Virtualhere Client crashes after mDNS_AddDNSServer errors

Hi

We have an issue, where VirtualHere Client crashes from time to time. The only information I see in the logs before the crash is lots of mDNS_AddDNSServer errors. Systemctl status output below.

We are running VirtualHere Client version 5.0.7 on Debian 8.9. Output from uname: #1 SMP Debian 3.16.43-2+deb8u3 (2017-08-15)

root@syneesrv001:~# systemctl status virtualhere.service
● virtualhere.service - VirtualHere USB Client
Loaded: loaded (/etc/systemd/system/virtualhere.service; enabled)
Active: inactive (dead) since N 2020-12-10 00:21:36 EET; 7h ago
Process: 28565 ExecStart=/usr/local/sbin/vhclientx86_64 -c /etc/vhclient.conf (code=exited, status=0/SUCCESS)
Process: 28541 ExecStartPre=/bin/sh -c logger VirtualHere settling...;sleep 1s;logger VirtualHere settled (code=exited, status=0/SUCCESS)
Main PID: 28565 (code=exited, status=0/SUCCESS)
dets 10 00:20:56 syneesrv001 [28565]: mDNS_AddDNSServer: DNS server limit of 64 reached, not adding this server
dets 10 00:20:56 syneesrv001 [28565]: mDNS_AddDNSServer: DNS server limit of 64 reached, not adding this server
dets 10 00:20:56 syneesrv001 [28565]: mDNS_AddDNSServer: DNS server limit of 64 reached, not adding this server
dets 10 00:21:03 syneesrv001 [28565]: Could not connect to xxxx:7575
dets 10 00:21:26 syneesrv001 [28565]: mDNS_AddDNSServer: DNS server limit of 64 reached, not adding this server
dets 10 00:21:26 syneesrv001 [28565]: mDNS_AddDNSServer: DNS server limit of 64 reached, not adding this server
dets 10 00:21:26 syneesrv001 [28565]: mDNS_AddDNSServer: DNS server limit of 64 reached, not adding this server
dets 10 00:21:26 syneesrv001 [28565]: mDNS_AddDNSServer: DNS server limit of 64 reached, not adding this server
dets 10 00:21:33 syneesrv001 [28565]: Could not connect to xxxx:7575
dets 10 00:21:36 syneesrv001 vhclientx86_64[28565]: Unhandled unknown exception; terminating the application.