for the past few month. someone has kept trying to brute force my ssh public key(using diffrent username and diffrent IPs) which hence I installed crowdsec, i didn't worry. doesn't sound like a big deal right? But after acknowledging CVE 2024-6387. I am thinking of if this started to be a problem. They stopped around 1-3week ago(the attack). i have checked /var/log/auth.log no ssh brute force attempts can be seen anymore.

And yes i noticed some abnormal phenomenon. my wifi sometimes goes off(3-4 times every day) I suspect that might be because I have moved to a new house recently and reinstalled the wifi.

I am in a panic, what can I do without reinstalling

edit: did a speedtest(by ookla)(cli):
Testing download speed................................................................................

Download: 0.00 Mbit/s

Testing upload speed......................................................................................................

Upload: 0.10 Mbit/s