This post is a little bit of a hail mary since I'm really running out of ideas.
I have a use-case where I configure Google Chrome to use per App VPN. Our installation is on prem. Linux Servers, not UAG yet.
Suddenly, a few weeks ago, Tunnel App began throwing ' DNS resolution failed' errors. Looking at the Log we see that it tries to resolve our Tunnel Relay Server by using the public Google IPv6 DNS Servers (2001:4860:4860::8888 and 2001:4860:4860::8844). Eventually it tries our IPv4 DNS Servers and can then connect successfully. We don't use IPv6 in our Environment.
- Our configuration has only our IPv4 DNS Servers set to use. And it's set to use IPv4 only.
- It's not the app version. There are different versions on the devices and they all show the same error.
- There was no change in the configuration on the servers.
- There was no OS Update on the devices (Samsung S6 and S7)
vmWare Support is at it for several days now, but up until now nothing helped.
Any thoughts / ideas from the community?
Hi Jeoffrey
we have exactly the same problem. We have also an open ticket with VMware Support and they are recommending us thing like restaritng the affected devices (also Samsng Devices) deinstall and push VPN profile again or testing our FQDN with https://www.sslshopper.com/ssl-checker.html?.
We have already try to apply these solutions but they are not definitive ones. Maybe it works for some ours or days but the ' DNS resolution failed' error appears again.
We are thinking of activating the ' Always On VPN' check in the VPN Profile to chek if once the name is correctly resolved and the VPN established it remains up. We know this is battery consuming but we have no better ideas at the moment Have you already found a solution or a workarround for this?
thank you