ERG ant+ dropouts

For the last few trainings I’ve observed a lot of ERG dropouts and I don’t know what they caused are. Sometimes is dropped only cadence, power (watts) or heart rate ant+ belt.

Zwift version is 1.0.52.
Training device: Wahoo Kickr Core
ANT+ antenna: Tacx T2028

Youtube video of training ID: BF6j_IDD6yk

Host Name: 2GWCSN2
OS Name: Microsoft Windows 10 Pro
OS Version: 10.0.19042 N/A Build 19042
OS Manufacturer: Microsoft Corporation
OS Configuration: Member Workstation
OS Build Type: Multiprocessor Free
Registered Owner: ***********
Registered Organization: ***********
Product ID: 00330-51134-27233-AAOEM
Original Install Date: 10.08.2020, 12:03:37
System Boot Time: 29.04.2021, 21:57:12
System Manufacturer: Dell Inc.
System Model: Latitude 5480
System Type: x64-based PC
Processor(s): 1 Processor(s) Installed.
[01]: Intel64 Family 6 Model 142 Stepping 9 GenuineIntel ~2701 Mhz
BIOS Version: Dell Inc. 1.9.3, 08.03.2018
Windows Directory: C:\WINDOWS
System Directory: C:\WINDOWS\system32
Boot Device: \Device\HarddiskVolume1
System Locale: pl;Polski
Input Locale: pl;Polski
Time Zone: (UTC+01:00) Sarajewo, Skopie, Warszawa, Zagrzeb
Total Physical Memory: 16 266 MB
Available Physical Memory: 7 969 MB
Virtual Memory: Max Size: 24 202 MB
Virtual Memory: Available: 15 149 MB
Virtual Memory: In Use: 9 053 MB
Page File Location(s): C:\pagefile.sys
Logon Server: \M000R00ADC001
Hotfix(s): 14 Hotfix(s) Installed.
[01]: KB4601554
[02]: KB4561600
[03]: KB4562830
[04]: KB4566785
[05]: KB4570334
[06]: KB4577266
[07]: KB4577586
[08]: KB4580325
[09]: KB4586864
[10]: KB4589212
[11]: KB4593175
[12]: KB4598481
[13]: KB5001649
[14]: KB5000858
Network Card(s): 5 NIC(s) Installed.
[01]: Cisco AnyConnect Secure Mobility Client Virtual Miniport Adapter for Windows x64
Connection Name: Ethernet 2
Status: Hardware not present
[02]: Fortinet Virtual Ethernet Adapter (NDIS 6.30)
Connection Name: Ethernet 4
Status: Media disconnected
[03]: Intel(R) Dual Band Wireless-AC 8265
Connection Name: Wi-Fi 2
DHCP Enabled: Yes
DHCP Server:
IP address(es)
[02]: fe80::b486:b90a:6324:f46f
[04]: Hyper-V Virtual Ethernet Adapter
Connection Name: vEthernet (Default Switch)
DHCP Enabled: No
IP address(es)
[02]: fe80::a10f:e4cc:8609:d227
[05]: Intel(R) Ethernet Connection (4) I219-LM
Connection Name: Ethernet
Status: Media disconnected
Hyper-V Requirements: A hypervisor has been detected. Features required for Hyper-V will not be displayed.

Hi @Karol_Lipnicki_ZTPL

Welcome to the forum.

You can drop your log file into

Dropouts can be the causes of interference for electronics in the room like fans WIFI routes ect.

An usb extension cable with the dongle close to the trainer can help, also check you HR strap batteries.

1 Like

Hi @Gerrie_Delport_ODZ, I’ve putten my log file into ZwitftAlizer and then found that there was a lot of ANT+ connection fails and I don’t know how to find root cause of its.

O wow that is bad.

Do you have a Usb extension on the dongle?

See this: How to Fix ANT+ Dropouts in Zwift - Zwift Insider


I have an Ant + antenna on a USB cable. During the training I place it no more than a meter from the trainer.

my fan can interfere with my ANT signal too, try moving some things around so that the ANT dongle is on one side of the bike/room and other equipment is on the other side of the bike/room.

I have the same trainer and ANT+ antenna and I’m having similar issues too. I’m currently in the process of eliminating everything else that is wireless to see if the issue goes away. I’ll also put my log file into the log file analyser and see what comes up.