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Unable to access one particular website
#1
Hi Team ,

There are multiple devices connected in my network (laptop, desktop, tablet, mobile) and all were able to access all the websites (which i was aware of), until one day suddenly one particular website can't be accessed from any device when it is connected to my network. The moment i walked out and connected to a network at my institution, surprisingly it works on my phone and laptop. I did nslookup no error there, got the ip, but unable to access with that ip on my web browser. Did Traceroute it was getting timed out at 5th hop and when i googled the ip where it was getting timed out was of my ISP's.
Assigned static DNS, FLUSHED DNS, powercycled the network , reset the modem - router - all in vain.
With the same network i am able to access website if i go through kproxy.com.
I had to change my ISP finally.
I am not looking for resolution now i just need to know what possible could have gone wrong , where it could have gone wrong and what else should have been done. I appreciate any insight.

#2
Sounds like you covered most all the basses. That's not right... Just out of curiosity what was the type of site you where trying to access? If the site helps you do things that ISP's don't like you doing then we would have a better understanding of why you where getting blocked.
Tim's Computer Repair (TCR) 
1503 Kings Way, Savannah, GA 31406, US
912-220-0765
https://www.TimsComputerFix.net 


#3
(09-16-2015, 01:50 PM)Timster Wrote:  Sounds like you covered most all the basses. That's not right... Just out of curiosity what was the type of site you where trying to access? If the site helps you do things that ISP's don't like you doing then we would have a better understanding of why you where getting blocked.

Thank you for replying. To put your curiosity at rest, the website is to access all the machinery tools, farming tools etc. Nothing objectionable nor offensive and when asked my friends in different city to access happens to be same ISP - Works absolutely fine.

#4
It could be a router issue. I've seen routers do some strange things when they start to let go. I had one router that would not let one certain computer connect but let all others connect just fine. Just thinking out loud Dodgy

EDIT: Although you did say the trace route went to 5th hop
Tim's Computer Repair (TCR) 
1503 Kings Way, Savannah, GA 31406, US
912-220-0765
https://www.TimsComputerFix.net 


#5
Could be a firewall issue on that device or an issue with an IP address blocked by that sites hosting company, or even a certificate issue.

Does it work with a different browser?

#6
did you have a 3 party firewall installed on your computer? what antivirus are you running?

#7
It can't be firewall and router, because we are talking about multiple devices here, which doesn't work when i am connected to my home network but when i go out and connect to any other random network it does work on my laptop and tablet.
It is extremely bizarre and i didn't get any solution from my ISP. I even went for static IP from ISP that didn't work either and it becomes so strange when i am at other's network with same ISP it works. So that give ISP an excuse to raise their hands up and modem replacement didn't help from them.
The only thing i didn't try was MAC spoofing, because i thought Address Resolution protocol (ARP) works below network layer. So there shouldn't be any association of my WAN IP and my MAC address of multiple devices.
I really have no idea what happened.
There might be some association with WAN IP and web hosting company. SO if that is the case how to rectify this any idea Guiltyspark?

#8
Step 1
  • Please open command prompt and type: ipconfig /all 
  • Please copy and paste details  of ipconfig in next post
Step 2 
  • What DNS Server you using?
  • Change DNS settings to obtain DNS Server automatically. 
  • Now try and connect? 
Step 3
  • Who is you're ISP? is this site blocked in your country?
  • Who is you're ISP? they may have blocked that site?
  • Important: Have you reset router to factory settings? if not, do so.
  • Have you made any changes in router ie DNS settings?
  • Website may of banned or blocked you IP from that site for some unknown reason.
  • Are you using any proxy settings? or have you changed settings in browser?
  • Try resetting browser to default settings.
  • Are you connecting to site via http or https try both.
  • What browser you using? try other browsers.
  • Scanned system with Malwarebytes? is system clean?
  • Can you try connecting to that site while in Safe Mode with Networking?
  • Can you try connecting to that site via a live cd? ie Puppy Linux etc etc
  • Is the site you trying to connect a secure site? 
  • Cannot access some websites in Internet Explorer
  • Why cant I view some websites
  • Have you changed your HOSTs file? maybe try resetting HOSTS file
  • How can I reset the Hosts file back to the default?
  • Have you tried a clean boot? - How to perform a clean boot in Windows
  • See if you can access the site via this site: Hidemyass 
  • Disable all Firewall and Antivirus software and try and connect.
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#9
I had this problem also now that I remember with DD wrt website was able access the site
but could not download any firmware on the website at first I thought it was DD wrt website

but I have a vpn setup after turning on my vpn connecting to a next country
I was able to download firmware

so it could be 2 things my isp don,t want me downloading firmware or
DD wrt don,t want be downloading firmware from my country

I think it's my Isp
my Isp love to have control but once I turn on my vpn happy days

you did say you can access the site through kproxy.com.

#10
Sorry for late reply i was little occupied.Before i move further i wanted to emphasise it's an issue with multiple device in same network whereas all the devices can access in different network from same ISP.
Britec as requested I'm posting the details below :

Microsoft Windows [Version 10.0.10240]
© 2015 Microsoft Corporation. All rights reserved.

C:\Users\kunal>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : DESKTOP-XXXX
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Ethernet:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe FE Family Controller
Physical Address. . . . . . . . . : 50-AF-73-6F-1D-51
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Local Area Connection* 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address. . . . . . . . . : 74-29-AF-7D-17-1B
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wi-Fi:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8723BE Wireless LAN 802.11n PCI-E NIC
Physical Address. . . . . . . . . : 74-29-AF-7D-17-1B
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::f8d5:54e5:aa72:7ffc%10(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.65(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 22 September 2015 10:00:25
Lease Expires . . . . . . . . . . : 24 September 2015 08:44:36
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 57944495
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1D-50-CE-0A-50-AF-73-6F-1D-51
DNS Servers . . . . . . . . . . . : 192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{F8DD59BE-E152-47BC-BC97-E050BAA57709}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Teredo Tunneling Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:9d38:90d7:34a8:1527:49b5:935(Preferred)
Link-local IPv6 Address . . . . . : fe80::34a8:1527:49b5:935%5(Preferred)
Default Gateway . . . . . . . . . : ::
DHCPv6 IAID . . . . . . . . . . . : 352321536
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1D-50-CE-0A-50-AF-73-6F-1D-51
NetBIOS over Tcpip. . . . . . . . : Disabled

2. I was using DNS on auto assigned. When issue arises i tried global DNS and ISP DSN forced in preferred DNS succeeding by Global DNS.

3. I did reset my modem , router even ordered static ip
My ISP was Airtel India and the website is accessible from same ISP but from other's network.
I did reset my host file.
I did verify that whether i was trying to access ssl secured website or just unsecured.
Yes and i was able to access my website through Kproxy.com

I didn't try Can you try connecting to that site via a live cd? ie Puppy Linux etc but i used vmware and used XP but to no avail.

(09-17-2015, 11:13 AM)Compton Wrote:  I had this problem also now that I remember with DD wrt website was able access the site
but could not download any firmware on the website at first I thought it was DD wrt website

but I have a vpn setup after turning on my vpn connecting to a next country  
I was able to download firmware

so it could be 2 things my isp don,t want me downloading firmware or
DD wrt don,t want be downloading firmware from my country

I think it's my Isp
my Isp love to have control but once I turn on my vpn happy days

you did say you can access the site  through kproxy.com.
Hi,
Well i certainly believe that it has to be ISP but why my network but can be accessed from others.
I never gave a thought of VPN. That could have been tried.



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