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Forum Discussion
Bschiffer
Jan 19, 2022Tutor
AC1900 C7000v2 - Slow WiFi speed
I have a AC1900 WiFI Model C7000V2 Combo Modem\Router and getting poor download\upload speeds Comcast is coming out this pm to "troubleshoot" the problem after of course going through the reset of r...
plemans
Jan 19, 2022Guru - Experienced User
what speeds do you get hardwired?
Are you testing over 2.4ghz or 5ghz? 2.4ghz is a much slower network and more sensitite to interference.
5ghz will go faster but hitting 60mbps over 2.4ghz is actually considered pretty great.
Bschiffer
Jan 19, 2022Tutor
Hi - I moved my iMac to the same room as router. I am now getting wifi speed of 142 mbps download and .7 mbps upload this is via the 5g connection vs 2.4g. I do not use 2.4g knowing that it will be slower.
I then Hardwired my iMac to the router (the cable is a 75ft RJ45 cable that a friend made me who owns a small networking business). Oddly enough I am getting slightly slower download speed at 120mbps and slightly faster .8 mbps upload speed. Thinking I got a bad RJ45,
I then changed out two different RJ45 cables (that comcast provided 5ft cable - brand new never used) to see if it was a bad wire to router.
I got 83.2 mbps download and .7 mbps upload. Still puzzled....
- plemansJan 19, 2022Guru - Experienced User
If you're not getting even full wired speeds, then we need to look at the cable connections info.
Do you have a screen snip of the modems cable connection and event logs?
(cable connection shows upstream/downstream, snr, etc )- BschifferJan 19, 2022Tutor
Resolved! Comcast identified that there was signal noise causing the issue. When looking at the amplifier in my house it was determined (and I should have thought of this) there was no need for an amplifier\splitter as I dropped all Comcast cable TV service 3 yrs ago thus not needing any of my coax connections in my house execpt the room where the router is connected. As soon as he bypassed the amplifier\splitter and connected the wire from the street directly to the line to my room with router my speeds nearly tripled for both wifi and hardwired connections. Now getting wifi speed via the 5G @ 175.1 mbps download and 10.7mbps upload. Feels like when I went from a 486mghz desktop to my first pentium machine.
- plemansJan 19, 2022Guru - Experienced User
Glad that took care of it!
You can mark it solved so others aren't reading through trying to fix it as well :)