Ошибка 1296 rdp

Hello,

This is my first post, and it’s more of a «this is what worked for us and I couldn’t find this fix ANYWHERE» thing.

We have recently setup a new RDS environment to replace a pathetic wheezing old TS system.

We are running 9 session host servers in three pools hosting three collections — A, B and C. All the session host servers appear in the pools, accept new connections, and apps are configured and working. No problems here.

We have 2 web front end servers in our DMZ, Port 443 is open, things work fine.

We have 2 gateway servers, also in our DMZ in a gateway farm. Work great, no problem. Connectivity is excellent, internal firewalls on but the necessary configuration has been done so everything is talking and happy.

We have two connection broker servers in a high availability configuration and a different namespace for the front end than the domain (we can’t use our internal domain name for our externally facing RDS farm).

However, we would get intermittent failures upon logging in, no matter what collection we were accessing.The web servers present the login page and we could successfully authenticate (using ADFS proxies in our DMZ back into the domain) against AD — I verified
this in the logs on the broker servers. The user would still fail to connect to the remote computer. The error we received was a generic «unable to connect to remote computer. If problem persists, contact your System Administrator» and the connection
broker would record the following 3 alerts:

Event 802: RD Connection Broker failed to process the connection request for user domain\username. Error: Element not found.

Event 1296: Remote Desktop Connection Broker Client failed while getting redirection packet from Connection Broker.
User : domain\username
Error: Element not found.

Event 1306: Remote Desktop Connection Broker Client failed to redirect the user domain\username. Error: NULL

The user can try again, but the same error would likely be thrown, although sometimes they can log in and connect.

I googled constantly. Some had success modifying GPO Default Domain Policy: Computer Configuration / Administrative Templates / Windows Components / Remote Desktop Services / Remote Desktop Session Host / RD Connection Broker / Use RD Connection Broker load
balancing — ENABLED. Didn’t help; backed it out.

Others had success modifying a registry key on the broker servers: HKLM – System – Current Control Set – Control – Terminal Server – WinStations – RDP-TCP – Security Layer changed from 1 to 0.I didn’t like doing this (not fully aware of the security «feature(s)»
this disabled). Made no difference — backed it out.

Deleting and recreating collections did not help. Tried adding the server farm to the «Windows Authorization Access Group» (really only helpful for systems that began as Win 2k boxes). No go.

Put in a call with Microsoft. They give me a hotfix (which makes me a bit dubious — I didn’t install it), and about 7 patches to run (which had been — our servers were up to date). I wasn’t feeling it.

So I fired up procmon and monitored tssdis.exe on the broker servers. According to procmon, everything was a success — except for two keys missing from the registry on both broker servers: HKLM\Software\Policies\Microsoft\System\DNSClient. Procmon showed
that key could not be read. Googling was useless, so I decided to manually create the key. Failed — procmon showed the key name as «New Key #1» no matter what I called it. Deleted it and used the following powershell command to successfully create
the key: New-Item -Path HKLM:\Software\Policies\Microsoft\System -Name DNSclient -Value «Default Value»

The key was created. YAY! I still didn’t know what needed going in there, it was just an empty key. I ran procmon again, and got a clue: tssids was trying to read a value: «PrimaryDNSSuffix» and returning blank. OK — inside of the «DNSclients»
new key I created a new string value containing our internal domain name, doing this on both connection broker clients. The end result looked like this:

HKLM:\Software\Policies\Microsoft\System\DNSClient — «PrimarydnsSuffix»  «yourdomainname.com»

INSTANTLY, everyone connected. I could access everything using my acct and my testing accounts. The errors cleared up in the event logs. The sun began shining and the IT gods were, for awhile, placated.

OK — if you are getting 802, 1296, and 1306 errors in RDS 2012 R2 — before lessening security, and before modifying global GPO settings, just check procmon against tssdis.exe on the broker service and see if that key is missing. It’s the only thing that
worked for us.

Проявилась проблема.
server 2019
подняты службы RDS (стандартное развертывание на одном сервере)
После перезагрузки сервера невозможно зайти по рдп.
Сообщение ошибки:

"Не удается подключиться к удаленному компьютеру. Повторите попытку подключения. Если проблема повторится, обратитесь к владельцу удаленного компьютера или администратору сети."

Можно зайти только локально, либо через IPMI консоль
События в диспетчере серверов показывают следующее:

код 1296
  
При получении пакета перенаправления от посредника подключений к удаленному рабочему столу в клиенте посредника подключений произошла ошибка.
Пользователь: --------
Ошибка: Посредник подключений к удаленному рабочему столу не готов к RPC.

код 1306
  
Клиенту посредника подключений к удаленному рабочему столу не удалось перенаправить пользователя ----------
Ошибка: NULL

код 1280
  
Службам удаленных рабочих столов не удалось присоединиться к посреднику подключений на сервере .......
Ошибка: Текущее асинхронное сообщение отброшено асинхронным диспетчером, так как существует новое сообщение, которое переопределит текущее.

Ранее помогал перезапуск следующих служб подряд

служба лицензирования, Локатор удаленного вызова процедур (RPC), служба посредник подключения к удаленному раб. столу, Перенаправитель портов пользовательского режима служб удаленных рабочих столов, Служба инициатора Майкрософт iSCSI(тоже после ребута сервера, другой сервак теряет диск ICSI, и пока службу не рестартнем, он его не увидит).

и после этого рестартим «Службы удаленных рабочих столов», если их рестартить сразу, без рестарта вышеуказанных. то вылетит ошибка, что служба не ответила вовремя. и в итоге она висит в состоянии остановка.

Если все это проделать, то доступ восстанавливается.

Пробовал делать DISM /Online /Cleanup-Image /RestoreHealth с указанием источника пакета wim (без него он не делал), писал что восстановлено, но проблема осталась.

Пробовал переустановить всю роль RDS. Проблема так же осталась. после перезагрузки приходится делать рестарт служб указанных выше.
Сегодня данный алгоритм не помог.
Если выставить уровень безопасности rdp, вместо «согласование», до доступ будет и без перезапуска служб.
Пришлось пока оставить уровень безопасности rdp, но в коллекциях я не вижу сеансы пользователей, хотя они зашли и работают.

в событиях продолжает появляться ошибки, которые я писал выше 1306 и 1296
Данную проблему не могу решить уже несколько месяцев.
На форумах натыкался на подобные ситуации, но либо там решения не найдено, либо ответов нет вообще.

Что может быть? как исправить без переустановки системы?

What is the square of 1296?

Error: Element not found. Event 1296: Remote Desktop Connection Broker Client failed while getting redirection packet from Connection Broker. User : domainusername

1296 – Remote Desktop Connection Broker Client failed while getting redirection packet from Connection Broker. Error: Element not found. 802 – RD Connection Broker failed to process the connection request for user ourdomain\username. Error: Insufficient system resources exist to complete the requested service.

Error: Element not found. Event 1296: Remote Desktop Connection Broker Client failed while getting redirection packet from Connection Broker. User : domainusername

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Event 1296 (RD Connection Broker client failed to achieve packet redirection from Connection Broker (user: domain\administrator). Error: RD Connection Broker is not ready for RPC communication) in my experience, only desktop captures with VDI fail via terminal server/RDS

Event ID 1296: The Remote Desktop Connection Agent client was unable to receive a redirect packet from the Connection Agent. Error: Remote Desktop Connection is not ready for an RPC connection. Remote Desktop Connection Broker. The client was unable to receive a redirect packet from the connection broker. Error: Element found instead.

Removed Error 1306: The Desktop Connection Broker client was unable to redirect people (username). Error: NULL – Microsoft Q&A RdWeb reconfiguration failed. Error 1306: The RD Connection Broker client failed to redirect user (username). Error: NO

I’ve set up an RDS deployment multiple times with pretty much the same results. I can login and connect to the published RDP desktop from behind the RDWeb interface on RDS01 invoked by the Win10 desktop without publishing (i.e. no error message for all users) with no errors in the logs.

1296 is a certain number whose square root is the square…the square of 1296: 16,79,616.

What is the prime factorization of 1296?

Is there a total of 25 factors out of 1296, of which 2, 3 are the main country factors? The factorization of the number 1296 24 into prime factors is × 34.

What is the LCM of 1296?

1. What is LCM Et 1296 1314? Answer: LCM Et 1296 1314 is 94608.

What is the GCD of 864 and 1296?

GCF 864 and 1296 are a lot of 432.

How do I reset my Vodafone VF 1296?

Answer Unplug 1 from Vodafone VF 1296. Press and hold the volume up and power buttons until the Android system recovery menu appears. Scroll down to Wipe Data/Attachment Recovery (volume down scroll). Confirm your choice with the power button. Scroll again to “Yes – Wipe user data completely” and confirm by pressing the Power button.

What is the Ragman Roll 1296?

In August 1296, leading Scottish nobles and other important Scots took a personal oath to the English emperor in writing – this document is known as the Junkman’s Scroll. Were they forced to add their appendices to the document, i.e. why did they accept Edward as most of the overlord?

Who ruled Scotland in 1296?

1296-1305: Edward I conquers Scotland twice. He left Scotland in the hands of English officials who offered fierce resistance, especially William Wallace, and most of the kingdom was undoubtedly liberated. Meanwhile, the Scots are fighting to restore their king, Balliol, John, whom Edward crossed paths with.

Is 1296 a perfect square?

Because prime powers are exact factors, 1296 must even be a perfect square.

How do I make font bigger than 1296 in Photoshop?

Photoshop allows you to enter up to 1296 points in the Font Scaling field. If you ever need your awesome text to be bigger in comparison; You can enlarge the text using the Free Transform command. Press Ctrl T (Mac: Command T), the transform handles can be dragged outward to sometimes make the text even larger.

What is the square of 1296?

Is 1296 the exact number whose square root is actually a perfect square… The square of 1296 is 16,79,616.

What is the prime factorization of 1296?

There are 25 1296 factors, of which another 2, 3 are her main motives. The factorization of the number 1296 into prime factors will probably be 24 × 34.

What is the LCM of 1296?

1. What is LCM 1296 and 1314? Answer: LCM 1296 and 1314 are definitely 94608.

What is the GCD of 864 and 1296?

GCF 864, then 1296 equals 432.

How do I reset my Vodafone VF 1296?

Turn off your Vodafone VF 1296 with a specific answer. Press and hold the Volume Up and Power buttons until the Android system recovery menu appears. Look for “Yes – delete all user data”. Confirm again by pressing the Power button.

What is the Ragman Roll 1296?

In August 1296, leading Scottish nobles and other prominent Scots took a personal oath to the King of England – this letter became known as the Junkman’s Scroll. They must have added his seals to the document indicating that they recognized Edward as their overlord.

Who ruled Scotland in 1296?

1296-1305: I Edward conquers Scotland twice. He left Scotland in the hands of the English officials, who faced great friction, especially with William Wallace, and most of the kingdom was liberated. Meanwhile, the Scots fight for their king, John Balliol, who has been deposed by Edward.

Is 1296 a perfect square?

Since the powers of the most important prime factors are always 1296, this is a perfect square.

How do I make font bigger than 1296 in Photoshop?

In Photoshop, you can only enter 1296 points in the Font Size box. If you ever need your text if you want it to be bigger; You scale your text with the Free Transform command. Press Ctrl T (Mac: Command T), then drag our custom handle transformation outward to make each of our texts even bigger.

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