This is conflicting answers

[Kweeb]

If your fiber internet is slower at night, it's most likely due to network congestion.

Do I share my fiber bandwidth with with neighbors?

No, when you have a fiber internet connection, you typically do not share bandwidth with your neighbors; your connection is dedicated to your household, meaning your internet speed shouldn't be impacted by their usage because each user gets their own dedicated fiber line


How could there being at work congestion if it's directly to my house

[A&A]

And what about the infrastructure world wise, continent wise, country wise, state wise, city wise, etc.?
You have your own cable from your home connected to the ISP network terminal or whatever it is called, but the fiber is shared by all.

And the server's bandwidth limit by the ISP or their own ser limit or set priority affect this too.

Either way, ISPs are selling more bandwidth than they can provide, much like water and electricity providers. The only difference is that they use subscriptions (which means money) and when they know how much bandwidth an average household uses, which is surprisingly low, and today they even try to sell 10Gbps internet (I find it outrageous), whereas an average consumer should be perfectly fine with 100Mbps or more correctly said

https://en.m.wikipedia.org/wiki/Marginal_utility

it will do almost the same stuff, but for way cheaper and it will be more cost-efficient.

[Viking2121]

Yeah you have your own dedicated line from the node, but the ISP serves to a node, then splits to other houses, or businesses including yours, if the lines serving that node is capable of say for example 40gbps max and you got another users pulling more than 40gbps, you will see slow downs due to congestion.

Thats just simple way of thinking about it, you will have the kind of bottleneck in pretty much any kind of connection type even cellular, some more prone to others due to to various reasons.

[Kweeb]

Viking2121 lähetti viestin:

Yeah you have your own dedicated line from the node, but the ISP serves to a node, then splits to other houses, or businesses including yours, if the lines serving that node is capable of say for example 40gbps max and you got another users pulling more than 40gbps, you will see slow downs due to congestion.

Thats just simple way of thinking about it, you will have the kind of bottleneck in pretty much any kind of connection type even cellular, some more prone to others due to to various reasons.

Ah, that makes sense.

[AmaiAmai]

Other things can cause lag:

If you use wireless connection and have it set to "auto" it could be that it's changing channels frequently due to the increase in noise at night.

Your ISP might be doing maintenance every night or upgrading. They won't tell you that.

Most cell companies also perform maintenance at night and they sometimes reduce the signal strength at night as well due to noise and compliance with the law.