I am having wifi problems as well. In my case, I have a strong connection/signal to Wifi but if there is no cellular signal then the wifi doesn't work. I also seem to have related problem if there is both a cell and wifi signal, the speeds or default go to cellular.
So, it seems right now this phone has problems with wifi. I can sometimes get it to work if I reboot or reset the phone.
What software version are you running?
Next step would be to master reset the device and retest. Be sure to back everything important up first.
Be sure to test the wifi first thing before any customization or application installation.
Thanks for the try but I have done a full reset twice and it does not resolve the problem.
I'm fairly convinced at this point that it is a Windows Phone OS issue. If you Bing or Google the problem you'll find TONS of people with the same issue.
I would like to see if there are any other options available for you please private message me your mobile number and I can take a look for you.
private message me by clicking my name and then the "send private message" on the right
I think i am having the same issue here as well. Has the solution been found?
I've got the same issue. I did some searching and found a Microsoft forum where this is also being discussed. You may wish to weight in there, too. However, it is mostly up to T-Mobile to raise this issue with its vendors (HTC and Microsoft).
In case T-Mobile support is reading this, here is the information for my phone:
I end up having to turn WiFi completely off, otherwise data access doesn't work or is extremely slow. Sometimes turning WiFi off and back on cures the problem, but only for a brief while before it stops working again. I've tried multiple routers now, but I've listed my primary one below. Interestingly, the "Internet Sharing" feature on the phone works great; it's the reverse of this -- using WiFi access points to connect to the Internet rather than going over the cellular connection -- that isn't working most of the time.
Wireless router: NETGEAR Router WNDR3700v2
Wireless router firmware: V184.108.40.206 Wireless configuration: WPA2, broadcasted SSID, 802.11a/b/g/n
Phone model: HTC Radar 4G (T-Mobile US)
Mobile Operator: T-Mobile US
Mobile OS version: 7.10.8107.79
Firmware revision : 1600.2200.20402.531
Hardware revision: 0002
Radio software: 16.23.05.13_2_16.30.00.23U
Radio hardware: 2.16.0.D4
Bootloader : 2.4.160015.3(136036)
Chip SOC: 220.127.116.11
PC OS version: Win7 x64
Zune version: 4.8.2345.0
Country: United States
The problem is T-Mobile
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