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Questions tagged [interference]

18 questions
23
votes
4 answers

What happens when wifi channels overlap?

There are many pages on the web advising the use of wifi channels 1, 6 and 11 only, so that your wifi channels don't overlap. Obviously this makes sense when you only have your network do deal with, but in most urban areas there are now a plethora…
Timmmm
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13
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1 answer

Will we have interference or reliability issues with many bluetooth devices in a small area

How many bluetooth headsets can exist in a small space without there being interference or reliability issues? We're about to switch our phone infrastructure to IP. New phones are on the way and we just realized 1) Headset support is expensive…
l0c0b0x
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7
votes
2 answers

New server causing weird noise in headphones and speakers; Is this electromagnetic interference? What's causing it?

I work for a small radio station that recently acquired a refurbished Dell PowerEdge 1950 server. After placing it in the server room along with several other servers and sound processing hardware (including a sound mixer), we noticed that the…
haroba
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6
votes
2 answers

Adjacent channel versus co-channel interference

What is the difference between the two in terms of affecting signal strength or performance? Where I work, everything is on channel 1 6 and 11 for the 2.4GHz spectrum and I've been told that co-channel interference is more manageable or better than…
P F
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4
votes
3 answers

Wireless LAN interference

I have set up at wireless LAN network in a small office, connected to a ADSL connection. Using a wired connection between a computer and the router, I get the expected ~8.5 Mbps down, and ~1 Mbps up. Using wireless connection, I get ~400 Kbps down,…
hstr
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3
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1 answer

Office drones want wireless mice. How can I avoid interference?

There were a handful of mice bought before I got here and they've had bad issues with random clicks, movements, and pauses. They've also had some issues getting them synced. They're using 27MHz RF. So, I could use Bluetooth, but there's already a…
dpflug
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2
votes
2 answers

gigabit cat6 cable connecting 100Mbps only (Electrical interference?)

I have a gigabit switch and I am connecting my laptop to it using a cat6 ethernet cable. The problem is it is connecting to 100Mbps only instead of 1Gbps. This is what i found : The is a zone in which the cat 6 cable passes where there are…
yeahman
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2
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3 answers

Wireless network infrastructure for an office with 40 employees

In my company we're facing connectivity problems due to our not very professional network infrastructure. We're growing now, and we expect to be 40 people at the office by the end of the year. I'm considering to set up a wired network with a…
Paul Ballesty
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2
votes
2 answers

Is there a minimum distance between UPS and Cat 6 cabling?

We've just re-wired our Sales Office using Cat 6 cabling into a new data rack. The cable loops down at the base, in case we need to use that slack in the future to re-terminate it, or to cover any other eventuality. This spare cable currently sits…
Matty Brown
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2
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1 answer

What are the causes for wildly changing but somehow cyclic RTTs on a 2.4 GHz network?

I have an AP that serves both 2.4 and 5 GHz networks (on separate SSIDs, without fallback). The neighborhood is quite busy (residential neighborhood) A ping from a wired device to a device on the 2.4 GHz network looks like this (the x axis is time,…
WoJ
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4 answers

wireless access point location relative to switches and other routers

any chance that wireless access point, wrt54g type with ddwrt, could cause a cisco router to go buggy and drop dhcp requests and other network issues? looking for some advice as the units are within a foot of each other and this is turning into a…
dasko
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1
vote
0 answers

TP-Link AP EAP120 proper setup : SSID and 2.4GHz frequencies

We are implementing a Hotspot wifi solution at a camp site. The Buildings are 3 floors with 16 rooms in each floor. There are 16 buildings like that. Every room can have up to 10 people. So at peak times every floor has 160 individuals that could…
devsahem
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1
vote
1 answer

gitosis interferes with hadoop

Never thought I'd write a title like that, but it's true I have gitosis and hadoop installed. > sudo /usr/lib/hadoop/bin/start-all.sh Enter passphrase for key '/root/.ssh/id_rsa': root@localhost's password: localhost:…
Mamut
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1 answer

Is it possible for EMI to affect power on?

I have a server that boots fine everyone in the office except for in the room I want to put it in. When I put it in that room it won't even get to the loading Windows screen it simply gets stuck in a reboot cycle. Other electronics have been known…
Pace
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1 answer

Do WiFi APs on same channel still interfere at a farther range (-70+)?

I am aware that the most common channels for the 2.4Ghz band are (1 ,6 ,11). They are non-overlapping. I also know that channel 6 is the default for most routers, if not set to auto. I am wondering whether or not WiFi interference is relevant if…
ma77c
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