Remove incorrect VPN Problems section from connectivity troubleshooting

docs-main/global-synchronizer/troubleshooting-guide/connectivity-issues.mdx

@@ -1,14 +1,12 @@
 ---
 title: "Connectivity Issues"
-description: "Diagnosing and resolving synchronizer connection failures, TLS errors, and VPN problems"
+description: "Diagnosing and resolving synchronizer connection failures and TLS errors"
 ---
 
 
 import CantonGlobalSynchronizerTroubleshootingGuideConnectivityIssuesL36 from "/snippets/canton-docs/global-synchronizer_troubleshooting-guide_connectivity-issues_L36.mdx";
 import CantonGlobalSynchronizerTroubleshootingGuideConnectivityIssuesL71 from "/snippets/canton-docs/global-synchronizer_troubleshooting-guide_connectivity-issues_L71.mdx";
 import CantonGlobalSynchronizerTroubleshootingGuideConnectivityIssuesL101 from "/snippets/canton-docs/global-synchronizer_troubleshooting-guide_connectivity-issues_L101.mdx";
-import CantonGlobalSynchronizerTroubleshootingGuideConnectivityIssuesL121 from "/snippets/canton-docs/global-synchronizer_troubleshooting-guide_connectivity-issues_L121.mdx";
-import CantonGlobalSynchronizerTroubleshootingGuideConnectivityIssuesL128 from "/snippets/canton-docs/global-synchronizer_troubleshooting-guide_connectivity-issues_L128.mdx";
 
 Connectivity failures prevent your validator from communicating with the synchronizer. The symptoms vary -- from outright connection refusals to subtle TLS handshake errors -- but the diagnostic approach is consistent.
 
@@ -96,33 +94,3 @@ If you see `PKIX path building failed`, the validator's JVM does not trust the s
 If the certificate's Subject Alternative Name (SAN) does not include the hostname you are connecting to, the handshake will fail. Verify with:
 
 <CantonGlobalSynchronizerTroubleshootingGuideConnectivityIssuesL101 />
-
-
-## VPN Problems
-
-DevNet requires a VPN connection. TestNet and MainNet validators connect over the public internet but may still use VPNs for internal infrastructure.
-
-### VPN Connection Drops
-
-If your validator periodically loses connectivity, check:
-
-- VPN client logs for reconnection events
-- Whether the VPN assigns a stable IP (some providers rotate IPs on reconnect, which can break IP-whitelisted access)
-
-### MTU Issues
-
-VPN tunnels reduce the effective MTU. If you see stalled connections that work for small requests but hang on larger payloads:
-
-<CantonGlobalSynchronizerTroubleshootingGuideConnectivityIssuesL121 />
-
-
-If pings succeed at 1400 bytes but fail at 1500, lower the MTU on the VPN interface:
-
-<CantonGlobalSynchronizerTroubleshootingGuideConnectivityIssuesL128 />
-
-
-### Split-Tunnel Configuration
-
-If your VPN routes all traffic through the tunnel, the validator may be unable to reach external services (OIDC provider, container registries). Configure split-tunnel routing so that only synchronizer traffic goes through the VPN, while other traffic uses the default gateway.
-
-Consult your VPN provider's documentation for split-tunnel setup.