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General Discussion / Research Internet connectivity issue
« on: December 11, 2021, 05:08:25 pm »
During the last two days I went to bed with Internet access and I woke up without it. My question is: How can I research what is happening? What should I look for and where? I looked into logs but I could not find anything strange.
Symptoms:
- The router is operating but devices have no Internet access
- However, devices can access machines within the local VLANs, so my computer can see data from the camera, locally
- Cannot access the router GUI by DN but I can by IP
- From the router I can ping google.com and get DN for www.google.com
- I can connect externally via VPN
- When Windows tries to fix the issue by reseting DHCP, I lost the assigned IP (DHCP not working?)
- I had to restart the router to get everything back. I found out that restarting some services a couple of times seems to work too.
Some context:
It all started when I rebooted the router after many months of uninterrupted operation and I upgraded Opnsense to the latest version:
Type opnsense
Version 21.7.6
Architecture amd64
Flavour OpenSSL
Commit acdaa7649
Mirror https://pkg.opnsense.org/FreeBSD:12:amd64/21.7
Repositories OPNsense
Updated on Wed Dec 8 13:52:49 UTC 2021
Checked on Sat Dec 11 13:29:34 UTC 2021
All packages are up to date:
Your packages are up to date.
I only see this issue, but I don't see the reason, and it seems to work fine:
os-dyndns (misconfigured) 1.27_1 173KiB OPNsense Dynamic DNS Support
WAN connection is OK:
Name Interface Protocol Priority Gateway Monitor IP RTT RTTd Loss Status Description
WAN_... (active) WAN IPv4 254 (upstream) x.x.x.x ~ ~ ~ Online Interface
From a client computer I get no DNS access:
> tracert google.com
Unable to resolve target system name google.com.
> nslookup www.google.com
DNS request timed out.
timeout was 2 seconds.
Server: UnKnown
Address: 10.1.1.1
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to UnKnown timed-out
But from the router I can ping and receive DNS responses with no problem
It seems to me that I could be a problem related to DHCP or DNS, but what should I look for, and in which GUI option, to find the source of error?
Thanks
Symptoms:
- The router is operating but devices have no Internet access
- However, devices can access machines within the local VLANs, so my computer can see data from the camera, locally
- Cannot access the router GUI by DN but I can by IP
- From the router I can ping google.com and get DN for www.google.com
- I can connect externally via VPN
- When Windows tries to fix the issue by reseting DHCP, I lost the assigned IP (DHCP not working?)
- I had to restart the router to get everything back. I found out that restarting some services a couple of times seems to work too.
Some context:
It all started when I rebooted the router after many months of uninterrupted operation and I upgraded Opnsense to the latest version:
Type opnsense
Version 21.7.6
Architecture amd64
Flavour OpenSSL
Commit acdaa7649
Mirror https://pkg.opnsense.org/FreeBSD:12:amd64/21.7
Repositories OPNsense
Updated on Wed Dec 8 13:52:49 UTC 2021
Checked on Sat Dec 11 13:29:34 UTC 2021
All packages are up to date:
Your packages are up to date.
I only see this issue, but I don't see the reason, and it seems to work fine:
os-dyndns (misconfigured) 1.27_1 173KiB OPNsense Dynamic DNS Support
WAN connection is OK:
Name Interface Protocol Priority Gateway Monitor IP RTT RTTd Loss Status Description
WAN_... (active) WAN IPv4 254 (upstream) x.x.x.x ~ ~ ~ Online Interface
From a client computer I get no DNS access:
> tracert google.com
Unable to resolve target system name google.com.
> nslookup www.google.com
DNS request timed out.
timeout was 2 seconds.
Server: UnKnown
Address: 10.1.1.1
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to UnKnown timed-out
But from the router I can ping and receive DNS responses with no problem
It seems to me that I could be a problem related to DHCP or DNS, but what should I look for, and in which GUI option, to find the source of error?
Thanks