Connect to Hololens via WLAN - wifi

I am trying to connect to my Hololens 2 with a web browser. I can see the IP address of the Hololens in my router interface, or when I ask "What is my IP address?" the Hololens comes back with the same one (192.168.178.70). But when I enter that in a web browser, it doesn't connect. I have played around with a lot of options now, but I can't get it to work. I also saw there is a local area connection 1 and 2 ("View hardware and connection properties"), but they are "Not operational". What do I do with those?

For some reason, the device portal button in the developers section was still turned off. After turning it on, I could connect. I am pretty sure that I had turned it on before. Does it turn off automatically under certain circumstances?

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I am attempting to connect my Android blu130 to the "existing" wifi signal with zero success. Help, anyone?

I currently reside in my parent's guest house and I wish to connect my Android blu130 to an existing wifi connection in the "main house."
My ostensible purpose is to be able to listen to music.
My trouble seems to be that I cannot "connect with the wifi in any sense of the word.
I have dutifully tried to utilize the password for said wifi however I keep receiving the (or perhaps "a") message that the password is merely "saved."
Does anyone have any suggestions at all?
Yes, I am "still" a very neophyte "techie" (at least partly, if that) ay fifty-six years of age.
Thank you for reading.

Peer to Peer Communication without Server in iPhone

Is there any way to communicate between two devices or application with Browser of other devices without having Server in the middle?
If I explain, actually I want to share data between iPhone application and Browser of Desktop, I tried HTTPServer, & played with WebSocket too, but in these case this server plays an important role in between. So If somehow I exchange data between two peers like IP Address, Port number, Then Is it possible to communicate between those two devices using Wi-fi channel without having Server in Middle?
The Way, Right now I have implemented.
The way, I am looking for.
I recently came across http://www.freedomjs.org/ which is suppose to provide p2p functionality in the browser.

Remain connected to wifi network that has a captive portal

There's a wireless network I'm connecting to using my iOS device. In order to access the internet, a captive portal page is displayed prompting for a username and password. I would like my device to ignore that page and remain connected to the wireless lan. I don't mind if I can't get on to the internet - I just want to connect to another device on the wifi network. I can do this on other devices (android, laptops etc), it's just iOS devices that seem to enforce a "use captive portal or be disconnected" policy.
So, is there a way for my iOS device to remain connected to a wifi lan that has a captive portal?
This is a well-known problem with iOS. Apple assumes, incorrectly in my view, that any iOS Wi-Fi connected device must access the Internet and must be able to reach Apple's servers (of which there are dozens, only one of which is apple.com).
The device chooses a server apparently randomly from a list and attempts to load a specific HTML file in a random file path from the chosen server.
If the device is connected to the Wi-Fi access point but can't reach Apple, iOS assumes that the user has not logged into the access point and thus must be shown the captive portal login page.
This has caused grief to developers who want the user device only to access web resources on the local network, where no Internet access is provided or needed; and when the access point is open with no login required. The captive portal page just confuses the user.
The solution is to spoof the Apple servers. The only way I know of is to configure a web server to note certain nonrandom content in the HTTP attempts from the user device, and to supply the file the device is looking for. This is how the LibraryBox and PirateBox do it. Check LibraryBox.us.

How apple devices recognise that an open wifi requires credentials

Sorry for the title, but I don't fully know how to ask this questions, and I do think it's related to programming.
If you have an apple mobile device, and you walk into a place that has an open wifi (such as many on the coffee chains or airports), and you try to use the Internet, a screen appears asking for the credentials to use the Internet. This screen is not in safari, but ios recognises that it needs a password to access the internet and displays this screen. In the UK, BT open zone does this.
I'm wondering how the apple device recognise this. Is it a standard? (I haven't seen this on android devices). I've tried googling this, but I couldn't find anything (probably because I don't fully know what to search for)
Just in case, I'm not talking about a secure wifi, that requires a password.
I don't know about Apple, but Windows 8 apparently tries to connect to one of Microsoft's web servers and verifies if this works.

Examining TCP traffic from an iOS device

Is there an app or clever way to check TCP:IPv4 traffic for a host:port on iOS devices? Users will be connecting to a device with an iOS app, and if there is an existing way to sniff or otherwise log TCP (and any IP traffic) on an iPad that would be super useful. We could eventually add this into the app, but it seems like there has got to be a nice app for inspecting a network... e.g. some of the functionality of wireshark, socat, and nmap. I don't seem to be able to use the right search terms in the app store and I'm also wondering if there is a way to do this in the Safari browser?
I ended up using iTelnet and turning off all the login scripts. That will connect to any ip:port with TCP.

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