I'm not very network-savvy, but I think someone is attacking my network. [Pic inside]

My network has been a bit... unresponsive lately, and reboots only help for a few minutes while the router recovers and wakes up, then it gets laggy again. So I checked my syslog, and find multiple pages of this invalid password login attempt. Is someone attacking my router? And more importantly, can I block it somehow?

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That...seems to be a real problem.
I think you have options, but the best one might be to get some real dude-bros on the case.
 
G
One idea may be to change your IP address. Depending on your ISP, you can do this by unplugging your router and or modem for 15 minutes or more. Another option may be to call them. If you are getting attacked, and it is coming from outside the network, this is a very good thing to try.
 
Something is pinging it an awful lot. Could be a bug also. Are you running DD? If you're not network savvy I'd guess not. Turn on your firewall (if it's not) and turn off remote access. Should take care of it.
 
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I am running DD-WRT, I flash all my routers to use it. I love the filtering options it provides so I can control device access like the teen's Roku at bedtime. I've turned off my wireless radios for now, and hope they'll get bored and go away. I also changed the username and password to something a bit stronger, the password being random numbers, letters, and symbols (saved it in notepad so I won't lock myself out)

That's where I stand right now. I might have made myself a target though by naming one of my SSIDs "Donald Trump is a faggot", I'm pretty sure that pissed off a nerd around me somewhere.
 
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G
If that doesn't work, you can always try nuclear war.
 
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You can try to block the MAC address of the device that's trying to break in, but if the attacker does MAC spoofing it will be useless
 
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Purposely making a SSID something that you know will piss some people off, well then you rather deserve what you are getting. Chances are that your wireless passphrase has already been figured out, so change it to something that isn't so easy to figure out.

Dd wrt is extremely outdated with endless unpatched security holes. Try a different, more current firmware.
 
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Adding to what THEELEMENTKH already said you could try using a MAC whitelist instead. This way only the devices you explicitly specify will be able to connect, but again, if that skidde has already a list of already connected MAC addresses and decides to spoof his own it'll be basically useless. Considering his very subtle and carefully concealed attack methodology, I doubt he took the time to dump them beforehand tho.
 
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