How do I diagnose bad modem / router issues?

[healbot]

I can't seem to figure out what is going on right now. Our internet is slowing down to a crawl, but the weird thing is that it only happens around 10AM to 7PM. It has only been happening during the past week, the week where we have been having a "heat wave". Can this be related?

I've connected our wired connection instead of through the router and through the modem, and still got slow speeds (around 1 or 2 instead of 20+ from Speedtest). When I spoke to our cable tech on the phone, they told me they rebooted the modem and then couldn't even see it on their network, even though I was still able to get on the internet (rather slowly).

Like I said, after it starts cooling down outside, it seems to return back to "normal" speeds. I'm not sure what to do.

Is there a way to test the modem (Motorola) and router (Cisco) by checking it's signals or anything? I don't want to pay for anything that I don't have to, and am wondering it it's an issue with the cable company and it being rather hot outside. I was told that there have been issues where the amp from the cable companies outside could be affected when the temperatures outside are high.

 

[digitaldoc]

Take the router out of the equation. Run Speedtest directly wired to the modem after it has been rebooted. If the speeds remain slow, than the issue is the modem, or your cable connection. Your ISP should help at that point.

Who is your ISP, and what speeds are you paying for?

On the modem, if you go to the address below, you can see the signal levels:

192.168.100.1

If you screenshot the page and post it, we can go over it and see if there is an issue.

 

[jsmithepa]

ISPs are so intentionally stupid.

All you have to do is to go into your modem and read off the SIGNAL STRENGTH, NOISE LEVEL, ERROR LOGS and it tells you what is what and I bet the ISP have access to it, but nope, they don't bother unless you have a solid failure.

For your info, go into your modem and check it out and see what's normal when cool.

To convince the ISP to do anything, I suggest you go into dslreports.com and download an app to monitor your Internet 24x7 with log the at the end of a week, print that log out, ideally on a graph, and show the ISP, SEE, what are you going to do about it?

 

[digitaldoc]

The ISP's do need some convincing. Sometimes this can be due to the 3-way splitter going bad with time, so it is not necessarily the modem.

Not sure which monitoring app. SamKnows uses special hardware to get the speeds over time.

http://www.dslreports.com/schedule

The one above requires membership, and purchase of points.

Neither of these are required to get the internet fixed.

 

[smorizio]

to the op also try ruling out your isp hardware as the issue, if you can try using open dns or google dns info to see if the speed changes. also blow the dust out of the modem to see if it over heating.