<p>A) </p>

<blockquote>
  <p>To disable the half-open TCP connections limit, set the value of the<br>
     EnableConnectionRateLimiting DWORD registry entry to 0 (0x00000000). 
     To do this, follow these steps:</p>

<pre><code> 1.       Click Start, type regedit in the Start Search box, and then click       
 regedit.exe in the Programs list. If you are prompted for an administrator   
 password or for confirmation, type your password, or click Continue.
</code></pre>
  
  <ol start="2">
  <li>Locate and then double-click the following registry key:</li>
  </ol>
</blockquote>

<pre><code> HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters               
 \EnableConnectionRateLimiting
</code></pre>

<blockquote>
  <ol start="3">
  <li><p>In the Value data box, type 0, and then click OK.</p></li>
  <li><p>Exit Registry Editor.</p></li>
  </ol>
</blockquote>

<pre><code> 5.       Restart the computer.
</code></pre>

<p>B)   Open the command prompt and use the following opening switches, alternatively you could plug the switches into the properties of your exec. shortcut.</p>

<blockquote>
  <p>bitcoin-qt -maxconnections=1000 -maxreceivebuffer=5000 -maxsendbuffer=128 -upnp=1 -seednode=69.246.237.30:8333 -seednode=66.103.14.157:8333 -seednode=47.221.170.251:8333 -seednode=207.172.126.186:8433 -seednode=68.99.179.170:8333 -seednode=52.54.198.224:8433 -seednode=73.252.200.173:8333 -seednode=96.249.247.157:8333 -seednode=47.147.194.182:8333 -seednode=98.206.255.202:8333 -seednode=70.62.132.134:9333 -seednode=107.189.36.4:8333 -seednode=35.198.150.233:8333 -seednode=100.8.165.86:8333 -seednode=100.11.81.93:8333 -seednode=72.224.101.65:8334 -seednode=136.61.154.117:8333 -seednode=34.225.107.142:8333 -seednode=70.181.115.20:8333 -seednode=47.88.33.248:8333 -seednode=54.175.243.122:8333 -seednode=107.23.184.33:8333 -seednode=54.183.187.249:8333 -seednode=13.56.168.64:8333 -seednode=54.183.216.238:8333 -seednode=47.88.76.190:8333 -seednode=54.215.248.143:8333 -seednode=47.88.32.206:8333 -seednode=47.88.78.14:8333 -seednode= -seednode=[2001:470:b3d5:1:641c:6bff:fe9d:bccf]:8333 -seednode=[2601:601:1380:395:c1a:622c:4dd5:363d]:8333 -seednode=[2601:240:d002:2979:69fc:f725:bdc:d8ec]:8333 -seednode=[2601:601:cf80:3e44:f34:2645:867d:f7f6]:8333 -seednode=[2601:441:4480:1618:1077:aa2c:2d9:b5e]:8333 -seednode=[2601:441:4480:1618:1077:aa2c:2d9:b5e]:8333 -seednode=2601:c0:c100:1880:21f:5bff:fe3c:6e84]:8333 -seednode=[2603:3024:181e:3200:ec4:7aff:fe6b:8826]:8333 -seednode=[2601:445:4380:3692:260a:64ff:fe92:15ed]:8333 -seednode=[2001:558:6024:8:45ab:91b9:1f6c:f673]:8333 -seednode=2601:241:301:3ca5:45ff:3590:18bb:abc3]:8333 -seednode=[2601:380:4102:abe0:c9b2:6874:d4aa:2dfc]:8333 -seednode=[2601:446:c200:3580:7161:8278:33fe:effa]:8333 -seednode=[2601:644:8600:4875:470:de72:7c3e:f326]:8333 -seednode=2601:6c3:8380:143c:134:2d28:b933:755d]:8333 -seednode=[2601:1c2:600:bb:ab55:7b10:9f49:c333]:8333 -seednode=[2603:3024:1890:0:88f7:b3ff:feda:18d5]:8333 -seednode=[2002:496d:6fc3:e472:604b:e70c:fe47:d969]:8333 -seednode=2601:408:8100:1480:8ccc:6d53:5a67:2f82]:8333 -seednode=[2601:408:8100:1480:8ccc:6d53:5a67:2f82]:8333 -seednode=[2601:40a:202:6ff0:7cb9:6352:19df:f2b6]:8333 -seednode=[2603:3022:501:7800:495c:728c:ed5d:5d75]:8333 -seednode=2601:152:4400:1d50:30d6:854e:d379:2be]:8333 -seednode=[2601:101:c100:cd69:cd5a:41e:ff56:cf5d]:8333 -seednode=[2601:646:8e80:3ff9:d250:99ff:fe83:a470]:8333 -seednode=[2002:c1c6:6623::c1c6:6623]:8333 -seednode=[2002:58de:961e::58de:961e]:8333 -seednode=[2a04:c000:ed51:917:68::1]:8333 -seednode=[2605:a601:a48:a900:3c1a:85a:1a1:120a]:8333 -seednode=[2001:470:1f12:1dd::2]:8333 -seednode=[2001:470:1f12:1dd::2]:8333 -seednode=[2001:19f0:ac01:3f7:5400:1ff:fe43:e94b]:8333 -seednode=[2604:e880:0:15:ec4:7aff:fe4a:40e1]:8333 -addnode=69.246.237.30:8333 -addnode=66.103.14.157:8333 -addnode=47.221.170.251:8333 -addnode=207.172.126.186:8433 -addnode=68.99.179.170:8333 -addnode=52.54.198.224:8433 -addnode=73.252.200.173:8333 -addnode=96.249.247.157:8333 -addnode=47.147.194.182:8333 -addnode=98.206.255.202:8333 -addnode=70.62.132.134:9333 -addnode=107.189.36.4:8333 -addnode=35.198.150.233:8333 -addnode=100.8.165.86:8333 -addnode=100.11.81.93:8333 -addnode=72.224.101.65:8334 -addnode=136.61.154.117:8333 -addnode=34.225.107.142:8333 -addnode=70.181.115.20:8333 -addnode=47.88.33.248:8333 -addnode=54.175.243.122:8333 -addnode=107.23.184.33:8333 -addnode=54.183.187.249:8333 -addnode=13.56.168.64:8333 -addnode=54.183.216.238:8333 -addnode=47.88.76.190:8333 -addnode=54.215.248.143:8333 -addnode=47.88.32.206:8333 -addnode=47.88.78.14:8333 -addnode= -addnode=[2001:470:b3d5:1:641c:6bff:fe9d:bccf]:8333 -addnode=2601:601:1380:395:c1a:622c:4dd5:363d]:8333 -addnode=[2601:240:d002:2979:69fc:f725:bdc:d8ec]:8333 -addnode=[2601:601:cf80:3e44:f34:2645:867d:f7f6]:8333 -addnode=[2601:441:4480:1618:1077:aa2c:2d9:b5e]:8333 -addnode=2601:441:4480:1618:1077:aa2c:2d9:b5e]:8333 -addnode=[2601:c0:c100:1880:21f:5bff:fe3c:6e84]:8333 -addnode=[2603:3024:181e:3200:ec4:7aff:fe6b:8826]:8333 -addnode=[2601:445:4380:3692:260a:64ff:fe92:15ed]:8333 -addnode=[2001:558:6024:8:45ab:91b9:1f6c:f673]:8333 -addnode=[2601:241:301:3ca5:45ff:3590:18bb:abc3]:8333 -addnode=[2601:380:4102:abe0:c9b2:6874:d4aa:2dfc]:8333 -addnode=[2601:446:c200:3580:7161:8278:33fe:effa]:8333 -addnode=2601:644:8600:4875:470:de72:7c3e:f326]:8333 -addnode=[2601:6c3:8380:143c:134:2d28:b933:755d]:8333 -addnode=[2601:1c2:600:bb:ab55:7b10:9f49:c333]:8333 -seednode=[2603:3024:1890:0:88f7:b3ff:feda:18d5]:8333 -addnode=2002:496d:6fc3:e472:604b:e70c:fe47:d969]:8333 -addnode=[2601:408:8100:1480:8ccc:6d53:5a67:2f82]:8333 -addnode=[2601:408:8100:1480:8ccc:6d53:5a67:2f82]:8333 -addnode=[2601:40a:202:6ff0:7cb9:6352:19df:f2b6]:8333 -addnode=2603:3022:501:7800:495c:728c:ed5d:5d75]:8333 -addnode=[2601:152:4400:1d50:30d6:854e:d379:2be]:8333 -addnode=[2601:101:c100:cd69:cd5a:41e:ff56:cf5d]:8333 -addnode=[2601:646:8e80:3ff9:d250:99ff:fe83:a470]:8333 -addnode=[2002:c1c6:6623::c1c6:6623]:8333 -addnode=[2002:58de:961e::58de:961e]:8333 -addnode=[2a04:c000:ed51:917:68::1]:8333 -addnode=[2605:a601:a48:a900:3c1a:85a:1a1:120a]:8333 -addnode=[2001:470:1f12:1dd::2]:8333 -addnode=[2001:470:1f12:1dd::2]:8333 -addnode=[2001:19f0:ac01:3f7:5400:1ff:fe43:e94b]:8333 -addnode=[2604:e880:0:15:ec4:7aff:fe4a:40e1]:8333</p>
</blockquote>

CC BY-SA 3.0
2017-12-04T18:43:44.667Z
This is unrelated to OP's question.
Pieter Wuille
CC BY-SA 3.0
2017-12-04T17:15:15.167Z
2017-12-04T17:39:18.177Z
2017-12-04T17:39:18.177Z
Eric B.
<p>Typically connection counts of 10 or lower usually indicate that you are behind a router or firewall that is not configured properly. Try enabling UPnP from within the Bitcoin client's options dialog. If that doesn't work, try <a href="http://portforward.com/">manually forwarding</a> port 8333 to the computer which is running the Bitcoin client/daemon.</p>

CC BY-SA 3.0
2015-02-22T23:07:16.003Z
Is this information still current?
Murch
CC BY-SA 3.0
2011-09-02T22:14:58.580Z
You're right. The UPnP was activated by default but not working. The router was forwarding to an old IP address, and I fixed it by reseting it, so nothing changed on the PC.
Jader Dias
CC BY-SA 3.0
2011-09-02T22:21:41.823Z
The outbound connection limit is exactly 8, the inbound connections are only limited by the `-maxconnections` total which is usually 125 (version 0.3.25).
Stéphane Gimenez
CC BY-SA 3.0
2011-09-03T15:33:30.113Z
@Rabbit67890 Some experts turn it off for security reasons. They rather forward the port manually.
Jader Dias
CC BY-SA 3.0
2011-09-03T19:53:11.203Z
@Jader Dias Those experts are generally correct. UPnP is VERY frequently used by hijacking software to get through routers and allow non-standard ports to be opened for malicious purposes. Without that, the firewall will generally drop the strange traffic on the floor, or it will be restricted to a standard port. I've always felt that UPnP was a terrible idea.
Evil Spork
CC BY-SA 3.0
2011-10-17T13:03:33.120Z
@EvilSpork is right.  For easiest solution use UPnp.  For the manual but much safer solution use port forwarding.  Also having open inbound connection port (eithe manual or uPnp) also makes the rest of the network stronger.  Firewalled clients can only receive connections from non-firealled clients so your open inbond port improves the connection access of nearby firewalled clients.
DeathAndTaxes
CC BY-SA 3.0
2011-10-17T13:05:18.997Z
One thing I would add is that only one client on a network subnet (your home LAN) needs inbound connection.  The clients are "smart" enough to look for peers on local network first so if one client on your home LAN gets a new transaction it will be relayed to all other clients on the LAN.
DeathAndTaxes
CC BY-SA 3.0
2011-09-02T21:35:28.337Z
2011-09-02T21:35:28.337Z
David Perry
<p>How do I make my client acquire more than 8 connections? What settings in firewall and operating system, or flags at execution do I need to use to allow it?</p>

CC BY-SA 3.0
2011-09-03T19:54:31.950Z
Could you possibly expand on this question to make it less specific? This has nothing to do with ubuntu or scripts.
Evil Spork
CC BY-SA 3.0
2011-09-04T01:51:25.383Z
@Evil I understand your concern. I haven't devised a clever way to do that though.
Jader Dias
CC BY-SA 3.0
2011-09-04T02:04:12.063Z
I edited it, though since I do not yet have editing permissions, others need to approve it.
Evil Spork
CC BY-SA 3.0
2011-09-04T02:12:33.650Z
@Evil I approved it
Jader Dias
CC BY-SA 3.0
2012-02-20T08:35:26.993Z
See also http://bitcoin.stackexchange.com/q/2378/659 for a similar question.
Chris Moore
<network>
Why can't I get over 8 connections on my client?
Jader Dias
# Why can't I get over 8 connections on my client?

(Asked by: username_0 on 2011-09-02)

How do I make my client acquire more than 8 connections? What settings in firewall and operating system, or flags at execution do I need to use to allow it?

**Tags:** network

> **Comments:**
> **username_1**: Could you possibly expand on this question to make it less specific? This has nothing to do with ubuntu or scripts.  
> **username_0**: @username_1 I understand your concern. I haven't devised a clever way to do that though.  
> **username_1**: I edited it, though since I do not yet have editing permissions, others need to approve it.  
> **username_0**: @username_1 I approved it  
> **username_2**: See also http://bitcoin.stackexchange.com/q/2378/659 for a similar question.  

---

## 2 answers

### Answer by username_5 on 2011-09-02. Score: 14 | Accepted answer

Typically connection counts of 10 or lower usually indicate that you are behind a router or firewall that is not configured properly. Try enabling UPnP from within the Bitcoin client's options dialog. If that doesn't work, try [manually forwarding](http://portforward.com/) port 8333 to the computer which is running the Bitcoin client/daemon.

> **Comments:**
> **username_0**: You're right. The UPnP was activated by default but not working. The router was forwarding to an old IP address, and I fixed it by reseting it, so nothing changed on the PC.  
> **username_7**: The outbound connection limit is exactly 8, the inbound connections are only limited by the `-maxconnections` total which is usually 125 (version 0.3.25).  
> **username_0**: @Rabbit67890 Some experts turn it off for security reasons. They rather forward the port manually.  
> **username_1**: @username_0 Those experts are generally correct. UPnP is VERY frequently used by hijacking software to get through routers and allow non-standard ports to be opened for malicious purposes. Without that, the firewall will generally drop the strange traffic on the floor, or it will be restricted to a standard port. I've always felt that UPnP was a terrible idea.  
> **username_8**: @username_1 is right.  For easiest solution use UPnp.  For the manual but much safer solution use port forwarding.  Also having open inbound connection port (eithe manual or uPnp) also makes the rest of the network stronger.  Firewalled clients can only receive connections from non-firealled clients so your open inbond port improves the connection access of nearby firewalled clients.  
> **username_8**: One thing I would add is that only one client on a network subnet (your home LAN) needs inbound connection.  The clients are "smart" enough to look for peers on local network first so if one client on your home LAN gets a new transaction it will be relayed to all other clients on the LAN.  
> **username_6**: Is this information still current?  

---

### Answer by username_3 on 2017-12-04. Score: -2

A)

> To disable the half-open TCP connections limit, set the value of the  
> EnableConnectionRateLimiting DWORD registry entry to 0 (0x00000000).
> To do this, follow these steps:
>
> ```
>  1.       Click Start, type regedit in the Start Search box, and then click       
>  regedit.exe in the Programs list. If you are prompted for an administrator   
>  password or for confirmation, type your password, or click Continue.
>
> ```
>
> 2. Locate and then double-click the following registry key:

```
 HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters               
 \EnableConnectionRateLimiting

```

> 3. In the Value data box, type 0, and then click OK.
> 4. Exit Registry Editor.

```
 5.       Restart the computer.

```

B) Open the command prompt and use the following opening switches, alternatively you could plug the switches into the properties of your exec. shortcut.

> bitcoin-qt -maxconnections=1000 -maxreceivebuffer=5000 -maxsendbuffer=128 -upnp=1 -seednode=69.246.237.30:8333 -seednode=66.103.14.157:8333 -seednode=47.221.170.251:8333 -seednode=207.172.126.186:8433 -seednode=68.99.179.170:8333 -seednode=52.54.198.224:8433 -seednode=73.252.200.173:8333 -seednode=96.249.247.157:8333 -seednode=47.147.194.182:8333 -seednode=98.206.255.202:8333 -seednode=70.62.132.134:9333 -seednode=107.189.36.4:8333 -seednode=35.198.150.233:8333 -seednode=100.8.165.86:8333 -seednode=100.11.81.93:8333 -seednode=72.224.101.65:8334 -seednode=136.61.154.117:8333 -seednode=34.225.107.142:8333 -seednode=70.181.115.20:8333 -seednode=47.88.33.248:8333 -seednode=54.175.243.122:8333 -seednode=107.23.184.33:8333 -seednode=54.183.187.249:8333 -seednode=13.56.168.64:8333 -seednode=54.183.216.238:8333 -seednode=47.88.76.190:8333 -seednode=54.215.248.143:8333 -seednode=47.88.32.206:8333 -seednode=47.88.78.14:8333 -seednode= -seednode=[2001:470:b3d5:1:641c:6bff:fe9d:bccf]:8333 -seednode=[2601:601:1380:395:c1a:622c:4dd5:363d]:8333 -seednode=[2601:240:d002:2979:69fc:f725:bdc:d8ec]:8333 -seednode=[2601:601:cf80:3e44:f34:2645:867d:f7f6]:8333 -seednode=[2601:441:4480:1618:1077:aa2c:2d9:b5e]:8333 -seednode=[2601:441:4480:1618:1077:aa2c:2d9:b5e]:8333 -seednode=2601:c0:c100:1880:21f:5bff:fe3c:6e84]:8333 -seednode=[2603:3024:181e:3200:ec4:7aff:fe6b:8826]:8333 -seednode=[2601:445:4380:3692:260a:64ff:fe92:15ed]:8333 -seednode=[2001:558:6024:8:45ab:91b9:1f6c:f673]:8333 -seednode=2601:241:301:3ca5:45ff:3590:18bb:abc3]:8333 -seednode=[2601:380:4102:abe0:c9b2:6874:d4aa:2dfc]:8333 -seednode=[2601:446:c200:3580:7161:8278:33fe:effa]:8333 -seednode=[2601:644:8600:4875:470:de72:7c3e:f326]:8333 -seednode=2601:6c3:8380:143c:134:2d28:b933:755d]:8333 -seednode=[2601:1c2:600:bb:ab55:7b10:9f49:c333]:8333 -seednode=[2603:3024:1890:0:88f7:b3ff:feda:18d5]:8333 -seednode=[2002:496d:6fc3:e472:604b:e70c:fe47:d969]:8333 -seednode=2601:408:8100:1480:8ccc:6d53:5a67:2f82]:8333 -seednode=[2601:408:8100:1480:8ccc:6d53:5a67:2f82]:8333 -seednode=[2601:40a:202:6ff0:7cb9:6352:19df:f2b6]:8333 -seednode=[2603:3022:501:7800:495c:728c:ed5d:5d75]:8333 -seednode=2601:152:4400:1d50:30d6:854e:d379:2be]:8333 -seednode=[2601:101:c100:cd69:cd5a:41e:ff56:cf5d]:8333 -seednode=[2601:646:8e80:3ff9:d250:99ff:fe83:a470]:8333 -seednode=[2002:c1c6:6623::c1c6:6623]:8333 -seednode=[2002:58de:961e::58de:961e]:8333 -seednode=[2a04:c000:ed51:917:68::1]:8333 -seednode=[2605:a601:a48:a900:3c1a:85a:1a1:120a]:8333 -seednode=[2001:470:1f12:1dd::2]:8333 -seednode=[2001:470:1f12:1dd::2]:8333 -seednode=[2001:19f0:ac01:3f7:5400:1ff:fe43:e94b]:8333 -seednode=[2604:e880:0:15:ec4:7aff:fe4a:40e1]:8333 -addnode=69.246.237.30:8333 -addnode=66.103.14.157:8333 -addnode=47.221.170.251:8333 -addnode=207.172.126.186:8433 -addnode=68.99.179.170:8333 -addnode=52.54.198.224:8433 -addnode=73.252.200.173:8333 -addnode=96.249.247.157:8333 -addnode=47.147.194.182:8333 -addnode=98.206.255.202:8333 -addnode=70.62.132.134:9333 -addnode=107.189.36.4:8333 -addnode=35.198.150.233:8333 -addnode=100.8.165.86:8333 -addnode=100.11.81.93:8333 -addnode=72.224.101.65:8334 -addnode=136.61.154.117:8333 -addnode=34.225.107.142:8333 -addnode=70.181.115.20:8333 -addnode=47.88.33.248:8333 -addnode=54.175.243.122:8333 -addnode=107.23.184.33:8333 -addnode=54.183.187.249:8333 -addnode=13.56.168.64:8333 -addnode=54.183.216.238:8333 -addnode=47.88.76.190:8333 -addnode=54.215.248.143:8333 -addnode=47.88.32.206:8333 -addnode=47.88.78.14:8333 -addnode= -addnode=[2001:470:b3d5:1:641c:6bff:fe9d:bccf]:8333 -addnode=2601:601:1380:395:c1a:622c:4dd5:363d]:8333 -addnode=[2601:240:d002:2979:69fc:f725:bdc:d8ec]:8333 -addnode=[2601:601:cf80:3e44:f34:2645:867d:f7f6]:8333 -addnode=[2601:441:4480:1618:1077:aa2c:2d9:b5e]:8333 -addnode=2601:441:4480:1618:1077:aa2c:2d9:b5e]:8333 -addnode=[2601:c0:c100:1880:21f:5bff:fe3c:6e84]:8333 -addnode=[2603:3024:181e:3200:ec4:7aff:fe6b:8826]:8333 -addnode=[2601:445:4380:3692:260a:64ff:fe92:15ed]:8333 -addnode=[2001:558:6024:8:45ab:91b9:1f6c:f673]:8333 -addnode=[2601:241:301:3ca5:45ff:3590:18bb:abc3]:8333 -addnode=[2601:380:4102:abe0:c9b2:6874:d4aa:2dfc]:8333 -addnode=[2601:446:c200:3580:7161:8278:33fe:effa]:8333 -addnode=2601:644:8600:4875:470:de72:7c3e:f326]:8333 -addnode=[2601:6c3:8380:143c:134:2d28:b933:755d]:8333 -addnode=[2601:1c2:600:bb:ab55:7b10:9f49:c333]:8333 -seednode=[2603:3024:1890:0:88f7:b3ff:feda:18d5]:8333 -addnode=2002:496d:6fc3:e472:604b:e70c:fe47:d969]:8333 -addnode=[2601:408:8100:1480:8ccc:6d53:5a67:2f82]:8333 -addnode=[2601:408:8100:1480:8ccc:6d53:5a67:2f82]:8333 -addnode=[2601:40a:202:6ff0:7cb9:6352:19df:f2b6]:8333 -addnode=2603:3022:501:7800:495c:728c:ed5d:5d75]:8333 -addnode=[2601:152:4400:1d50:30d6:854e:d379:2be]:8333 -addnode=[2601:101:c100:cd69:cd5a:41e:ff56:cf5d]:8333 -addnode=[2601:646:8e80:3ff9:d250:99ff:fe83:a470]:8333 -addnode=[2002:c1c6:6623::c1c6:6623]:8333 -addnode=[2002:58de:961e::58de:961e]:8333 -addnode=[2a04:c000:ed51:917:68::1]:8333 -addnode=[2605:a601:a48:a900:3c1a:85a:1a1:120a]:8333 -addnode=[2001:470:1f12:1dd::2]:8333 -addnode=[2001:470:1f12:1dd::2]:8333 -addnode=[2001:19f0:ac01:3f7:5400:1ff:fe43:e94b]:8333 -addnode=[2604:e880:0:15:ec4:7aff:fe4a:40e1]:8333

> **Comments:**
> **username_4**: This is unrelated to OP's question.  

---

