QUOTE(Vbs @ Mar 27 2011, 04:32 PM)
Hi guys, I just have UniFi installed yesterday but have already encountered a problem. My dad and I use Dell Inspiron laptops that were bought back in 2008, and both of us could not connect to the internet as we can't detect the wifi signal. My netbook on the other hand, which we got last year, was able to connect through radio signal. If we were to use the LAN cable, we could connect (on the Dell lappies)
I did a thorough search and found out that my network adapter currently supports only up to 802.11g for radio mode, while the radio signal detected on my netbook shows 802.11n (UniFi router). I then updated my network driver and hardware, but to no avail.
I have an inkling that the cause is the radio mode incompatibility issue, but I've been trying to solve the problem for hours now.
Can anyone help?
» Click to show Spoiler - click again to hide... «
QUOTE(yongkailoon @ Mar 27 2011, 04:47 PM)
Added on March 27, 2011, 4:49 pmYou'll have to login to the router and see if the wireless radio is configured to mixed mode or only to 'N'. If it's in mixed mode, it should be backwards compatible to network cards that does not support wireless-N.
QUOTE(IwanAGP @ Mar 27 2011, 04:51 PM)
That is ur hardware limitation on your old laptops. I don't think 802.11n is supported by 2008 models. What you can do now, just get into the router config page,
type 192.168.0.1 in ur browser, id: operator, pass: h566UniFi->Advanced tab->Advanced wireless tab on the left->Change wireless mode to Mixed b/g/n->In addition, to ensure more stable connection, change the bandwidth to 20Mhz instead of 20Mhz/40Mhz auto.
If this doesn't solve your problem, in the wireless mode option, change it to 802.11 mixed (b/g) in which the wireless will be broadcast at G mode instead of N which is the speed of 54Mbps instead of 150/300Mbps on N mode. However, considering that the internet provided by unifi will only hit max 20Mbps on VIP20, it's sufficient to provide you full experience for you internet. If you want sharing from one laptop to another at N mode then you need to enable it. Since you said two of your laptops are 2008 models, it won't support N unless you get it an adapter or change its wireless card. You can't get connected to a N network by just updating the driver. It's hardware problem, not driver problem. Haha... Hope i helped you xD
QUOTE(VerM @ Mar 27 2011, 04:53 PM)
1. the default wifi setup for the router should support b/g/n... however if you still unable to detect then perhaps you should try set it to b/g only...
2. if your wifi network adapter only support b/g then upgrading the driver won't make your adapter n... its the chip on the hardware...not software..
3. my current asus laptop was bought in late 2007 and i'm able to detect and connect to the unifi wifi router...
4. the other reason probably due to WPA2 security... some older laptops can not perform the necessary 'handshake'.... so downgrade to WPA or WEP (less secure)
» Click to show Spoiler - click again to hide... «
[attachmentid=2119834]
[attachmentid=2119835]
QUOTE(Vbs @ Mar 27 2011, 09:35 PM)
Thanks a lot on the replies, guys.
I still am unable to detect the signal despite changing radio mode. It can't be WAP/WAP2 settings because I can't even detect the signal to begin with.
So I was thinking that it might be the hardware problem, but then I went to the living room and I was able to detect my neighbour's UniFi (802.11n). That is so odd

QUOTE(VerM @ Mar 27 2011, 09:53 PM)
Added on March 27, 2011, 9:58 pmanyway, have u tried rebooting the router. I faced the same problem the same evening after getting my Unifi. Rebooted twice... Perhaps its due to channel conflicts..
QUOTE(VerM @ Mar 27 2011, 10:03 PM)
Added on March 27, 2011, 10:04 pmtry manually select the channel instead of auto channel
QUOTE(Vbs @ Mar 27 2011, 10:19 PM)
So, here was the problem: I didn't have WMM enabled. That solved
everything. Thanks to you, and to those who lent a hand, nonetheless

QUOTE(IwanAGP @ Mar 27 2011, 10:34 PM)
Lol... No one thought of WMM... Hahaha... Enjoy ur vip5/10/20 whatever... haha
QUOTE(VerM @ Mar 27 2011, 11:03 PM)
i dont think WMM is the problem...but if everything works now it should be good...
QUOTE(Vbs @ Mar 27 2011, 11:18 PM)
It could be the reboot. Here's what happened - I rebooted twice. After the 2nd reboot, I inspected the signal and it didn't show. Then I enabled the WMM for my network adapter and voila! I went to my dad's laptop to check.. he didn't have his WMM enabled but was able to read the signal.
Well, whatever works

QUOTE(VerM @ Mar 28 2011, 03:17 AM)
you can double check again with WMM disabled...
Spent the whole of last Saturday troubleshooting and sorting out my fiancée's newly installed Unifi VIP 5 service. Had the same trouble as Vbs (ie internet connection through LAN is okay but WiFi is out) which relevant posts are reproduced above. If only I had the benefit of the information above, which was posted after I got it fixed somewhat, I may have cut down some time spent.
WIFI
1. Turns out that when the Unifi installers set up the hardware (they performed an internet test on their own hardware after installation, which they were successful with), they enabled 802.11n ONLY on the DIR 615. This was one factor which made it impossible for my trusty Atheros AR5BXB63 (802.11 b/g) equipped laptop (which could detect the signal) as well as all other laptops which were of pre-802.11n vintage (which could not even detect the signal) to even connect to the router. iPhone 4 and Samsung Galaxy Tab could not connect too

After selecting 802.11 mixed b/g/n, connecting to the router was still not possible. Reckoned that it may be some interference and switched off the DECT phone but no go. Reboot (incl. power off), still nothing.
2. Tried manually selecting channels as there were quite a few networks lurking but again, it wasn't connecting. Finally selected Auto and guess this solved my problem - all laptops were now able to connect to the router and obtain internet access via WiFi.
But still bad news for the iPhone 4 and Samsung Galaxy Tab - iPhone could not connect to the router at all while the Tab could connect but cannot enjoy internet access.
3. Attempted suggested workaround by Rizwan
here (DIR-615 iPod/iTouch/iPad/Wifi Bug) but after changing the channel width/bandwidth option to 20 MHz from 20/40 MHz (Auto), the problem is still not fixed...and yet to be fixed to date

Any ideas?
IPTV
Another problem was HyppTV - either the set top box infrared sensor is faulty, or the remote control. Attempts to change channels with the remote control on installation day were unrewarded...got stuck with TV1 (had not yet realised the possibility of flipping open the panel and using the buttons on the set top box). In fact, the Unifi installers had an extra remote which they tried with, it too was not working. What I did was to move the set top about 15 cm further from the router an voila, I was successful once or twice in changing channels etc. Current guess is interference or a bad remote/IR receiver on the set top box.
HOMEPLUG
Next question is this, it seems to be reported that a HomePlug
may work even with 3-phase power. Well, the financial risk for experimenting is only RM189, right? Looking at TP-Link's
TL-PA211 which klseet posted - for HyppTV. If it works, hacking etc (to run CAT5 cables from 1st floor to ground floor) can be eliminated but if not, there goes the 'investment'. In the worst case case, sell homeplug at a discount

Much appreciate it if anyone (incl. hackwire) can post feedback here.