this post was submitted on 26 Jun 2023
11 points (82.4% liked)

Selfhosted

39435 readers
9 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 2 years ago
MODERATORS
 

Hello Hivemind πŸ™ƒ

i need some advice here as i am losing my mind.

I have a Fritz!Box6591 and 1Gbit/s internet. Now since yesterday my complete network is extremely unstable. IF i can get any connection, it's as fast as it should be. But connections break down within minutes.

If i let the network "rest" for a couple minutes with barely no activity, i can then access everything perfectly fine for a few minutes until everything breaks down again.

What i did:

-Deactivated my local DNS (AdGuard) on my router -Restarted (even with 15 min. of no power) EVERYTHING. Literally everything in my homenetwork.

Since it's not only the internet connection and not one specific device and not even one specific type of connection (two WiFi Devices can't properly connect between each other just as two different LAN Devices on either different Ports on the router or same router port on a switch) i don't really know what to do anymore.

Obviously my router is the only common denominator but i can't see any issues with it. It's not overheating, it's RAM & CPU usage is perfectly fine, it's not gone it powersaving mode, it doesn't throw me any errors.

I already did tracepath's to every device and there is no unexpected hop on some theoretical phantom device (if my DNS became buggy or something).

If i ping one of my servers from my PC. It says i have a latency of 1~3ms but it is obviously hanging really hard. It could have a delay of 15 seconds before the next line in ping appears but that will still claim it had a 2ms latency.

I don't know what to do anymore and where to begin. Any ideas?

EDIT: Here is quick sketch of my network

EDIT2: Found the culprit - https://lemmy.dbzer0.com/comment/324192

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 3 points 2 years ago (1 children)

I would try to do it systematically. At my dad's we had a similar problem but not the same and there it was that my dad by accident created a loop in one of the switches.

I would start with turning off the wifi and disconnecting everything from the Fritzbox. Then I would connect a laptop with a ethernet cable to the fritzbox and check if this part works or if the Fritzbox is already broken.

[–] [email protected] 1 points 2 years ago (1 children)

I was hoping someone would come up with some form of magic and found the one thing i forgot...i tried to not disconnect everything (updated my post so you can see a sketch of my network) it would be a looooot of work....but i guess there is no choice

[–] [email protected] 1 points 2 years ago

Without a managed switch, it's basically your only option.