Passive optical networks are often referred to as the “ last mile” between an Internet service provider (ISP) and its customers. Its architecture implements a point-to-multipoint topology, in which a single optical fiber serves multiple endpoints by using unpowered ( passive) fiber optic splitters to divide the fiber bandwidth among multiple access points. Please follow the below-given steps as mentioned to resolve the issue.Ī passive optical network ( PON) is a fiber-optic telecommunications technology for delivering broadband network access to end-customers.After searching for half an hour finally found a solution that actually works and would really happy to share the solution with you people. So, my techie mind started searching for solutions. Once the router received I found my self in the same situation faced by the other users who bought this router.Despite bad reviews, I have decided to purchase the “ Netgear Nighthawk(R) X4S R7800″ router because of Netgear’s reputation and great history of making excellent networking devices.Netgear Nighthawk Router Dropping Internet Connection And this is still one method to narrow it down.In this segment, we are going to show you how to solve the “ Netgear Nighthawk router Dropping Internet Connection“ If there is a config error, no matter how you swap the switches, you'll always have that issue between #1 and #2. Worse case, replace #1 with another brand and the problem will probably go away completely.īut this is all assuming there are no configuration errors. Luckily, they're just dumb switches and these are cheap. And debugging these is just about narrowing it down and trying something different that causes it not to happen, if possible. However, bugs do exist that in certain very, very, very rare configuration situations may rear their head. The root cause behind something like this is very, very, very, very (notice all the verys) difficult to find since you're dealing with dumb devices that should work without issues for years and also not interact in any way with the packets they are handling. If you no longer have any problems, then all may be good. Then I would move #2 to where #1 is and move #3 to #2. If #3 end up having the same issue as #1 and #2, that conclusively clears #2. I would take #1 and put it in the position of #3 and see what happens. There's a really easy way to check this-swap switches since they're all the same and all unmanaged dumb ones. I would appreciate any advice though and possible next steps. What could cause this issue and what should I do to troubleshoot it? Would adding a managed switch be beneficial to pinpoint and/or resolve any problems? I would prefer not to disconnect the NAS, as I am using it and it could take several days or longer before I know whether disconnecting it has made any difference. ![]() I then re-connected Switch #2 and those devices came back up as well. Upon doing that, all devices on Switch #1 and Switch #3 regained their network connection. ![]() ![]() Then, I disconnected cable that connects Switch #1 and Switch #2. I then disconnected my Blu-ray player, but that didn't work either. The last time my devices lost connection (overnight last night), I started troubleshooting by pulling the ethernet plug on the Synology NAS, but none of my devices regained their connection. Prior to adding that NAS a few weeks ago, I had never experienced this issue. The one new component in my network is the Synology NAS, connected to Switch #2. It may just be a side effect of losing its network connection. ![]() I am including that information in case it is somehow relevant to what is happening here. I have also noticed that, along with losing network connections, my Blu-ray player on Switch #2 locks up when this happens and has to be rebooted. The devices connected directly to my router still function properly and are not impacted. That includes everything connected to Switch #1, Switch #2, and Switch #3. When this problem occurs, every device connected to and downstream of Switch #1 is losing its connection to my network. The switches on my network are all ZyXEL GS108Bv2 unmanaged switches. I included a picture below of my approximate network setup. I could go several days without problems and then have it happen twice within a few hours. I haven't been able to reproduce or find any patterns in when this occurs. Recently, I have been experiencing an occasional problem where all devices connected to my switches by ethernet are becoming disconnected from my network.
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