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Forum Discussion
itsthelag
Apr 21, 2020Aspirant
DoS Attacks - from varying sources and ports.
Hi There, Since all the working from home started - I've noticed sporadic interruptions while using Video conferencing and while gaming. I will get ping spikes for about 3-5 mins and then it's prett...
FURRYe38
Apr 21, 2020Guru - Experienced User
You can use a whois lookup service online to see what those IP addresses are coming from.
You should have your ISP change the IP address that is coming in from the modem as well to see if anything changes.
Some IPs maybe from services to devcies on your network. You may want to turn OFF all devices accept for 1 wired PC to see if the entries disapate any.
Have the ISP check the signal and line quality UP to the modem.
Be sure there are not coax cable line splitters in the between the modem and ISP service box.
Be sure your using good quality RG6 coax cable up to the modem.
- CrimpOnApr 21, 2020Guru - Experienced User
I have been collecting the logs from two Orbi's (one for over a year, one for 8 months). These logs record these "DoS Attacks" every day, and this is entirely normal. Orbi contains a firewall for a purpose. It rejects attempts to connect and has an option to record "interesting things" in the Orbi log. People have posted comments indicating that Orbi is to "liberal" at classifying random connection attempts as "attacks".
The user can "Disable Port Scan and DoS Protection" on the Orbi web interface, Setup, WAN Setup page. I believe this will stop the system from spending processing time recording and classifying things and writing them to the log. I am not confident that there will be a noticable improvement in performance.
Orbi's have a "public IP address", just as we have "public" street addresses and phone numbers. It is almost trivial to create a program which will "scan" IP addresses looking for systems that respond. This has been happening since the internet was created. It's like RoboCalls that just dial every possible phone number hoping that some of them will answer. I can set my phone to ignore certain calls and not ring, but that doesn't make the calls go away.
Since the service problems are serious, I would certainly try checking that box first.
- itsthelagApr 21, 2020Aspirant
Thank you for the advice - checking that won't leave me open to other security issues?
I downloaded a tool called ping plotter, and I really just don't know what i'm looking at - are these ping/latency spikes unusual?
- FURRYe38Apr 21, 2020Guru - Experienced User
No, those are not good
Did you test pings with a wired PC connected directly connected to the modem? Not with the RBR connected.
Have the ISP check the signal and line quality UP to the modem.
Be sure there are not coax cable line splitters in the between the modem and ISP service box.
Be sure your using good quality RG6 coax cable up to the modem.