How to troubleshoot intermittent, slow speeds over the internet?
by road hazard from LinuxQuestions.org on (#6MFHG)
Server A is Debian 12 and is located at my house directly plugged into an ASUS AX86U router.
Server B is Debian 12 and is located at my brother's directly plugged into an ASUS GT6 router.
I have AT&T 1 gig symmetrical and he has Comcast 1.2 down/35 up.
I recently moved my backup server to my brothers house and -sometimes- when the backup runs, we get about 45-50MB/s but MOST of the time, it's about 3MB/s. In a perfect world, we should be able to get about 90-95MB/s (maxing out my upload speed) but the internet being the internet and peering agreements sometimes being garbage, I was hoping that the 45-50MB/s would be consistent but it's not.
Even before I moved the server to his place, FTP and iperf testing would (on a great day) max out around 50MB/s but most of the time, 3MB/s.... 5MB/s..... just crummy speeds.
Since we're both residential customers, I know that trying to get AT&T or Comcast to solve this problem would be pointless but what testing can I do to 100% rule out anything within our control is causing these totally random speed fluctuations?
Server B is Debian 12 and is located at my brother's directly plugged into an ASUS GT6 router.
I have AT&T 1 gig symmetrical and he has Comcast 1.2 down/35 up.
I recently moved my backup server to my brothers house and -sometimes- when the backup runs, we get about 45-50MB/s but MOST of the time, it's about 3MB/s. In a perfect world, we should be able to get about 90-95MB/s (maxing out my upload speed) but the internet being the internet and peering agreements sometimes being garbage, I was hoping that the 45-50MB/s would be consistent but it's not.
Even before I moved the server to his place, FTP and iperf testing would (on a great day) max out around 50MB/s but most of the time, 3MB/s.... 5MB/s..... just crummy speeds.
Since we're both residential customers, I know that trying to get AT&T or Comcast to solve this problem would be pointless but what testing can I do to 100% rule out anything within our control is causing these totally random speed fluctuations?