I checked, my ports speed is 1 gigabit everywhere, but why is my speed 50 megabits per second, but when I connect through a router everything becomes normal

Hello Ilya, without deeper details it’s very hard to give an exact answer. Did you check if this low speed happened on multiple days / daytimes? Is this a new IPFire installation or did you change anything? Is the IDS/IPS running - if yes, try to deactivate it and check if the speed problems are…

Nothing changes, even after disabling the Intrusion Prevention System, the speed is the same.

At some point something like this happened, but I don’t remember, and this speed is constantly maintained

Hi @papasha1213 , this suggests that your speed bottleneck lies within your local LAN. You will need to go through a process of testing/elimination to find where the bottleneck is happening.

Are there any free tracing programs for Windows, etc.?

I have used iPerf3 in the past for similar testing: iPerf - The TCP, UDP and SCTP network bandwidth measurement tool iPerf3 binaries - measuring TCP, UDP and SCTP bandwidth performance

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This is what happens [{865FE92D-62FE-4E3F-9106-E309B8D0B1CC}]

IPFire Community

Internet speed problems

Network

jon (Jon) 8 March 2026 18:33 9

Don't always blame IPFire (or the Internet)! Update Trouble

Over the past day I have been experiencing a really severe slowdown with my networks. I noticed it about one hour after I updated from CU 174 to CU 175. And it took a day to figure out! NOTE: normal is 800 Mbps / 20 Mbps Spoiler Alert (don't read) My streaming videos would not play properly on two different streaming services. I first checked my iPhone on the BLUE network. [2023-06-13 at 23.19.15 - iPhoneSE - IMG_1720 copy] I checked a GREEN network device. [2023-06-13 at 23.35.55 -…

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