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Asked by acurasebas
at 2024-07-21 15:57:47
ModifyPoint:0 Replies:14 POST_ID:829062USER_ID:11965
Topic:
Internet Protocols;;Windows Networking
All of a sudden we can't access a website (www.ilsco.com) from inside the network. The website works because it can be accessed from anywhere outside the network. Cannot figure out why.
-it's not our website so i don't have any control over it
- our sonicwall shows no problems in the logs.
- it was working friday, now today doesn't work and nothing's changed in the network.
- rebooted sonicwall, flushed dns, restarted dns server.
any ideas on where to look for the problem?
-it's not our website so i don't have any control over it
- our sonicwall shows no problems in the logs.
- it was working friday, now today doesn't work and nothing's changed in the network.
- rebooted sonicwall, flushed dns, restarted dns server.
any ideas on where to look for the problem?
Author: acurasebas replied at 2024-07-26 02:16:18
thanks for the input, not sure why the page started working again on its own.
Accepted Solution
Author: acurasebas replied at 2024-07-21 18:02:58
well after 12 hours of the page not working, all of a sudden it started working again. I'm wondering if our ip address is getting black listed by their servers for some reason.
Expert: Alan3285 replied at 2024-07-21 17:13:39
Hi,
1) What type of switch(es) are involved? Do they have any logging capability? If so, can you see whether the machine(s) are successfully sending their request out through the switch?
Could you remove the switch(es) from the equation entirely and temporarily connect a machine directly to the SonicWall device and see if that works?
2) What logs can you get from the SonicWall device? Can you see the requests transitioning from the LAN to WAN through the device? If so, are responses coming back from the website? Are those responses then getting sent back to the LAN?
Is the SonicWall device also your modem? You said above that you have:
If you have another device (modem or something) outside of the SonicWall and it is also a router, then you could try removing the SonicWall device from the setup, and connect a machine directly to that perimeter device and see if it works. If you don't have a router in there that is doing NAT (say) then connecting a Windows machine directly to the internet is not a good idea, so be careful and sure you know what you are doing if you are trying that!
Alan.
acurasebas - 2014-07-22 at 11:57:38 - ID: 40210425
everything works but that site, all internal communication is fine, all other websites are accessed just fine. We have to use ilsco.com daily for orders and it's the only site not working.
My guess is that it must be either your switch, the sonicwall device, or something outside your network.everything works but that site, all internal communication is fine, all other websites are accessed just fine. We have to use ilsco.com daily for orders and it's the only site not working.
1) What type of switch(es) are involved? Do they have any logging capability? If so, can you see whether the machine(s) are successfully sending their request out through the switch?
Could you remove the switch(es) from the equation entirely and temporarily connect a machine directly to the SonicWall device and see if that works?
2) What logs can you get from the SonicWall device? Can you see the requests transitioning from the LAN to WAN through the device? If so, are responses coming back from the website? Are those responses then getting sent back to the LAN?
Is the SonicWall device also your modem? You said above that you have:
internet----sonicwall-----swtich----server/workstation
Does that mean there is nothing outside the SonicWall device? If there is, what is it?If you have another device (modem or something) outside of the SonicWall and it is also a router, then you could try removing the SonicWall device from the setup, and connect a machine directly to that perimeter device and see if it works. If you don't have a router in there that is doing NAT (say) then connecting a Windows machine directly to the internet is not a good idea, so be careful and sure you know what you are doing if you are trying that!
Alan.
Expert: duncanb7 replied at 2024-07-21 17:01:09
So now it is focusing on Sonicwall and window system itself, please review my previous posts
Any Sonicwall tell you connection message or error ?
Duncan
Any Sonicwall tell you connection message or error ?
Duncan
Author: acurasebas replied at 2024-07-21 16:57:38
everything works but that site, all internal communication is fine, all other websites are accessed just fine. We have to use ilsco.com daily for orders and it's the only site not working.
Expert: duncanb7 replied at 2024-07-21 16:54:30
How about internal network is okay or not so that will help to verify the switch is okay or not
Duncan
Duncan
Author: acurasebas replied at 2024-07-21 16:52:11
it's not an issue with just one system, all servers, all workstations have the same problem. it is a windows environment.
Expert: duncanb7 replied at 2024-07-21 16:51:01
If window, how about do window recovery process to recover it to the date on that is no issue before
Duncan
Duncan
Expert: duncanb7 replied at 2024-07-21 16:47:10
How about re-install Sonicwall ? Do you have other software to download to your system recently
What computer system are you using ?
Duncan
What computer system are you using ?
Duncan
Author: acurasebas replied at 2024-07-21 16:38:54
no vlans in the network. setup is simple. internet----sonicwall-----swtich----server/workstation
website it's been working fine for months, up until friday. Nothing that we know changed over the weekend and now today we can't access the site.
turned off just about everything in the sonicwall as far as IPS, gateway AV, content filter, etc.
website it's been working fine for months, up until friday. Nothing that we know changed over the weekend and now today we can't access the site.
turned off just about everything in the sonicwall as far as IPS, gateway AV, content filter, etc.
Expert: duncanb7 replied at 2024-07-21 16:34:16
If external site is NOT accessible, probably, it is VLAN issue,your internal network is not routed to Layer-3 Vlan with assigned IP.
Take a loook this Vlan tutorial to see any trigger hint
https://www.youtube.com/watch?v=1C9UoE4TRes
I am not quite sure your network setup, please write it more in detail
Duncan
Take a loook this Vlan tutorial to see any trigger hint
https://www.youtube.com/watch?v=1C9UoE4TRes
I am not quite sure your network setup, please write it more in detail
Duncan
Expert: duncanb7 replied at 2024-07-21 16:29:54
The solution is similar but not same, try work around others setting for a while.
Duncan
Duncan
Author: acurasebas replied at 2024-07-21 16:27:26
very similar to my issue on that link, just tried the solution but did not solve the issue though. website still cannot be reached inside the network, either google chrome or IE, from servers or workstations.
Expert: duncanb7 replied at 2024-07-21 16:17:03
in this article at this site, it mentioned the author has similar issue as you and fixed it after a month by himself with changing log setting.
http://www.experts-exchange.com/Hardware/Networking_Hardware/Routers/Q_27561080.html
Hope understand your question completely.If not, please point it out
Duncan
http://www.experts-exchange.com/Hardware/Networking_Hardware/Routers/Q_27561080.html
Hope understand your question completely.If not, please point it out
Duncan
