A community bug, maybe? Or is it a cybersecurity drawback…
I’m unsure if community issues might be thought of bugs. There are such a lot of issues that may trigger community issues. I’ve been repeatedly having issues with Xfinity (Comcast) right here in Savannah. A minimum of I believe it’s Comcast. I say Comcast as a result of though it’s now branded Xfinity I used the service as Comcast ceaselessly in order that sticks in my thoughts. I haven’t had time to noticeably dig into the community site visitors however I may need to if it continues.
I don’t use Comcast / Xfinity DNS. I take advantage of CloudFlare’s DNS as a result of it offers some stage of safety as I wrote about on this weblog put up:
As well as, I prefer to diversify the businesses that present my networking services to assist mitigate full management over my networking by anyone vendor. I like the concept of segregation.
Anyway, my community connection randomly fails in Savannah. I’ve been in a position to pinpoint Xfinity / Comcast as the issue previously by wanting up the outage map at Comcast.com. In some circumstances, I establish the outage previous to it showing on the map however normally it reveals up finally right here. You’ll have to sign up:
Currently, nonetheless, DNS has been failing however Comcast tells me every thing is ok. You possibly can take a look at your DNS on a mac with the next command:
dig google.com
On Home windows:
nslookup google.com
You need to get again a solution like this:
Should you get again NXDOMAIN which means there’s presumably one thing incorrect with the area title, although it may be the DNS server. Should you get a message saying you possibly can’t join, it may very well be that your Web is totally down. It may additionally imply that you’re related to the Web, however the DNS server that’s purported to ship you again IP addresses for domains is both blocked or not working appropriately. I’m not going to transcend that proper now to elucidate the distinction or extra checks however you’ll find them if you happen to search round on the Web (if you will get there).
In the meantime, when Comcast is failing, I examine from different units not utilizing Comcast’s community and DNS is working completely. The unlucky factor is that I can’t appear to power my cellphone to make use of CloudFlare DNS until I’m on a wi-fi community.
I suppose the following time it occurs I ought to activate Wi-Fi on my cellphone and examine DNS that method however previously few cases of this drawback, I merely went and did one thing else and once I received again the Web labored once more. Name me lazy, I do know, however I’m not getting paid to troubleshoot these issues and I had different issues to do.
So the issue may have been CloudFlare. It may have been Comcast. I do know it wasn’t my browser as a result of I checked a special browser. I suppose I may look into my community site visitors a bit extra and see if there’s an issue within the logs associated to one thing making an attempt to connect with a DNS deal with it shouldn’t be and getting blocked.
For the reason that drawback magically resolves itself, I are inclined to assume that it’s not possible that it’s my native community. The opposite evening my husband got here residence to observe TV and the TV wasn’t working. I had earlier had a DNS drawback and opted to do one thing else. The issue nonetheless existed till he reset the TV one way or the other.
I may spend hours troubleshooting all of this however I actually simply want the supply of the issue would go away.
Once I reported this drawback on my Twitter account, quite a few different folks stated Comcast is getting worse and worse and they’re having points. Is it simply Comcast or is that this associated to a cybersecurity drawback they don’t seem to be conscious of maybe? Undecided however at that time, once I checked Down Detector, between 300–400 folks had been reporting outages. At present the quantity is floating beneath 150.
https://downdetector.com/standing/xfinity/
Hopefully Xfinity Comcast can resolve these issues prior to later. I actually hope it’s not a cybersecurity situation. I by no means had this many issues in Seattle. Not even shut.
Teri Radichel
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