This section outlines some known issues.
Cisco Switch Compatibility
Energy Efficient Ethernet/Flow Control (Pause Frames) Compatibility Table
Cisco >> Vivi
Energy Efficient Ethernet on and Flow Control on
Energy Efficient Ethernet on and Flow Control off
Energy Efficient Ethernet off and Flow Control on
Energy Efficient Ethernet off and Flow Control off
1Gb & AC Adapter
1Gb & PoE Adapter *
100Mb & AC Adapter
100Mb & PoE Adapter
*This combination is included for completeness but in reality it wouldn't be used as the PoE splitters only have 100Mbps throughput.
Current Bugs with Cisco Hardware
Catalyst 2960, 3560, 3750
When using a Cisco 2960 with an incompatible configuration you will see severely degraded performance (lag and stuttering) as bandwidth throughput will be inconsistent. In some cases, you will even see constant line protocol flapping in the Cisco CLI as follows:
The root cause of this issue is that Vivi does not support Energy Efficient Ethernet that is enabled by default on these models of switches and due to a Cisco bug it is not disabled for devices running at 100Mbps that do not support it as per the standards.
It can be disabled with this command in the Cisco CLI as follows:
CLI Command: 2960X(config-if)#no power efficient-ethernet
Further information can be found at the Cisco website: https://bst.cloudapps.cisco.com/bugsearch/bug/CSCus35889
Catalyst 9300 & 3850
Multigig switches such as the 9300 & 3850 fail to auto-negotiate with Vivi resulting in no network connectivity.
Update the firmware for your Vivi Boxes to 2.2.1 or greater.
HP Audio Drivers
One of the most common support requests received by Vivi Support is the reporting of sound being in sync between the device you're presenting with and the Vivi Box.
This means that when you turn the volume up or down on your HP device, this also turns the volume up and down on the Vivi Receiver.
This issue tends to occur on HP devices only, and the underlying reason for this is that HP runs a Conexant driver that modifies sound differently for connected devices.
Usually when you modify your volume up, down or to mute, what you're actually doing is adjusting the sound via the WASAPI (Windows Audio Session API).
However, with the Conexant driver, this happens much further up the sound pipeline and therefore mutes any sound further down.
The way in which to fix this is to force the sound device to utilise WASAPI. HP recommends you do this by turning hardware acceleration on the audio device.
See their support page for instructions: https://support.hp.com/us-en/document/c05851794
In some cases, this doesn't resolve the problem, as the particular sound driver installed has malfunctioning hardware acceleration.
In this scenario HP recommends you install one of their updated drivers to solve the issue. See the following table for the relevant driver and download links:
HP EliteBook Folio 1040 G3
HP EliteBook 1030 G1
HP EliteBook 840/848/850 G3
HP ProBook 640/650 G2
HP ProBook 11 G1 EE
HP ProBook 11 G2 EE
HP EliteBook Folio G1
HP Elite x2 1012 G1
HP ProBook 430/440/446/450/470 G3
HP EliteBook 820/828 G3
Driver for 2015 models: https://downloads.vivi.io/support/2015.zip
HP ProBook x360 11 G1 EE
HP ProBook x360 11 G2 EE
HP ProBook 640/650 G3
HP EliteBook 840/848/850 G4
HP EliteBook x360 1020 G2
HP Elite x2 1012 G2
HP EliteBook x360 G2
HP ProBook 430/440/450/470 G4
HP EliteBook 820/828 G4
HP Pro x2 612 G2
Driver for 2016 models: https://downloads.vivi.io/support/2016.zip
|2017 and 2018 Models|
HP ProBook 430/440/450/470 G5
HP EliteBook x360 1040 G5
HP EliteBook x360 1030 G3
HP ProBook 640/650 G4
HP EliteBook 840/846/850 G5
HP EliteBook 840r/846r G4
HP EliteBook 840/846 G5 HC
HP Elite x2 1013 G3
HP ProBook x360 440 G1
HP EliteBook 830/836 G5
HP EliteBook 1050 G1
Driver for 2017 and 2018 models: https://downloads.vivi.io/support/2017_2018.zip