Hi
We have a VM with the following DNS:
erpone-jsl.cloudapp.net
Frequently the Default Website on this VM becomes inaccessible with the error message 'this web page can not be displayed.' However this happens only for those users who are using a particular internet service provider in the Western part of India.
If this particular ISP resets its server, the site becomes accessible.
OR if we restart this particular VM, the site becomes accessible.
But the problem recurs after a few hours or few days.
We noticed that the issue recurs when Windows updates itself on the VM - but we are not sure of this, yet.
The IP pool from where this problem occurs is 116.199.168.0 to116.199.168.21
This ISP is telling us that their IP is being blocked by Azure VM Firewall but we have not blocked or restricted any IP from our VM or IIS.
Can Microsoft technical help throw some light on this strange phenomenon-
- page requests coming from only this range of IP is unable to access the website
- but it resolves temporarily when either the VM is restarted or the ISP's Server is restarted.
Thanks.
Esh