Develop Bugs

Unable to connect Wireless Lan when phone signal is weak?

Hi,
I'm experiencing a weird problem and please let me know if it's only my problem or there is some work around for it.
My phone is SX66 upgraded to 1.40 ROM + 1.13 Radio stack
I can connect Wifi fine whenever I have some phone signal (at work). Whenever I go home where the phone signal is weak then the WIFI couldn't get connected (I believe I set up my home network correctly as I've been using it for so long and configure it for several computer/laptop in house). The network could detect the AP with the SSID but I just couldn't connect to it even I'm sitting right next to the AP.
ROM 1.40
Radio: 1.13
MDD

Are you sure it isn't connecting? What has led you to this conclusion?
Is it possible that it is connecting, but that you just can't browse the internet, in which case check your connection proxy settings. If your work uses a proxy server and you've enabled the pass-through setting in ActiveSync, your network connection may be configured with your work proxy server.
If you're sure you're just not connecting however, things to check are;
WEP/WPA Encryption - If you're using it and have other wireless devices on your network, you no doubt know what to do. If not, say so & I can help you.
DHCP - Does your router/AP support Auto-IP Addressing? Is it enabled? If not, you'll have to configure the WiFi card with a static IP within the same subnet as your router. Ask if you need help.
MAC Filtering - Are you blocking unauthorised MAC Addresses (on your router/ap)?
Interference - Wireless A/V Senders and digital cordless phones are common culprits for RFI. 802.11x APs support multiple channels (most default to channel 11), and you can change these in case of interference. Once again, if you have other WiFi gear already connected with good, strong signals, you can probably discount this one.
Sorry if this is all elementary to you - I don't know how technical you are.

Thanks for your reply.
> Are you sure it isn't connecting? What has led you to this conclusion?
Yes, I've check wireless status on the phone. "Connected to the network", and the AP with DHCP on showed the status of an IP has been allocate to the SX66 mac address. However I dont' really believe it then I check the "Adater", it said network available, and the WIFI icon just didnot show any traffic.
> Is it possible that it is connecting, but that you just can't browse the internet, in which case check your connection proxy settings. If your work uses a proxy server and you've enabled the pass-through setting in ActiveSync, your network connection may be configured with your work proxy server.
I've experience once with the internet connection via Active Sync so I disable the passthrough. Both home and work doesn't have proxy server so I selected not to have any on the phone.
> WEP/WPA Encryption - If you're using it and have other wireless devices on your network, you no doubt know what to do. If not, say so & I can help you.
At work, I have 128 WEP and the connection works fine with the key. At home, I open my network but using MAC filtering to protect it. I have problem with the open network one at home. Perhaps, I will try to setup WEP at home and see if it can work.
The only thing I'm not really clear is the difference between setting "WPA" and "WPA-PSK" from the phone.
> DHCP - Does your router/AP support Auto-IP Addressing? Is it enabled? If not, you'll have to configure the WiFi card with a static IP within the same subnet as your router. Ask if you need help.
Yes, DHCP enable as I don't want to change it back and forth when traveling.
> MAC Filtering - Are you blocking unauthorised MAC Addresses (on your router/ap)?
I do it and I already opened the network and then captured the MAC address into the AP memory. (that's why I think it's connected but will check).
> Interference -
Not really, I'm 6' away from the AP and I don't have any cordless device in my computer room.
> Sorry if this is all elementary to you - I don't know how technical you
are.
No problem, I'd like to learn more about this PDA. The concept is about the same with PC, but the tools to debug is not there. I can't use tracert/traceroute, ifconfig or ping broadcast to really know if I'm the network.
Once again, thanks a lot.

Okay, well it sounds like you're on the right track & know what you're doing.
A useful troubleshooting tool, which gives you tracert, ping, whios, ipconfig and a host of other tools is "vxUtil", which is freeware. I'd give you a URL for downloading it, but I'm on my iMate now (sipping coffee by the Yarra in a Melbourne Cafe - oh what a techno-wanker am I!), but search these forums or Google it and you'll find it.
Now, regarding the proxy thing... These PPCs are a little tricky with their internet settings, and I had to create a different 'connect using...' connection profile, if that makes sense. The important setting within the profile, which is under the Proxy tab, from memory, is "This network connects to the internet".
Now for some reason, if you don't enter in a proxy server here, that check-box doesn't stay checked when you ok your way out. So what I've had to do is go into the advanced area & enter anything in the "wap" proxy, then ok out.
Strange, but it seems to work. Although I always leave my "Private network" on "My Work Network", I can now browse the 'Net through the WiFi AP/Router.
Download vxUtil & see if you can ping your AP, then go from there.

I've worked around the problem by using static IP address instead of depending on DHCP. Thanks to Hitchhiker software. I noticed that it was trying to obtain IP address from DHCP but failed. (The very same DHCP work wells for the rest of my network). Anyway, I will use Hitchhiker to switch IP back and forth if necessary.
Thanks a lot!
MDD

Great to hear you found the problem - well done.

MAC Address Changing with every Reset?

Just updated my HD7 to the update with internet sharing. After this, I can confirm that every time I reboot my phone, I get a new mac address. Which prevents me from connecting to my MAC-address-filtered wifi. I've done it 6 times and gotten 6 unique MAC addresses.
Does this happen to anyone else's phone? HD7 specific? or all phones with internet sharing? My internet sharing is turned off.

That's strange, I've never heard of a device with a dynamic MAC address before. Does your phone have one printed under the battery?

Nope, just IMEI, SN and PN. No MAC address.
This must be related in internet sharing somehow.

silvertonesx24 said:
Does this happen to anyone else's phone? HD7 specific? or all phones with internet sharing? My internet sharing is turned off.
Click to expand...
Click to collapse
I can confirm this on my HD7.
MAC changes on every reboot.

I confirm too,i have the issue of mac adress changing every reboot
& my wifi is not visible since the update,My wifi is N and i can only see wifi G near me but not mine

hi
for me too : mac adress change after shutdown.
for time don't shutdown the phone to have same mac adress with my internet box.
htc support tell me that they will answer on monday.
but i think it's a big problem with this update...
Ben

That's a bit strange. Normally you can't change MAC's for yourself, only spoofing is possible. If WP is really changing the MAC adress with every reboot, WP needs a valid MAC adress block licensed from IEEE, otherwise it would be a violation against IEEE.

I thought mac address we're never aloud to change!?

Lol that's illegal as all hell, a dynamic mac address

Gotta be a glitch in the firmware surely? No way that's allowed. Your definitely sure it's not a dynamic IP address you're seeing?
Sent from my SGH-i917 using Board Express

ive also asked this question a couple of days ago right after applying the htc internet sharing update. and ive posted my question here (entry #38) and people provided good answers about it. hope this helps

Yes, mine also changes it's only when i read this thread and test my hd7 and i notice the changes.But I S is a breeze.

The issue is that some people assign static IPs to devices on their home networks, and this is done in most routers via MAC address coupling (MAC a always gets IP z and so forth). That way you can simply block all devices you and people in the residence do not own. I do it on all my machines for development reasons, cause I like knowing I can always use x IP address to get at a certain machine even if I turn it off or it's down for a while for repairs. The IP never changes as long as I continue to use that specific network card in the computer.
I don't know why they would do that. Perhaps for security reasons?

I have the same problem - cannot connect to my University WiFi network as the MAC address keeps on changing....
This is crazy!

They better get on that quick! They could get in a lot of **** for that

putting aside the weird WP7 behaviour for the moment...
MAC filtering is useless as a security measure. It's trivially spoofable by anyone who actually wants to attack your network, and causes a pain in the arse for yourself. do yourself a favour and disable it already. the only thing it might be good for is router-side internet access control of your technically challenged 8 year old who doesn't know how to use google.
just use a strong password i.e. 20+ characters alpha (upper & lower) + numeric + special characters, and proper wireless security (WPA-2 AES, or at least WPA AES) and you'll be just fine.

Confirming
That update was a bag full of $$$$ !Luckly I was able to restore through Zune,but my Bootloader (SPL) was also updated to 5.01 and no way of going back!

With regards to the missing WiFi network - make sure it's not using Channel 13. The new update seems to disable the use of Channel 13 for some reason.
There is also another issue with the changing MAC's - I believe that some "public" WiFi networks such as the cloud use the MAC to remember your device and allow it to connect...

primexx said:
putting aside the weird WP7 behaviour for the moment...
MAC filtering is useless as a security measure. It's trivially spoofable by anyone who actually wants to attack your network, and causes a pain in the arse for yourself. do yourself a favour and disable it already. the only thing it might be good for is router-side internet access control of your technically challenged 8 year old who doesn't know how to use google.
just use a strong password i.e. 20+ characters alpha (upper & lower) + numeric + special characters, and proper wireless security (WPA-2 AES, or at least WPA AES) and you'll be just fine.
Click to expand...
Click to collapse
Mac filtering is not useless as a security measure. It's not used by itself. It's used in conjunction with other methods, the same way businesses also hide their wireless network's SSID.
I'm not filtering on an Open Connection. That would be retarded.
Seriously...

GrahamWager said:
With regards to the missing WiFi network - make sure it's not using Channel 13. The new update seems to disable the use of Channel 13 for some reason.
There is also another issue with the changing MAC's - I believe that some "public" WiFi networks such as the cloud use the MAC to remember your device and allow it to connect...
Click to expand...
Click to collapse
im not sure though but im guessing so does other apps with secured log in parameters. i do have the bank of america app. right after i did the update, and after inluding the new mac to my networks allowed list of mac addresses, the boa app again posted a message saying that the device where im accessing boa has not been used previously to access the account. so im guessing that it saves all the mac addresses of devices that accessed a boa account.

Galaxy W Wifi Drop Problem...

Hi everyone,
I'm using Galaxy W with stock ROM (XXLA2/rooted) and ZyXel (P-660HW-T1 v3) wireless router. I can connect and use wireless home network for a period of time but after a while WiFi drops and then reconnects. This repeats continuously...
I've tried switching WPA2 to WPA also tried using MAC filter only (without WiFi pass), but all of them were useless... Changing from dynamic to static IP also did not worked
I tried a couple of Market apps to fix WiFi issue, but they did not help me either...
Do u have any idea what may cause my WiFi drop problem?
I need your help...
Thanks...

Have you the latest firmaware on your Zyxel?
And is your phone only having problems with this router or all access points? (just to determe the problem eg your phone or your router)
Edit: Try to set the "ReAuthentication" setting higher (9000), i think that solves your problem!

Yes my ZyXel firmware is up to date.
I could not have chance to test my phone with other access points
By the way where can I find the "ReAuthentication Setting" ?

souwatt said:
Yes my ZyXel firmware is
By the way where can I find the "ReAuthentication Setting" ?
Click to expand...
Click to collapse
Don't know .... i did read your user manual, but didnt pay attention where this settings is....
You have to try to find it yourself

Ok, i found it and set to 9999 max value
I'm testing it, i hope i do not get any more drop
Thanks for your interest...

Well you can get a drop, but its only every 2.7 hour, if thats not ok, you could try to set it to 0 maybe then re authentication is fully off.

Setting the value to 0 sounds good Then it will become something like WEP i think...
Anyway I'll try also this...
Thanks...

please don't use wep keys as they are awful weak
stay with wpa or wpa2

Actually I do not wanna use WEP but since it is static maybe it will help me get a more stable wireless connection. And when i tried WEP for the first time, I noticed signal quality got a abit stronger Is it logical or strange?
I know WPA/WPA2 is more safe but I wonder if using WEP with MAC filter is equivalent to WPA in terms of security issue?

souwatt said:
I wonder if using WEP with MAC filter is equivalent to WPA in terms of security issue?
Click to expand...
Click to collapse
It isn't. Have a read about the differences:
WEP used a 40-bit or 128-bit encryption key that must be manually entered on wireless access points and devices and does not change. TKIP employs a per-packet key, meaning that it dynamically generates a new 128-bit key for each packet and thus prevents the types of attacks that compromised WEP.[3]
Click to expand...
Click to collapse
(From the Wikipedia Wi-Fi_Protected_Access page - I can't paste the link as I'm a new forum user)

I see...
I'd better keep using WPA/WPA2.
Thanks for the explanation...

souwatt said:
I know WPA/WPA2 is more safe but I wonder if using WEP with MAC filter is equivalent to WPA in terms of security issue?
Click to expand...
Click to collapse
MAC filter security is the best, and even much better than WPA or WPA2!
The advantage is that MAC id's are like a footprint for a network card, like a DNA.
The disadvantage is that every device you want to add you have to do it manually.
Good luck!

my phone does drop wifi sometimes too.

TuxBrothers said:
MAC filter security is the best, and even much better than WPA or WPA2!
The advantage is that MAC id's are like a footprint for a network card, like a DNA.
The disadvantage is that every device you want to add you have to do it manually.
Good luck!
Click to expand...
Click to collapse
Sorry dude, but i can't let you say such a thing.
MAC filter can improve security with encryption but cannot replace WPA/WPA2.
I can crack your mac filtering with WEP security within 10 minutes or less. Just sniffing promiscious packets from your router and identifying your network device MAC address.
Many tools exist to easy change any MAC address from network devices. So no, mac address is not a DNA, because it can be changed easily.
So, the best is still WPA2 Entreprise (but it needs Radius Server) or WPA2 personnal with AES encryption. And MAC filtering is good idea, but not alone !.

Thanx mate.....I was just gonna post a link about MAC spoofing and how insecure MAC filtering is.
Here it is anyway:
m.techrepublic.com/blog/security/how-to-spoof-a-mac-address/395
Sent from my GT-I8150 using Tapatalk

Bad luck
I do not understand, although I tried wifi connection with WEP without MAC filtering and also WPA (with "0" & "9999" reauthentication setting) I still get drops
Any other idea/suggestion?
(as a reminder: I'm using Galaxy W with stock ROM (XXLA2/rooted) and ZyXel (P-660HW-T1 v3) wireless router)

I'm still having wi-fi drop issue with also custom ROMs...
Is it possible to replace/update modem driver?
Do you have any other idea?
I need help...
(my current ROM: Cow ROM v6)

Hi... i had the same problem with custon or stock roms, and TP-Link wireless AP.

robertomarconi1 said:
Hi... i had the same problem with custon or stock roms, and TP-Link wireless AP.
Click to expand...
Click to collapse
I'm using ZyXel (P-660HW-T1 v3) wireless router.
By the way did you solve drop problem?

Problem still exists...
Hi friends,
I'm still having wifi drop issues... Wifi keeps connecting for a couple of minutes and then drop and reconnect again... in a cylce...
I tried lots of things but could not completely solve issue...
Any other idea?

802.1x wifi problem | galaxy gio

Hey,
I want to connect to a 802.1x security wifi network on my school, it does connect.
It sais I am connected but I can't browse the web and all my apps dont refresh either.
Is there anyway I can fix this? Maybe with some setting or change in root?

work fine on mine

I'll install cm9 as soon as I can, and see if it fixes my probs. Otherwise it could be a chipset problem, that it just doesnt support. Some other people on my school also cant connect (budget phones).

I think its weird that some devices can connect and others not, on my school, some galaxy s or galaxy ace will connect while others can't. I have cyanogenmod 7.2 with android 2.3.7! I think it should work but someway it keeps connected, so I am connected to the router, but I can't browse the net. Maybe it cant open default gateway in someway?

maybe that router is not compatible .. i have the same problem in some places..

I think it's weird some devices connect and other do not, maybe it has to due with diffrence in android versions? I use cyanogenmod 7.2, android gingerbread 2.3.7

Oi, there is so much that could be going on here...
Its an Atheros AR6003G chip, which as far as i know, supports 802.11 A/B/G/N, and hardware encryption for WEP/WPA...
Odds are, if its an 802.1x type network, the chip will do the encrypting/decrypting after the handshake is completed, provided its set up correctly. WEP and WPA are set up by using a Pre-shared Key that all users need to have... If you study how to recover the key, you'll find that the hash is created by taking the plaintext passkey, running it through the specified algorithm, then salting it with the name of the network. So long as all devices have the correct network name and the correct plaintext password, any device can connect to the network, because they'll all end up with the same hash.
802.1x encryption is different. It uses an authentication server. This makes it similar to any modern computer you log onto. You provide the computer with your credentials, and it checks it against the server. If they match, then you are allowed access. If they don't you get an error message. Which means, that if anything is broken, it won't work. If you don't use the correct authentication protocol, it won't work. If you don't have the right certificates, it won't work.
Best advice I can give is, double check everything. Make sure your Gio has the correct certificates and that its using the correct protocols. Double check your IP/Subnet Mask/Gateway addresses. If you don't have an IP address, you'll have to manually configure it. If the Subnet Mask is incorrect or the Gateway address is incorrect, it won't work either. Also, check your DNS server addresses. If those aren't correct it won't load any webpages using URLs. It will only load them using the IP address of the server. Which means, telling the browser to go to www.google.com won't work, but if you tell it to go to 173.194.67.99:80, it will load the Google homepage.
Hopefully this will give you somewhere to start...

Yes true, only problem is that static IP's dont work, otherwise I could just copy the DNS and gateway numbers from a device it does work on. It uses DHCP and I think that I have the problem you told about.I dont think our school uses certificates cause a friend of my (Galaxy S) can connect without having installed certificates or something.
I think its an hardware isue and it cant decrypt the code well, my WIFI indicator stays white, with internet acces it should turn blue or green.

runedegroot said:
Yes true, only problem is that static IP's dont work, otherwise I could just copy the DNS and gateway numbers from a device it does work on. It uses DHCP and I think that I have the problem you told about.I dont think our school uses certificates cause a friend of my (Galaxy S) can connect without having installed certificates or something.
I think its an hardware isue and it cant decrypt the code well, my WIFI indicator stays white, with internet acces it should turn blue or green.
Click to expand...
Click to collapse
What if you go to wifi settings- menu button - advanced settings- 'regulier domein' I know you are dutch, dont know how it is called in english, something like regular domain I guess.
Then set it to 11 13 or 14 try them out, fixes my wifi, also at school with 8.11x connection mode
Sent from my GT-S5660 using xda premium

runedegroot said:
Yes true, only problem is that static IP's dont work, otherwise I could just copy the DNS and gateway numbers from a device it does work on. It uses DHCP and I think that I have the problem you told about.I dont think our school uses certificates cause a friend of my (Galaxy S) can connect without having installed certificates or something.
I think its an hardware isue and it cant decrypt the code well, my WIFI indicator stays white, with internet acces it should turn blue or green.
Click to expand...
Click to collapse
That is very very odd... I use a Linksys WRT54G2 router at home, and its set up for DHCP. Its address is the standard 192.168.1.1, and it can address 50 clients between the addresses of 192.168.1.100 and 192.168.1.149. However, if i set my computer up to use static settings, it works just fine... Granted the networks are probably set up differently.... but the theory should work just fine...
Code:
IP: 192.168.1.4
Subnet Mask: 255.255.255.0
Gateway 192.168.1.1
DNS: 64.59.160.13, 64.59.160.15
Are you positive it doesn't work?
If you can get me the encryption type, IP address, Subnet Mask and Gateway address your friends phone uses, I may be able to help more... The more information you can get me, the better.
The only reason I can think of that would cause it to not work is that the IP address is already in use, or the Subnet mask is incorrect... It shouldn't matter what IP address you use, so long as the subnet mask and gateway are correct... In theory anyway...

I'll gather them and put them in a post!
Thanks for your help so far,

Im on the same school as runedegroot but the neteork does work for me, and i dont think a stattic ip will work cause the network is spread over a lot of routers so if any other phone gets that ip via dhcp it wont work anymore
Sent from my GT-I9000 using xda premium

Well, apparently DHCP doesn't work for him, so whats he have to loose?
Although that's quite interesting... What phone do you use, and whats the network information you have when you're connected to your school's network?

voetbalremco said:
What if you go to wifi settings- menu button - advanced settings- 'regulier domein' I know you are dutch, dont know how it is called in english, something like regular domain I guess.
Then set it to 11 13 or 14 try them out, fixes my wifi, also at school with 8.11x connection mode
Sent from my GT-S5660 using xda premium
Click to expand...
Click to collapse
I'll try, it didn't give me positive feedback when I tried it on MC 7.2, I'll try monday.
Btw, voetbalremco is a dutch name, you also have a dutch thumbnail, but you aint dutch?

atirox said:
Well, apparently DHCP doesn't work for him, so whats he have to loose?
Although that's quite interesting... What phone do you use, and whats the network information you have when you're connected to your school's network?
Click to expand...
Click to collapse
I use galaxy gio, gt-s5660. Maybe willie1001 knows it, I can't see it when I'm at home.

I have the same problem

runedegroot said:
I'll try, it didn't give me positive feedback when I tried it on MC 7.2, I'll try monday.
Btw, voetbalremco is a dutch name, you also have a dutch thumbnail, but you aint dutch?
Click to expand...
Click to collapse
Im dutch, but the forum is english so I also post in english, I dont like it neither if people post in polish or whatever I cant read..
Sent from my GT-S5660 using xda premium

runedegroot said:
I use galaxy gio, gt-s5660. Maybe willie1001 knows it, I can't see it when I'm at home.
Click to expand...
Click to collapse
Actually that was for willie1001...
And its possible that changing the reguatory domain could work. If you're running software designed for the states, it would disable any channel above 11... But then again, if you can "see" the wireless network in the settings menu, it would make sense that its programmed to use a channel isn't above channel 11... Which would mean that changing the regulatory domain wouldn't help it at all...
Come to think of it, if your MAC address is blocked, it wouldn't allow you access... But then again, you'd have to do something for the school to block your MAC address. And if the other students can access it, then it would have to be specifically you who did something to piss off a teacher.
Also, any information you can get me about the router would help greatly. By figuring out the manufacturer of the router and the model number of the router, its possible to narrow down the likely IP addresses that the router would use..

atirox said:
Actually that was for willie1001...
And its possible that changing the reguatory domain could work. If you're running software designed for the states, it would disable any channel above 11... But then again, if you can "see" the wireless network in the settings menu, it would make sense that its programmed to use a channel isn't above channel 11... Which would mean that changing the regulatory domain wouldn't help it at all...
Come to think of it, if your MAC address is blocked, it wouldn't allow you access... But then again, you'd have to do something for the school to block your MAC address. And if the other students can access it, then it would have to be specifically you who did something to piss off a teacher.
Also, any information you can get me about the router would help greatly. By figuring out the manufacturer of the router and the model number of the router, its possible to narrow down the likely IP addresses that the router would use..
Click to expand...
Click to collapse
Haha no, I didn't piss of a teacher
I think it's a gio problem, willie1001 has the galaxy s with cyanogenmod 9.
I have gio with cyanogenmod 9. But it also didnts work with stock or cyanogenmod 7.
I will send you some information I can see on my phone, if I won't forget it

runedegroot said:
Haha no, I didn't piss of a teacher
I think it's a gio problem, willie1001 has the galaxy s with cyanogenmod 9.
I have gio with cyanogenmod 9. But it also didnts work with stock or cyanogenmod 7.
I will send you some information I can see on my phone, if I won't forget it
Click to expand...
Click to collapse
Man, thats odd... I assume you aren't on the North American continent... Where did you pick your Gio up from?
You know... Its possible that the issue you have was fixed in a base band (modem) update... You could try flashing the phone to the latest OE firmware (Not necessarily the one that came with your carrier as branded firmware tends to take forever to get updated), and see if that works...

Question USB tethering changing IP address

Each time USB tethering is activated on POCO F3, its USB network adapter IP address and the provided DHCP address pool changes since the last time. Hence the connected PC gets a diffrent IP address each time. The phone's IP address (seen as gateway address from PC) is different too each time. As I read somewhere this is a new "great feature" of the Android 11.
Is there any way to prevent this and to keep the same phone's IP address and the provided DHCP address pool for every USB tethering session?

Simple answer, no. This security feature is there since Android Q, it's annoying cause you have to check the IP each time, but it provides a great level of security.
Unless you are willing to downgrade to Pie (which your phone doesn't even allow), there's no easy workaround for you here.