Unable to register Windows phone 8.1 for Developer Account - windows-phone-8

This is really annoying. Microsoft needs to grow up and fix such silly issues.
I already have a developer unlocked device in which I was able to debug until now. All of sudden it started showing device is not unlocked for developer. Now when I am trying to register it is showing iPOverUsbSvc is not running. I restarted the service. Stop and start the service. Phone and system both restarted. Nothing working for me.
I tried this but nothing seems to be working

Okay finally go the solution. I needed to change the name of device from File explorer and it worked
But the error message we get of no use.
Thanks

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Rabbitmq web manager failed to login in as a administrator and error in console

I`ve created a new user and set that as an administrator but still failed to log in after times of trial. However, I find some information in console, but can not solve it after enable-disable plugins and multiple times of re-installation of rabbitmq-server.
BTW I am using CentOS 7.9.
Solved the question by changing browser from chrome to IE, edge also works.

Error communicating with the Windows Phone Dev Center. (ErrorCode:0x64)

I am trying to resolve the following error:
Error communicating with the Windows Phone Dev Center. Set the correct date and time on the phone, check your Internet connection, and try again. (ErrorCode:0x64).
I've checked our developer account and can see there are no devices unlocked so we haven't hit our limit. (We did have 3 devices previously unlocked but they have since been deactivated and removed from the account).
The date/time are correct and the device is connected to a valid Wi-Fi with Internet access.
Here is what I have done:
I have rebooted the PC (Windows 10)
I have rebooted the phone (Windows 8.1)
On the phone I have switched the date/time settings to manual and then back to automatic
I've factory restored the device to original settings
I've checked local host files for anything related to windows/Microsoft/development
I've restarted the IpOverUsbSvc service many times
There was a server side problem with the Dev Center that blocked device unlocking. It should be fixed now, so try again, though it may take some time to propagate.
In general you should contact Microsoft Dev Center Support with problems like this as it's not something anybody outside of Microsoft can help with.
I just got this.
Nothing worked until I finally connected to a Internet capable wireless network.
Hope this helps someone else.

Application Error: Application Launch was not detected for application App

When I was validation my Windows Store App I got the following error:
Application Error: Application Launch was not detected for application
App. This could be because your application failed to launch
correctly. Please consider re-running the test and avoid interacting
with the application while tests are running.
What does this mean? The app will not validate.
I thought it was a bit weird and I couldn't find anything when I googled it but people who had almost the same problem as me, though rather than launching it was failing to sleep. This was just plain odd.
I tried to launch the app from Visual Studio 2012 just to prove to myself that it did start properly and for some crazy reason it didn't work. I usually test the game on my Local Machine rather than the Simulator but now, for some reason, it was set to the Simulator and I have been having problems getting it to start lately (the simulator).
I changed it back to the local machine and ran the tests again. This time it worked.
So, if you get this error it might be time to see if your simulator works and if not, have the Local Machine set as default to run with.

WP8 Side Loading Stopped Working

Several weeks ago side loading was working on my windows phone 8 device. I had installed a valid enrollment token (.aetx file). I was able to successfully side load signed .xap files (either via downloading in IE or attaching to an e-mail). All was good.
Then I ran down the battery and left the device for dead for over a week. When I tried to run the old side loaded apps they worked. But when I tried to side load a new xap I got an error message that said something about it having been too long since the enrollment token was verified with Microsoft. I wish I'd written it down, because I can't get the error to show up again.
Now when I try to side load apps nothing happens at all. It pops up the familiar dialog that confirms I want to install the app ("Would you like to install [my app] from [company name]?"), then I click install and the dialog disappears and the app isn't installed.
When I try to install the .aetx again it pops up the dialog to install, I click install, and then nothing (same as the first time). Xap files still won't install.
Guessing that the phone needs to re-verify the enrollment token with Microsoft I tried waiting 24 hours, but that didn't help. I'm running out of ideas.
In lieu of a direct answer, could someone help me at least get an error message? Nothing shows up in the output window in Visual Studio when I try to side load while debugging an app and I'm not able to find any OS level error logs.
Did you try to install the aetx on another phone or did you try to reset your phone? You should also watch out for invalid date and time on the phone. I've run into similar problems with Lumias which keep on resetting to the 1.9.2012 7:00. The aetx was then declared invalid and was not installed.
Incidentally, it eventually started working for me again. I can't recall now how long it took, about a week I think, but I'm guessing eventually it called home and re-activated the enrollment token.

Windows Phone 8 Emulator Deployment Issue with Internet

I am facing an issue with windows 8 phone emulator.
Windows Phone emulator wasnt able to connect to Windows Phone
operating system. Phone didnt respond to connect request
This is the error that I get. When the emulator starts with internet but my application doesnot deploy. The ip that gets assigned is 192.168.137.1. Previously it worked fine,
but then suddenly it started giving this issue.
Below is the list of troubleshooting that I have performed:
169.254.xxx.xxx address set to internal emulator via dhcp, Application deployed successfully with NO internet connection
Have tried MAC address spoofing but nothing works when I use these settings.
Have changed External Virtual Switch in Sharing mode this starts the internet with ip 192.168.137.1 but application doesnot deploy
In debugger errors shown are:
Invalid pointer error
App deployment failed
Have tried Network bridging but still it doesnt work.
Created all settings manually including the internal switch and external swithch. But same issue faced when it gets 192.168.137.1 ip then internet works but application doesnt deploy.
And when it gets 169.254.xxx.xxx ip series application deploys but no internet connection.
No firewall are turned on or no antivirus is blocking any connections.
Wireless router used for network connectivity, still not successfully
Have also tried clean installation of everything but still no go.
Need help with this issue as I have been trying to get it resolved since a week.
This issue is not faced if installation is done on the same pc through a virtual machine.
What I did was :
Have allotted 4gb ram, 60gb hdd & 4 cores to the VM.
1)I installed a virtual machine with default settings.
2)Then I stopped your virtual machine (shut Windows 8 down, DO NOT suspend it).
3)At the VMWare Virtual Machine list, right click Windows 8 machine then click "Show in Finder".
4)Right click the file then click "Show package contents", then find and open with a text editor a file with the extension .vmx
5)Go till the end of the file and add this two lines (first check whether they were previously added):
hypervisor.cpuid.v0 = "FALSE"
vhv.enable = "TRUE"
6)At the VMWare Virtual Machine list, right click Windows 8, click "Preferences" then "Advanced". Choose "Intel VT-X with EPT" as "Preferred virtualization engine".
And then when I started the windows in the virtual machine it seems to be working fine without any additional setting change. However it is still not running on a physical machine
I recommend if someone is facing a similar issue then to use a Virtual Machine till this kind of issue is resolved.
Struggling with the same problem for 3 days I finally solved my issue by disabling windows firewall for "Guest or public network". I have yet to figure out what application/service to allow through so I can re-enable it.