@ChristianKapplmller-1467, This needs deeper investigation. Please do provide these details to azcommunity@microsoft.com for further troubleshooting.

1. Description of the problem
   

2. SubscriptionId
   

3. Profile Name
   

4. Endpoint Name
   

5. Custom Domain hostname
   

6. Approximate time (in UTC) when the problem was first noticed

   
   
   
   
   

@ChristianKapplmller-1467, Apologies for the delay in response. I have responded back on email. Please do check.

@boldfaceal-5565 , for quick checks do make sure,

1.Make sure you have a compatible VPN device from the supported list.

2.Verify that you have an externally facing public IPv4 address for your VPN device.

3.Also, make sure that none of the subnets of your on-premises network can overlap with the virtual network subnets that you want to connect to.

@RajNair , Then the best solution would be deploying a WAF for AFD and set the IP restriction rules on WAF instead of storage account.

Here is a doc for reference

@RogerSchaffeler-2072, Apologies for the delay in response. Is this issue resolved? or are you looking for some help? Please let us know so that we can delve into it for further analysis.

@guruV-4166, Looks like there was no own proprietary from Azure but you can try using third party tools to test the page speeds.

---

Please do not forget to "Accept the answer" wherever the information provided helps you to help others in the community.

@SonNguyenHoang-9208, From the logs we see, IKE Tunnel closed for tunnelId 0x7 with status Negotiation timed out

Please do provide some details about the VPN gateway like routes based or policy based etc. to provide better insights.

Retirement notification for the benefit of community.

@DanielBendk-4957, Could you please post the screenshot of the nameservers field you are referring to? I see the nameservers under advanced management portal --> DNS without any Grey out. Please do post the SS for better insights.

@Fuku-6858, I did understand your ask, but I don't think overriding host header along with port is possible today. From the mentions above it looks like you have been using this earlier but failed now. Let me quickly check with the respective product team.

@Fuku-6858, What do you mean by lost? Are you not able to override to the right custom port? Please do elaborate the issue for better insights?

@FelixAhmetTapiaValentin-0374, Are you referring to cloud shell here? If so, have you selected the right subscription and storage account?

@TakahitoIwasa, let me quickly try with VpnGw1. VpnGw2 works fine,

@TakahitoIwasa, Apologies for the delayed response as I am OOF. Please do send us a mail azcommunity@microsoft.com with sub:"ATTN:suvasara". I will setup a call accordingly.

@MolnarMiroslav-7982, Try Setting the Right File Permissions for Local Public and Private SSH Key
The public and private files are stored under the user's home directory .ssh folder. The public and private key folder need to have the right file permission to be readable by the current user. Set this directory file permissions with the following chmod command.

chmod -R 740 ~/.ssh/