May not be related, but just want to mention the chance that it's part of a DDoS. We've seen Mikrotik routers with DNS cache turned on be used in DNS Amplification DDoS attacks. My solution has been to add a firewall rule on the WAN port to block UDP/53 traffic that's not from hosts on our dns-server address-list.
On Mon, Jan 11, 2016 at 9:47 PM, Rory Conaway <[email protected]> wrote: > Nailed the problem down to the Mikrotik router having a problem with DNS > caching whether it’s Cox or Google. Not sure where to go from there since > the other 12 don’t have a problem. > > > > Rory > > > > *From:* Af [mailto:[email protected]] *On Behalf Of *Rory Conaway > *Sent:* Monday, January 11, 2016 4:44 PM > *To:* [email protected] > > *Subject:* Re: [AFMUG] Weird Problem with download > > > > We had raons bit no dangling cables. Level 3 says no errors to the modem > and we had a tech out already. We are changing the 2011 to a 450 just to > confirm before we eacalate further. > > > > > > > > Rory Conaway > > Triad Wireless > > > > Typed on my phone with one finger so please excuse typos and abbreviations. > > > > > > -------- Original message -------- > > From: That One Guy /sarcasm <[email protected]> > > Date: 1/11/2016 10:38 AM (GMT-07:00) > > To: [email protected] > > Subject: Re: [AFMUG] Weird Problem with download > > > > If it just started and youre in an area hit by storms, some of the > neighbors, mostly the empty houses with no tenants at this point, cable was > busted down by tree limbs and is dangling terminated byt the mud now > > > > On Mon, Jan 11, 2016 at 10:58 AM, Glen Waldrop <[email protected]> > wrote: > > Likely an RF issue on the cable side. > > I see this sort of thing with the company I consult for. They’ll have me > going through the router, trying to shut down the “virus” or peer to peer > when it is thousands and thousands of retransmits and broken packets. > > > > Just like our wireless it can have good quality until loaded, then watch > the quality drop to nearly nothing and loose connection. > > > > > > > > *From:* Rory Conaway <[email protected]> > > *Sent:* Sunday, January 10, 2016 8:25 PM > > *To:* [email protected] > > *Subject:* Re: [AFMUG] Weird Problem with download > > > > The Netgear router has nothing to do with it, I was just using their > website as an example of downloading a file. It’s computer, 2011, cable > modem, the world. I just can’t download anything from any sites. What’s > weird is they just drop. > > > > Rory > > > > *From:* Af [mailto:[email protected]] *On Behalf Of *Ken Hohhof > *Sent:* Sunday, January 10, 2016 5:12 PM > *To:* [email protected] > *Subject:* Re: [AFMUG] Weird Problem with download > > > > You mention Netgear, is this a Netgear router? They used to have a > problem with downloads stalling, but that was quite a few years ago. The > fix was to disable SPI Firewall. > > > > > > *From:* Rory Conaway <[email protected]> > > *Sent:* Sunday, January 10, 2016 6:06 PM > > *To:* [email protected] > > *Subject:* [AFMUG] Weird Problem with download > > > > We have a cable circuit that can do everything except download. There is > a Mikrotik router between the computer and the cable modem. Haven’t tested > taking the router out yet but we have tried 2 routers, same results. > Basically, downloads either don’t start or start and then just crash. Game > machines can’t update, even downloading a 20MB file from netgear fails. > Everything else seems to work. Any ideas would be helpful. > > > > *Rory Conaway **• Triad Wireless •** CEO* > > *4226 S. 37th Street • Phoenix • AZ 85040* > > *602-426-0542 <602-426-0542>* > > *[email protected] <[email protected]>* > > *www.triadwireless.net <http://www.triadwireless.net/>* > > > > “Life is full of unfair calls, missed plays, and bad catches. But true > baseball players keep on playing” - Lessons from Baseball > > > > > > > > -- > > If you only see yourself as part of the team but you don't see your team > as part of yourself you have already failed as part of the team. >
