I'm a web developer (10 yrs), and am tech savy, but don't know a lot about networking, so please forgive my ignorance. I work from home, so I'm always on my company VPN.
Over the last several weeks I've the following intermittent connection issues while on VPN for my work using the Big-IP Edge Client on a macbook pro.
1) For a week or two, I'd get intermittent connectivity drops. My VPN client would show that Inbound Traffic had 0kb/s throughput, but my Outbound traffic was normal at ~580kb/s. This would happen throughout the day at random times, but would usually last 30-60 seconds (very annoying for video conference calls).
My assumption was that inbound only packet loss would mean that VPN was the culprit. I called my help desk at work, and they claimed it was my ISP. I tried tethering to my phone (during one of the outage times, and it appeared to resolve the issue).
2) This last week I'm getting a lot of sporadic connectivity drops across both Inbound and Outbound traffic on VPN. The first issue hasn't shown up in several weeks. These drops are shorter (5-10) seconds, but very disruptive when I'm on a video call with my team.
My questions 1) What's the best way to troubleshoot these issues, and to see if it's a VPN or a ISP issue? Wireshark? Little snitch? Is there a way to test, or is it obvious? Is there a way to log packet loss on a given day? 2) Any recommendations for how to fix this? 3) I've been considering springing for Comcast Business internet since they have SLAs for connectivity. Any suggestions or experience on this front?
PS: unrelated note. I was downloading something on steam, and noticed that VPN was saying 85MB/s throughput, but steam was saying 10.3MB/s throughput. I used iStat to verify that nothing else was taking up bandwidth, and iStat confirmed 10.3MB/s throughput. What's going on there?