Issue
When you run Get-NetIPInterface in PowerShell, compare the InterfaceMetric of your physical adapter (Ethernet / Wi-Fi) with the Timus adapter.
If your physical adapter's metric is lower than the Timus adapter (for example, your adapter = 1 and Timus(connect) = 5), Windows will prefer the physical adapter for routing. As a result, DNS servers behind the IPsec tunnel and/or local DNS servers may not resolve correctly. This is expected Windows behavior — the interface with the lowest metric wins.
Example
ifIndex InterfaceAlias InterfaceMetric ------- -------------- --------------- 12 Ethernet 1 27 connect 5
Resolution
Reset the physical adapter to use an automatic metric so Windows can rebalance priorities:
- Open Control Panel → Network and Internet → Network and Sharing Center.
- Click on your active adapter (Ethernet or Wi-Fi).
- Click Properties.
- Select Internet Protocol Version 4 (TCP/IPv4) and click Properties.
- On the General tab, click Advanced….
- On the IP Settings tab, check Automatic metric.
- Click OK on all open windows.
You don’t need to disconnect or reconnect to Timus. You can check whether Timus now has a lower metric, and if it does, it should start working immediately.
Get-NetIPInterface nslookup <internal-hostname-or-domains>
Updated
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