0

My connection has been dropping out fairly regularly so I wrote a scheduled task yesterday to ping google's DNS server every 5 minutes and record the result, so I have a note of when it's happening in case we need to talk to the ISP about it. However, after a few hours, every ping started failing.

What could be causing this, and is it likely to be something out of my control e.g. a fault on the ISP's end?

Some details:

  • All computers on the network have this problem now
  • I can ping within the network, just not anything outside it
  • I've tried restarting/reconnecting the computers and the router to no effect
  • Are other connections also failing from inside to outside? Can you resolve DNS using Google's dns nslookup google.com 8.8.8.8? – prateek61 Jan 5 '18 at 18:49
  • 1
    You must talk with ISP. I've seen exactly same problem & ISP solved that. Try to use tracert to trace any IP address (e.g. Google.com) and find the faulty hop. – Biswapriyo Jan 5 '18 at 19:06
  • Is there a specific error that is occuring? – multithr3at3d Jan 5 '18 at 20:15
  • It's fixed itself now. I suppose it must have been the ISP. – Tharwen Jan 5 '18 at 21:12
0

If everything is stable and works within you network 100% when the issue occurs, ISP seems the way to go, however to rule out further if possible:

  • Have a wireshark capture running overnight to see what is catched when ping fails.
  • Try pinging a different IP.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.