Some sites won't work sometimes?
Usually, this happens on 99designs.co and instructables.com. Everything else works.
downforeveryoneorjustme.com says that the sites are up.
I switches to Google Public DNS, and the problem still occurs.
If you need more details, feel free to ask.
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M$2 Answers
From the Start button or Win7 Orb we need to get to a command prompt.
XP: Start, Run, Enter "CMD" without the Quotes and enter.
Win7: Search Box, Enter Command and you should see a Command Program, click it.
Now for a basic test just ping the site and see if you get a DNS resolve and/or a reply. At the promt type:
ping instructables.com (hit enter)
The first thing we want to see is if instructables.com resolves to an IP address. If so then DNS is working. The next thing your looking for are replies. I checked that site and they do respond to pings, some sites may not. That completes the basic test, you will know if DNS works and if you can actually get to the site.
The second thing to check is if you have connection issues between yourself and instructables.com. Similar to Ping just type tracert this time and you will get the path your connection is taking to get to that site. What your looking for is any hop where the response time is up in the 200+ms or worse.
tracert instructables.com (hit enter)
What your getting is a feel for how your connection to that site is acting at a point in time. Just because it works now does not mean it works later. Try these test when your having issues.
The problem itself could be almost anything. Your ISP could be having issues, your local loop could be congested, the website itself could just be to busy.The above tools will help you figure out which it could be. If it looks like a connection problem, especially using Tracert if it shows the first couple of hops being slow then contact the ISP. If it's on the tail end then it's the website's connection and not much you can do about it.
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$
I would take and get a copy of your tracert to multiple sites and send those to your ISP. To output what your seeing to a text file do the following:
tracert www.problemwebsite.com>problem1.txt
You can then open that text file in Notepad or email it to your ISP and they can see what your seeing. Remember if it's on the tail end then it's not likely your ISP directly but maybe who they are sending your traffic over. Let's say in the case of Road Runner I will be on their network for the first half dozen hops then they dump me onto some backbone provider to get me to where I want to go. Depending on the backbone provider and possibly the deals they have in place with that provider you could get different results.
If this is on a notebook one great thing to do is to go to a local wifi and run the same test. If the test on a public wifi spot shows great response times and your ISP sucks then you certainly have a cause to get them on the phone for not providing what they are selling.
I do provide remote support services so if needed we could do a shared session.
I just tried 99designs.co and the server is down so the problem isn't yours to fix. The same may be true for instructables.com, they may just be having server problems or with the weather a local node is down.
This is a nice answer. A GUI tracert tool I like to use is HyperTrace by AnalogX. It's freeware (not adware). Its entirely possible that your hops to the sites in question are choking and the hops from downforeveryoneorjustme.com are fine. Sending the results of a tracert (or hypertrace) to your support at your ISP can help. Here's the link http://www.analogx.com/contents/download/Network/htrace/Freeware.htm
I should add that I did not check up on those servers to much so can't speak to the quality of the server(s) or who is hosting them. It is entirely possible they are on a shared server where dozens or hundreds of other sites also are located and the server is just over burdened or the hosting company doesn't have the bandwidth during peak times.