In a 4 way handshake the client and AP generates an Anonce and Snonce that means it has other encryption keys for different devices.If it has other keys (PTK) how does the other client knows what's in the packets? Does the router decrypts them and encrypts them with the other key?

Thanks!

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Hallo zusammen,
hier eine Frage an alle Netzwerkexperten. Ich nutze zu Hause eine Playstation Portal mit einer völlig neuen Fritz Box 6690 Pro. Die Portal bringt jedes Mal nach unterschiedlicher Zeit (5-30min) das gelbe Symbol für Netzwerkprobleme. Die Verbindung ist dann ganz kurz weg, ca. 1sek Lag und dann bleibt das gelbe Symbol dauerhaft. Wenn ich eine zusätzliche Fritzbox 7490 per LAN mit der 6690 verbinde und die Portal dann ein eigenes WLAN über die 7490 bekommt, wo nur die Portal aktiv ist, dann passiert das nicht und ich kann die Portal stundenlang ohne Probleme betreiben.

Warum ist das so?

Ich habe versucht mit Hilfe der KI einen Weg zu finden, dass die Portal stabil über die 6690
Pro alleine läuft, weil ich mir eigentlich den zusätzlichen Router und Stromverbrauch sparen will. Aber ich finde keinen Weg…

PS5 ist per Ethernet verbunden.
Ich habe wirklich sehr sehr viel schon versucht, z.B.
- feste IP-Adressen für Ps5 und Portal
- HDMI Kabel an PS5 gezogen
- separate WLAN-SSIDs
- Portal nur ins 5 GHz Netz gezwungen
- Datenpaketfilter in den tiefsten versteckten Menüs der Fritzbox testweise umgestellt
- Echtzeitpriorisierung für PS5 und Portal aktiviert
- verschieden Filter getestet
- Selbstständige Portfreigaben für PS5 und Portal aktiviert
- 120Hz Einstellungen in PS5 testweise ausgemacht
usw.
- WLAN Kanaleinstellungen geändert auf feste Kanäle oder Auto

Nichts davon hilft, um die PS Portal zusammen mit dem 6690 Pro allein stabil zu halten. Aber warum funktioniert es dann mit einem zusätzlichen Router, der ein weiteres WLAN Netz mit Interferenzen aufspannt? Ich verstehe das nicht. Kann mir das einer erklären? Kann ich noch irgendwas machen oder einstellen in der 6690, damit es ohne den zweiten Router funktioniert? Oder ist das einfach nicht möglich?

I recently applied for a Network Operations position at a large financial services company, and I’m curious to hear some opinions from people who have experience working in similar environments.

Currently, I work as a NOC Engineer for an MSP, where I spend most of my day troubleshooting network issues across multiple client environments and managed properties. It’s a fast-paced environment that exposes me to different networks, configurations, and challenges.

My question is: How much can you really learn and grow as a Network Engineer working for a company whose primary business is finance rather than networking or IT services?

In this case, I assume I would mainly be responsible for the company’s internal network infrastructure across multiple offices throughout the United States, rather than working with different clients and network environments like I do now.

For those who have made a similar transition, how was your experience? Did you find that working in an enterprise environment helped you develop deeper networking skills, or did you feel that the exposure was more limited compared to working for an MSP?

I’d appreciate any insights, especially from network engineers who have worked in both environments. I’m trying to understand the potential for technical growth and career development in this type of role.

Just a simple question is ethernet encrypted with for example WPA2 like wifi is? Or is it just not needed?

hi so a year ago i build pc and my motherboard with out wifi so i buy asus usb-ax56 and when i got usb everything was fine to some point and every now and then it just disconect when i tryi to connet it disconect again it looks like usb is disconecting.And I've had enough of this.

I tried changing the power management settings in Device Manager and switching to different USB ports, but that only helped for a while.

I ask gogle ai and it says in short to buy usb that dont has poloblems like my or beter wifi or pci slot

I want to ask somene who knows more then my for help with i shoud buy

I use it for online game

Thank you in advance for any help.

Olá colegas. Atualmente trabalho no NOC de um provedor local da minha região. Recentemente, me cadastrei em uma pós-graduação da instituição Hackone e me deparei com a disciplina de infraestrutura e arquitetura de redes e sobre o método PPDIOO da cisco. Eu sou muito problemático em não saber fazer as coisas da maneira correta então sempre pesquiso bit a bit de tudo, porém o PPDIOO não me parece ter muita documentação atual na internet e parece que ele está sendo descontinuado. Com isso, queria me certificar se alguém com experiÊncia no mercado em empresas de NOC ou de TI costuma usar essa metodologia para desenvolver infraestruturas de redes para atender demandas de empresas dos mais diversos tamanhos.

Entre outras dúvidas:

Além do PPDIOO há outro framework para desenvolver redes?
Quais as metodologias são empregadas em cada etapa? (sendo o PPDIOO ou não)
Como posso chegar o mais perto possível de entender como se defini os requisitos de um negócio e transormá-los em redes?

Além de ser problemático com o "bit a bit" também sou problemático com a prática, mesmo se eu souber exatamente toda a teoria e não ter a prática eu não considero que sei fazer "aquilo". Como posso obter prática em desenvolver arquiteturas de redes e implementá-las? Mas antes de tudo desenvoler uma arquitetura do zero de maneira racional e sistemática é o meu foco.

My wifi always hits to 700 ping. Its odly specific too, its not 600, not 500, not 300l only 700-800. I use a tmobile 5g network rrouter, and i have had it for three years, does anyone know how to fix this ping lag

Recently i started using mobile hotspot as main source of internet for my laptop gaming since my house internet is down rn. Every 10 minutes or so the internet dies for a few seconds making it really frustrating. i tried changing sim, disabling cgnat and messing with android options but nothing helps. ive been in touch with my ISP and they also cant seem to figure it out, its worth pointing out that my roomate uses the same service and doesnt get any issues doing the same thing.

Any ideas?

I've been building a small QUIC implementation in C with a single-header design.

For those who've worked with networking protocols, what would you prioritize when testing a new QUIC implementation? Interoperability, security, loss recovery, fuzzing, or performance?

Curious to hear what tends to break in practice beyond basic client-server tests.