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tricks79's avatar
tricks79
Brass Contributor
Sep 29, 2023

RDP Client - "available bandwidth"

Hi everyone,

Does anyone have detailed information on what 'available bandwidth' actually means when looking at windows 365 rdp connection details?

Sometimes our users see above 30mbps and sometimes they see below 8mbps. Also happens to me and I seem to correlate it with poor user experience when available bandwidth is low but when checking  all expects of user's home network, all the speed tests, pings and even running rtt test tool to microsoft data center all show great connection. Me for example, have 500 down / 20 up and i can sometimes experience available bandwidth in range of 4-5mbps and might last all day. Other days I may see 38-40mbps Was hoping someone can provide details on what this metric is actually measuring and how it applies to windows 365 and if low... what would be troubleshooting steps because does not seem to be internet speeds or local bandwidth availability. Hope someone can shed light. Doc only show statements like..."network bandwidth observed during sessions with the specified CPC sample sets" . Thank you all.

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  • Thomas356's avatar
    Thomas356
    Copper Contributor
    Mar 22, 2024

    Hi tricks79 did you manage to find a solution to the problem? 
    We're having a similar issue with our users.

    They are all connected to the same landline 100/100mb and all run the same kind of tasks (It's a contanct center) but some are able to generate very high bandwidth usage.
    Any idea as how this happens?

    Thanks 

    • TimmyB17's avatar
      TimmyB17
      Copper Contributor
      Oct 10, 2024
      Hi - was there ever any follow up? I have seen those same situations and have users chasing me for answers on why its so low. I would love to know a full solution.
  • Pearl-Angeles's avatar
    Pearl-Angeles
    Icon for Community Manager rankCommunity Manager
    Nov 06, 2024

    Hi there, this question was answered in the Windows 365 AMA on 10/30/24 at 30:54. The team followed up after the AMA session with additional details: Available bandwidth is the bandwidth that the client estimates is available for RDP to use between client and server. Specifically, it uses [MS-RDPBCGR]: Client Auto-Detect Response PDU | Microsoft Learn. This number may differ from the bandwidth number that's observable in speed tests outside of the client because (a) high bandwidth applications running on the same client device are consuming bandwidth (b) other devices connected through the home network router that are consuming bandwidth.

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