a day, sometimes once a week. I just have to keep checking the app. I now have the poe turned off at the port and use the Yarbo poe injector with a wifi plug in, so I can reset the DC when this happens, no more bothering the IT guy, lol. This Yarbo runs everyday except on Saturday and works well except the issue of weak GPS when it is on the dock. I REALLY hope they figure that one out soon as I have to manually drive him off the dock every few hours.
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So strange. I hardly ever have to reset my DC’s. I do have periodic HaLow signal strength decreases but for the most part it just works. Even if HaLow signal is poor, it just fails over to cellular seamlessly for me.
I think we’ve discussed this before but my memory is terrible. How close is your dock to any structures?
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HaLow has been great, but something is happening to bring it down and cause other weird issues. I suspect most of the network issues are linked to whatever is happening. Even when it fails over to 4G Yarbo still does it’s thing for me.
@Yarbo-Forum - Resources need to shifted to solving these problems BEFORE any more new hardware. If these issues don’t get resolved, sales are going to fall off quickly no matter how many marketing dollars are thrown at it.
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I agree with you on my personal Yarbo, I think I rebooted it once since January after a firmware update, but this one at the college is probably causing issues as it is hooked to a high dollar switch, not a residential type switch.
On the dock issue, it is probably 4 feet from a building, it takes a bit to get gps after charging or resting but it does get them, the problem is the heading drop is high and will not go down till I drive it off the dock a few feet. This started around the same time as the last firmware update, before that it was good. It will mow with hardly any GPS drops, drive back to the dock and charge, but then cannot leave after it charges.
Wonder what would happen if you put a cheap router in front of the LAN connection to the POE injector? That could potentially rule out some incompatibility issues with the enterprise grade hardware. Probably something wonky with mDNS or IGMP or something like that.
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I can assure you that they are working hard on solving all these issues. It takes a lot of time to find the root causes, develop a fix, test it internally, test it through beta, and then execute the rollout. They don’t make every component themselves, so sometimes it takes a lot of coordination and collaboration with other third parties to come to a resolution. I definitely do not envy the position they are in. I sympathize with them. But, I’ve seen their determination and resolve to fix the issues and I know they will. I think that is what sets them apart from a lot of other startups and large companies. They stand behind their product and will do whatever they can (within reason) to make it right.
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I really appreciate all the messages because I see that I’m not the only one with the problem! I actually have a Unifi DM-Pro1 but with 2 internet connections (one public IP and one private) and I also activated Unifi’s subscription security which gives me a much larger list of known security problems and bad IP addresses! So yes there are 2 MAC addresses (well no it’s false) there are 3 MAC addresses 2 in the RTK and one in the robot!!! I got the info and the MAC from the Yarbo service and no it’s not named I only had the MAC!
Yes I found that a bit strange but oh well! So I freed up these 3 MAC addresses so that it could leave my network without any problem! And suddenly my GPS problem almost disappeared!!! I don’t understand why you need an unsecured network to get GPS signals when mammotion works perfectly! Even with 29 sats, the Yarbo can’t find the signal! Yarbo really needs to change the way they work on this because if we don’t have internet, our Yarbo won’t work anymore??? Anyway! I’m really going to have to find a solution to this problem because I really don’t think it’s right to put a machine in someone’s house that they can take control of at any time without our consent and do whatever they want on our internal network! Yet I have several VLANs and even then I can’t do anything because it’s connected to standard WPA Wi-Fi and not enterprise WPA, and since the Mac changes all the time, I can’t isolate it because if I turn it off at RTK, it can go through Wi-Fi, and since it needs internet!
I’m going to reread all the messages to see if I haven’t forgotten anything, but it’s great to see that I’m not the only one having problems! but I really hope I’m wrong about bitmain but I already don’t understand why hide a mac address of the HALOW! on the other hand we display the mac of the cameras lollollol ironic lol! thanks to yarbo for not having prevented the diffusion of this post and for remaining transparent!!! ps all is google translate !!! im poor on eng lol
bryan I use the poe from unifi and now from my hp and I can at any time ask it to restart by disabling the poe on the port and reactivating it and in unifi it is just to restart the port!
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bryan pour ton routeur ! No, because it will be the router that will have suspicious communications and therefore it would still be necessary to make a bridge so that it goes directly to the outside and potentially creates a security breach that may be less controllable.
Hi Greg. I completely understand your concerns about security and their capabilities to pivot into your home network. My recommendation is to create a guest or Internet of things (IOT) VLAN and only let it out to the Internet and block your internal network.
The reason Yarbo needs Internet is by default their data center streams to an NTRIP caster server on the Internet. This is so that if your rover loses HaLow signal, it will fail over to WiFi or cellular. With cellular it requires a way to get the correction data from your data center. It does this from that Yarbo NTRIP caster server on the Internet. This makes it very seamless for the end user when it switches between the 3 communications paths.
Yarbo can absolutely work in offline mode too. If you used their POE injector you can actually test this by unplugging the LAN Side of the injector. As long as your rover has HaLow, the data center can act as the NTRIP server directly to the rover. In this scenario, your app on the phone would either communicate to your rover via Bluetooth or over cellular. If your internet went down and the data center is in the same vlan as your phone then you would be able to connect to the core over HaLow as well.
By the way, I do not recommend connecting your rover to your home WiFi at all. It has been known to cause issues and isn’t necessary at all when HaLow is functioning properly. If you want some form of redundancy to communicate to the rover, toggle on cellular. It’s free.
Hope that helps clarify a few things.
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I completely agree with you! and honestly I chose their material because it really seems solid! now it is true that they must be trusted but where is the disadvantage of trusting a company that develops software for you and trusting the internet community is that the company can put what it wants because few people will control their app (if it gives their complete source code) while the community leaves full access and can check everything (not just 5 or 10 programmers!!) but I love their interface! what is certain is that I am only starting to use it and I am waiting for the pro mower! and this winter especially it is a shame that they do not allow access to their beta like I do for apple and I did for homeseer! and many others lol! ps on ios26 the app works! already a good point lol!