We have a Windows 2003 Small Business server R2. Friday Oct. 4 2019, we were unable to connect to one of our clearing house sites that had been working previously with no problems. The Friday mentioned above, users were getting the following error message:
Calling the clearing house tech support, I was told the problem was not on their end & they had no problems or complaints from anyone else. I cleared the cache on one of the computers, released and renewed the IP config, but nothing worked.
I then went to the server and did an nslookup on both a known working site and the one that gave us the error and I came up with the following:
To get us working again, I went to each of the user's computers and manually entered the address of our ISP's DNS server instead of the IP address of our in-house server. Everything is working as it should. This was the only site we had a problem with - all other websites loaded correctly and we were able to access files on the server.
I also noticed that our tape backup failed twice while using new tapes. The previous 5 new tapes worked properly on the previous 5 days. The message I got from Symantec Backup Exec 12.0 was to put in Tape Number 000000016, even though these are new tapes and we have never had to use a full tape for the daily backups. I'm not sure if the 2 problems are related, but I figure I'd better post this in case there could be some correlation.
I have updated and run both Malwarebytes and Eset Endpoint Antivirus on the server and both
came up clean.
Any help would be greatly appreciated. I am the IT guy who is expected to fix all of these problems with no proper training, so please bare with me.