I noticed in the log it execute this command:-

Does yours also executed the same command? Especially the "115200".

Weird, I got low speed. Maybe incompatibility between the phone & router?

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Added on October 30, 2011, 4:18 pmI figured out what's wrong. The phone didn't get enough current to support HSPA speed. I connected the phone to USB hub & connected the USB hub to TP-Link router. The USB hub have AC adapter plugged to it & this make the USB hub is self-powered. The download speed I got now is 1XX KB/s, still below 200KB/s but at least it faster now. I'll try to tweak the MTU later to get faster speed.

HUAWEI E182E unlocked from mobile2wifi.co.uk for ref. hope it helps.

My MR3420 sometime can detect my MF190 Umobile modem but sometime unable to identify the 3G modem wor.. Is this normal or is there any way around it?

cant make this happen, whats the proper steps. i think some steps is missing... please help thank you.

bot de router... easy to setup... good!   

but sucky part is... de signal of my umobile is not that strong ler... 45% gets me 2.6mbps... acceptable but i got2 put de modem at my living room... put it deeper in, gets 19% signal nia and gets me ard 1mbps and sometimes under 1mbps... hmm...

1na get a looooonnngggg usb cable and hang the usb modem outside i wonder will it work?

Google and results me this: http://www.tp-link.com/mx/support/showfaq.asp?id=171

Erm, plan to buy this router to use with my E1762. After started using E1762 with my Aztech HW550-3G, I noticed that it is difficult to get it connected. The blue LED on E1762 keeps blinking non-stop and I can't seem to get it connected.

However, when I was using ZTE MF622 such issue did not happen. It got connected easily...

For those using this router with E1762, is it difficult to get it connected? Or it takes long time to be connected?

Thanks for the update, until one day which I can't tolerate the slowness anymore, I'll get this router.
I foresee this day will come very soon.

I couldn't deny this point but surprisingly this wasn't an issue when I used it with ZTE MF622.

Hey, as TP-LINK support was as useless as it can get, i believe you guys are more competent.
Problem: 3G connection gets randomly disconnected in every 20min - 1hour.
Router has only 3G connection; newest firmware.
Location: Estonia (north-eastern Europe); carrier EMT.
Modem ZTE MF636
Settings: link 1 and link 2
>Log containing the '3g link is down' part.
As time goes by, suddenly the connection drops, for a minute or so router's admin page says nothing about disconnection, then "3G USB Modem:" field goes "Identifying..." and status is "connecting..."
Also the dialing takes forever. The steady light on modem, indicating active 3.5g connection, comes alive long before the router gets connected. Modem identification isn't too quick either.

Signal strength is between 35-50%, never had similar problems with modem connected directly to computer.
Any suggestions?

Edit: following instructions found on this topic, I also disabled autorun on the modem.

[attachmentid=2531556]

This shows the QSS function...

Just bought this modem yesterday.

Chuah, please do something to get the router work with Nokia phones. Then I might considering getting a cheapo HSPA Nokia phone to pair with it.

Hey folks, thinking of getting this router. I'm planning to use it with E1762 (for parents in PG). Chuah, is this modem easy to manage? Old folks are not too tech savvy so I'm planning to configure and let them plug and play. More like 1 time settle, no more worries.

Update:
got a hold of ZTE MF100 and it worked flawlessly, so my guess would be the problem lies in router driver support or in my MF636.

So whoever is going to buy MR3420 for MF636 be careful.

But it should. MF636 is mentioned on the box as supported modem model.

Nope, that made no difference either.

there are 2 different versions of modem bin files on the page, tried all already?

I couldn't test the Australian ISP 636 bin file. It's too big for uploading (at least that's the error i got)

Nope, haven't flashed the modem; only thing i have done is disabling the autorun with AT command, and that was done after i got the router.

Tried different firmwares, restoring etcetc (you have to restore after upgrading firmware anyway).

But never mind, i'll buy an old MF100 and everything should be ok:)