Hi one my client uses ZD1106 & Ap-7372 & 7363 now its showing link as 140 Mbps earlier it was 300 Mbps can u help me out in this case

  • 1
  • Question
  • Updated 2 years ago
zf7372 Link Speed as 140 Mbps
Photo of Praveen Kumar

Praveen Kumar

  • 2 Posts
  • 0 Reply Likes

Posted 2 years ago

  • 1
Photo of Max O'Driscoll

Max O'Driscoll, AlphaDog

  • 322 Posts
  • 77 Reply Likes
interference, distance, more clients on AP, client chose to remain connected to weaker AP rather than roam to stronger signal (they do that and it's the cleints decision), connected initial data rate unsustainable so dropped to sustainable rate...probably other reasons but that'll do for a start.

Be pleased you are connecting at 140!
A solid reliable connection is far more important than maximising throughput.

===2nd thoughts====
After a reread I might be missing your intention. Please provide more info about the speed drop, ie what device or widget is reporting it. 
Photo of Max O'Driscoll

Max O'Driscoll, AlphaDog

  • 322 Posts
  • 77 Reply Likes
Still not enough useful info.

What device is connecting to what device at what speed and where is this being reported (zd, ap, client)?

Remote possibility: Are you using mesh feature to connect AP to ZD (so no wired connection, this cuts throughput in half)?
Photo of Michael Brado

Michael Brado, Official Rep

  • 1979 Posts
  • 275 Reply Likes
90% of the time, the answer is Client SNR is directly related to Distance from the AP. 
Higher RSSI, closer to the AP, translates to highest throughput.  Try analyzing your
client link thoughput at near and far distances, and you will likely see this.
Photo of Praveen Kumar

Praveen Kumar

  • 2 Posts
  • 0 Reply Likes
Hi Thanks for your Response ....Client is seated below the Access Point its not more than 5 feet .. also only one person connected to the Ap
Photo of Monnat Systems

Monnat Systems, AlphaDog

  • 714 Posts
  • 151 Reply Likes
Hi

its happening bcos of dynamic rate selection...

DRS is up-shifting and downshifting for rate optimization and improved performance. The algorithms used for dynamic rate switching are proprietary and are defined by radio card manufacturers. Most vendors base DRS on receive signal strength indicator (RSSI) thresholds, packet error rates, and retransmissions. Because vendors implement DRS differently, you may have two different vendor client cards at the same location, while one is communicating wit the access point at 11 Mbps and the other is communicating at 2 Mbps.

there is nothing much you can do as it is something well thought by WNIC driver to run at 140 MBPS at that location ir-respective of location or how far it is from AP.