They have a intranet network there so they can monitor what you are doing on your work computer. But if I connect to the guest WiFi from my phone can they still see it ?
lol about every business uses "guest" as a free option anyone in the lobby can use it etc.Essentially well technically yes IF they implant a monitor software which I would assume would be extremes and there would be a log of www./websites and the visited websites perhaps xxx adult websites can send a lot of uneccesary spam and viruses to there main frame and they will start to have security concerns this happened to me when I was using my brothers router in our apartment lol.Anyway this is all hypothetical to extremes talk I highly doubt they give a rats about this for the most part its unknown.If you want to do private browsing I suggest using your phone and putting it on satellite mode like checking your bank account info etc everything else is careless.
I‘d like to inroduce 5 best network traffic monitoring tools to you.
Wireshark has always been one of the top monitors available. Wireshark is a cross-platform network monitor that does deep inspections of hundreds of protocols. It does live capture and capture save, which can be viewed in a few different modes. Wireshark also does VoIP analysis and can read/write many capture formats (tcpdump, Pcap NG, Microsoft Network Monitor, Cisco Secure IDS iplog, and many more).
Angry IP Scanner
Angry IP Scanner is one of the easiest to use of all the network traffic monitoring tools. It's interface is super easy to use and is a powerful little tool. One nice thing about Angry IP Scanner is that it is cross platform and doesn't require installation, so you can use it as a portable monitor. It can get NetBIOS information, favorite IP address range, Web server detection, customizable openers, and much more.
Colasoft Capsa Free
This is what I'm using now. If you're an administrator for a Windows based network and are used to more Windows-like tools, Capsa Free might be the best tool for you. This software comes in both a free and paid form. The free version should be enough for most people. It provides an easy-to-use dashboard you can use to create various types of captures. The free version also offers plenty of alarm configurations so you can be alerted when something occurs. It can capture more than 400 network protocols, so you won't be missing out on anything with this free tool.
Zenmap is a graphical front end to the cross-platform Nmap tool. Nmap can scan huge networks, is free, is portable, and has great readme docs. It's one of the most powerful IP traffic monitors. However, due to this, it has quite the steap learning curve. Zenmap takes Nmap and makes it more accessible to users who prefer to avoid the command line. That does not mean Zenmap is the easiest of the lot. You still need to use some commands though which contributes to its tougher to use nature.
If you are a Linux user, then EtherApe is probably for you. It is a linux only tool that offers an easy-to-use mapping of IP traffic on your network. It does this in real time and gives you a clear picture of the overall look of your network traffic. You can create filters to make reading the map easier. EtherApe will display both the node and link color with the most-used protocol so it's easier to take a quick glance, even on a busy network.
At this point, hopefully, you are all ready to monitor your network traffic for any problems.
Of course they can. They're responsible for the information that goes through their router/server.
They can see anything going through the guest internet router so yes.