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The Problem is that when i do a skype call on wifi, it laggs and the voice is ticked.

I have got a 100/100Mbit Internet connection, with a Sophos sg-135u Firewall/Router and 5 Sophos AP 55 Access Points. Normally there are around 10-30 Notebooks connected to the wifi and like 40 Smartphones.

In the Wifi Settings of the Laptop it says something between 750Mbit to 890Mbit of speed. When i connect the Notebook via LAN it has a speed of 1Gbit, not much more but skype works fine.

Additionally i connfigured a reserved Speed Pool on the Router for VoIP Services, there i added the SIP-Server meet.lync.com. So i dont think that bandwith is the Problem here.

At a speed test i get nearby same results for wifi and lan, and i think that the hardware seems to handle this situation easily so i think that i have a mistake in my configuration that skype laggs on wifi. Does anyone know where i should start to search for a solution.

Following is the Log for the Last Skype call, the is a constant paket loss of 50% and Jitter of 12. Currently there are not more than 8 Notebooks connected and a few Smartphones. Just skype and a bit of Browsing, Bandwith never got over 1 Mbit.

Ping: **Ping**

Jitter: **Jitter**

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  • 5GHz-band clients are quite sensitive to the location and farness from the base station, some laptops don't support 5GHz Wi-Fi band. Do you test and compare the LAN and Wi-Fi speed on the same laptop from the same workplace/table?
    – mebius99
    Commented Aug 6, 2019 at 9:25
  • The Skype Problem occurs on every Notebook, all new Dell 7480 or 7490 connected with 5GHz. Currently i am testing on the same Notebook, but on different places with same Problem everywhere. To the Diagramm a constant packet loss of 40%.
    – ahdgfd
    Commented Aug 6, 2019 at 9:36

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