I don't have a router. My network card connects directly to a radio modem.

Firstly, I tried opening the ports following the canonical instructions. Didn't work. So, I completely deactivated the firewall, just to check. Didn't work either.

Then I called my ISP to check any possible port blockings. They say they're not blocking any.

Plus, I'm getting blacklisted in a lot of servers... I can't imagine why.

What to do?

As in wireless connection to ISP? That would almost certainly mean you are being routed at the ISP end.

Yes, my connection is wireless (WiMax). I didn't think of that, but what you say is definitely possible. But what can I do? I don't have access to that hypothetical router, it's theirs... and they say they provide unlimited internet access with no port blockings...

I also tried changing port numbers in eMule.

They aren't lying but perhaps you should ask if you have a public IP (dynamic is fine) and if not whether they can forward ports for you. I'm sure WiMax has been asked about here before. Try a forum search.

Incidentally, my ISP tells me I have an unlimited connection.... "of course that's with a 20GB/month limit Sir". This made sense to them.

I asked them, and they replied my IP address is static and private. About port forwarding, they said it's not necessary, and that access from outside is "transparent". The help desk guy also suggested I try another p2p like Ares o Limewire

Your Ip is fixed and private, but must be public (fixed or dinamyc is not worth). Port forwarding in your case is necessary.

Cheers

I also noticed that the IP addresses reported by ipconfig and www.ip-address.com differ from each other, could this be the problem?

Thank you, I'll try again with the ISP people then...

This is not the problem but a symptom.
When you are using just a modem the public Ip reported in www.ip-address.com, 200.3.x.x, is the same you see in ipconfig.
When you are using a router this private ip is different 192.168.x.x or 10.0.x.x

Cheers

Or another way of putting it, the IP from IPCONFIG is the private IP & the other one is your public IP after the ISP router.

Then it seems I'm behind some router, but it's not mine anyway. I'll see what they say about that. Thank you guys...

STILL NO LUCK

My ISP people repeatedly say that they are definitely not blocking any ports for any application, and that the problem can only be on my side... they suggested me to check my antivirus, if all issues with my firewall are resolved.

I use Avast 4.7 antivirus. I found out it has a P2P protection module, so I stopped it. It was no use.

The eMule port test still reports "TCP test failed! UDP test will not be performed".

Remember

They also asked me if I'm having trouble with any other application, and in all honesty, I'm not. MSN messenger works fine, Google Talk too, I also tried uTorrent and it works just fine. And if they're really blocking eMule default ports specifically, it should be solved by changing port numbers and using protocol obfuscation, as some guy told me in IRC. I tried that too but it was useless...

I can still connect with a low id, but a lot of servers refuse my IP address saying it's blacklisted (I don't know why) I read that my low ID could be the cause.

Does uTorrent work with a green tick at the bottom or a yellow triangle? You can click this to perform a test like in Emule.

If green then it suggests that UPnP port forwarding is working and so you can try enabling this in Emule. If yellow triangle then is the same as Low-Id in Emule & ports are blocked by the router.

A reason for being blacklisted is commonly for connecting too frequently. If there were many users from your ISP using then it might appear to the server you were all essentially the same.

The uTorrent port checker reports:

"Error! Port 36858 does not appear to be open."

I also tried with random ports, they all seem to be blocked... with or without firewall.

UPnP in eMule doesn't seem to help either. Does that mean ALL my ports are blocked? It makes no sense to me...

Torpon's instructions found on this thread:

http://forum.emule-project.net/index.php?s...st&p=901521

seem to help with blacklists. Apparently I had too many "fake" servers on my list. I still connect with low ID but at least I can connect to GOOD servers in which my address is not blacklisted!

It is important to have and connect to valid servers, but that is not relevant to blacklisting which will be from connecting too often.

uTorrent confirms you are routed.

Port blocking is not the same as NAT (network address translation), which is what is happening in routing. It is normal for all non-standard ports to be blocked in this case unless a DMZ is enabled. You need your ports to be forwarded. Either your ISP misunderstands, is deliberately not helping or is clueless! Whichever, I think it unlikely an ISP would ever forward ports for you and so you are probably stuck with Low-Id. It's not the end of the world

Ok, I went to my buddy's house, who has the same ISP as me, and found out his public ID address is exactly the same one as me!!! It seems that all of us clients share one single IP address... No wonder it's blacklisted... and not only in eMule servers. Anyway, there has to be a way to tell the ed2k servers that this particular IP address is shared, probably among thousands of users. Is that possible?

And yes... that means that I'm stuck with a low ID too, since port forwarding is probably not an option in this network configuration... or is it?

Well, thanks anyway for your help... I really appreciate it!!!

There's nothing you can do about the IP. It is a common situation especially in appartment block shared networks. It's cheaper for the ISP. Moscow springs to mind.

The only solution to the Low-Id is port forwarding but if your ISP denies it exists or doesn't understand then things are looking unlikely!

The trick with the blacklisting might be to use one of the smaller, less popular servers. People have a habit of insisting on connection to servers with the most users/files, but this is mostly a misunderstanding. It does not matter which you connect to so long as it is valid.

similar to me, you are probably behind a nat on your wireless network. mine will, for a price, give me my own seperate ip and over ride the nat on this address. everybody on this isp has the same outside ip after the main router. the only ip that is diferent is from the main router to your wireless modem. like me, your wireless modem is locked from outside configuration because like mine it probably also controls your bandwidth. even port forwarding from this modem won't work anyways, due to the nat configuration. you should ask to see if they have an option for an extra cost private ip if a high id is important to you. or yours may be totally different from mine. what company makes your modem?