Forum Discussion

Sbarnet's avatar
Sbarnet
Copper Contributor
Dec 12, 2019
Solved

Consistent Thin Client Disconnection from WVD Pool

Hello we have been experiencing some random but consistent disconnects from our WVD Pool. We have roughly 10 users and have been getting different event viewer logs for when they disconnect. We have ...
  • evasse's avatar
    evasse
    Dec 20, 2019

    Sbarnet: Thank you for sharing the logs. Unfortunately there isn't enough information to debug the disconnects. I recommend to open a support case and provide activity IDs for the connections you see issues with. 

Roger1175's avatar
Roger1175
Brass Contributor
Sep 24, 2020

stefanpeters2020 thanks again for your feedback.

 

I tried getting around using a NAT by assigning the static PIP directly to the NIC of one of the WVD session hosts. Unfortunately, I'm still seeing no improvement in the disconnects.

 

At this point, I'm convinced the issue is not with Microsoft but with our the stability of our user's Internet connections. Though I do think that the WVD service does a really poor job dealing with a connection that is not 100% stable. For example, when I was testing last night after making the change to no longer using the NAT, I was connected to the WVD host and then tried downloading a large file on my local network. In the 10 minutes that the file was downloading, I was disconnected from the WVD host over 40 times and the service was unusable.

 

This also lines up with what we are seeing with it seeming to be happening to random users from day to day while other users have no issues at all. All of our users are working from home and so they all have different network setups that are not controlled by the business. We are not using a proxy server so I do not know what the "PROXY_ERR_INVALIDCA" error means and I am unable to find anything about it from Microsoft.

 

I will likely put in a ticket with Microsoft about the issue but I'm not sure anything will come of it. Thanks again for all of your help.

 

 

Marco Brouwer's avatar
Marco Brouwer
Brass Contributor
Sep 29, 2020

Roger1175 

 

Hi all,

I just did some more digging and testing in our customers environment.

 

- Connected some thin clients directly to a 4G LTE router. Same problems. By doing this, the customers normal company network / router / ISP is ruled out. Over this 4G LTE, I can RDP to somewhere else perfectly.

- Using WVDv1 / v2 makes no difference. Tried moving one WVD host to WVDv2, same trouble.

- When a user experiences disconnects, only about half of these are logged by Log Analytics, with error code "-2146233088". The other times are not logged, so it seems.

- User A works on an IGEL thin client (officially suppored by MS!) at the office, but on a Windows 10 laptop from home. He reports that from home he experiences no trouble. Maybe the IGEL client for WVD is more "sensitive" for small hickups and this causes the user to experience a disconnect?

 

This is what Log Analytics reports:

  • ckuhtz's avatar
    ckuhtz
    Former Employee
    Oct 02, 2020

    Marco Brouwer  Thank you. Can you please open a case with support so we can troubleshoot and properly root cause the issue?  Thank you!