I have some problems with my powerline LAN: The network works perfectly fine 80% of the time, but 20% of the time it is really slow. E.g. if
PC3 are playing an online game the ping drops from 50 ms to 200 ms once or twice per hour. These performance spikes only last a few minutes and after that, everything goes back to normal again.
PC1|Adapter1|\ PC2|Adapter2|-> (powerline) -> |Adapter4| -> |Router| -> Modem -> Internet PC3|Adapter3|/ \- PC4 (UPS, lots of devices), PC5
Some random facts about the network:
- Even if
PC3are offline the lag issue still remains
- The network worked perfectly before the USP and
- I recently changed the adapter on
PC1and the frequency of lag issues decreased
PC3can't connect to the network at all
- Adapter4 is not connected to the UPS
- PC5 is used a server and does backups for all the other computers
What could cause this issues?
- The UPS that was recently added?
- The increased number of devices connected to the power outlet on PC4?
- A broken network card?
- A broken powerline LAN adapter?
I can do some tests with the network, but the amount of the time where PC4, PC5 or the UPS can be disconnected from the network or switched off is very limited.
1: I am not really sure about this one. I don't play online games so frequently that I can pinpoint it to that exact date.
Answers to comments on this question:
My bet is that it's just network load. It could be two PCs talking to each other, saturating the powerline. It could be one PC saturating the Internet link
I can somehow exclude the powerline saturation issue, because I had a case where only PC1 and PC4 (PC4 is not connected to the powerline network) were online and the lag issue was still there.
Regarding the Internet link saturation: What I think is odd is that it happens periodically and only for a short time. I would understand a relation between heavy Internet usage (downloads, streaming, etc.) and performance problems for the other clients, but the problems would be long and random in this case.
Did some testing yesterday: When PC4 is online, the lag issues start. Normal web browsing on PC4 causes periodic performance issues on all other clients.