i could login to my my DVR page for only 2 days and after that try as i might i cannot, initially my friend from another desktop could also login to check if it worked, but no more

any help , tips would be extremely appreciable

Your hostnames currently map to IP address 182.68.190.148 and it was updated about 5 hours ago. Please let us know this is not the correct IP address.

Could you please also let us know what hostname/port you are using to access your DVR page?

My ip is right, keep updating it everyday,

I used to type in IE:
http://markx.dynu.com:88
to get to login page

but now I only get this

Make sure the web address https://markx.dynu.com:88 is correct.
Look for the page with your search engine.
Refresh the page in a few minutes.
Fix connection button
Where results show
“your computer appears to be correctly configured, but the device or resource (markx.dynu.com) is not responding”
Windows can't communicate with the device or resource (markx.dynu.com). The computer or service you are trying to reach might be temporarily unavailable.
Diagnostics Information (Network Adapter)
Details about network adapter diagnosis:

Network adapter Local Area Connection driver information:

Description . . . . . . . . . . : Intel(R) 82578DC Gigabit Network Connection
Manufacturer . . . . . . . . . : Intel
Provider . . . . . . . . . . . : Intel
Version . . . . . . . . . . . : 11.5.10.0
Inf File Name . . . . . . . . . : C:\Windows\INF\oem8.inf
Inf File Date . . . . . . . . . : Thursday, December 10, 2009 1:45:14 AM
Section Name . . . . . . . . . : E10F0.6.1.1
Hardware ID . . . . . . . . . . : pci\ven_8086&dev_10f0
Instance Status Flags . . . . . : 0x180200a
Device Manager Status Code . . : 0
IfType . . . . . . . . . . . . : 6
Physical Media Type . . . . . . : 14

Informational
Network Diagnostics Log
File Name:
95A9EC58-E603-4E43-84DC-28D994A6F5C3.Diagnose.0.etl

Informational
Other Networking Configuration and Logs
File Name:
NetworkConfiguration.cab

We were unable to reach your IP address on port 88. Either port 88 is not open in your router or firewall or your ISP is blocking port 88. You may use this port check tool https://www.dynu.com/NetworkTools/PortCheck to check it.

And if the isp is blocking the port what alternative do I have please

You may try setting up an alternate port in your DVR, like 81, 8080 or any other port that is not already used. Please make sure that you setup port forwarding in the router and open the firewall for that port.

Tomorrow ill be at the DVR location and check for open ports ,,,
Just incase these ports are closed too then what are my alternatives

Unfortunately, we have no other solutions to this issue. But it's unlikely that the ISP will block all ports.