Update vpn-gateway-troubleshoot-site-to-site-disconnected-intermittently.md

updated SA limit to 200 from 100 https://supportability.visualstudio.com/AzureNetworking/_workitems/edit/72631?src=WorkItemMention&src-action=artifact_link

Author: Niyswas

articles/vpn-gateway/vpn-gateway-troubleshoot-site-to-site-disconnected-intermittently.md

@@ -46,7 +46,7 @@ Make sure that the on-premises VPN device is set to have **one VPN tunnel per su
 
 ### Step 5: Check for Security Association Limitations
 
-The virtual network gateway has limit of 100 subnet Security Association pairs. If the number of Azure virtual network subnets multiplied times by the number of local subnets is greater than 100, you might see sporadic subnets disconnecting.
+The virtual network gateway has limit of 200 subnet Security Association pairs. If the number of Azure virtual network subnets multiplied times by the number of local subnets is greater than 200, you might see sporadic subnets disconnecting.
 
 ### Step 6: Check on-premises VPN device external interface address