Use the Network page to control network connection and performance settings.
|a||Internal address||IP address the computer/device's operating system reports to the CrashPlan application. Read-only.|
|b||External address|| |
CrashPlan and PRO: Address CrashPlan's cloud sees for this computer. Read-only.
PROe: Device's IP address from your master server's perspective. Read-only.
|c||Discover||Click to force CrashPlan to test and update connection status.|
|d||Network interfaces [Configure...]|| |
Backup is disabled when the computer/device is connected via de-selected network interfaces. Unless a network interface is explicitly excluded, backup is allowed over any connected network interface. A network interface must be connected before it can be disabled; however, once an interface is disabled, it remains disabled in CrashPlan unless specifically re-enabled.
Note: Feature available on Windows and Mac only
|e||Wireless networks [Configure...]|| |
Backup is disabled when the computer/device is connected via de-selected wireless network SSIDs. Unless a network's SSID is explicitly excluded, backup is allowed over all wireless networks. Click Add to specify an SSID not displayed in the list.
Click Add to specify additional wi-fi networks.
Note: Feature available on Windows and Mac only
|f||Proxy enabled||Enable proxy settings to connect to the Internet via a proxy server.|
|g||Proxy PAC URL||The URL required to connect to the Internet via a proxy. Contact your network administrator if you do not know the URL for your network.|
|h||WAN||Settings apply when backing up to a destination across the Internet. If the CrashPlan application sees the destination you are backing up to as a public or routable IP address, WAN settings apply.|
|i||LAN||Settings apply when backing up to a destination on your local network. If the CrashPlan application sees the destination you are backing up to as a private or non-routable IP address, LAN settings apply.|
|j||Limit sending rate when away||Bandwidth setting when you are not using your computer. Selecting a larger value allows CrashPlan to back up your files faster.|
|k||Limit sending rate when present||Bandwidth setting when you are working at your computer. Keep in mind backup will be slower at lower bandwidth settings.|
|l||Sending1)||Expert users only! |
Size of outbound buffer for WAN and LAN (i.e. the amount of data that's allowed to be "in flight" at one time over the network between the source and the destination).
|m||Receiving1)||Expert users only! |
Size of inbound buffer for WAN and LAN (i.e. the amount of data that's allowed to be "in flight" at one time over the network between the source and the destination).
|n||TCP Packet QoS||Advanced users only: must have QoS capable router configured. |
Choose the TCP Packet quality or custom DSCP value from the list: Low, Normal, Reliability, Throughput or DSCP…. You need to restart your computer before your new selection takes effect.
|o||Undo Changes||Reset to previous settings (same effect as cancel).|
1) In most circumstances, the expected performance gain from tuning CrashPlan's buffer settings is negligible, and incorrectly configuring these settings can adversely affect network performance. Some connections, especially over high-latency networks, can benefit from adjustments to buffer sizes, but calculating these values is a topic for experienced network administrators, and beyond the scope of CrashPlan Support.
CrashPlan does it's best to try and connect to other computers without much configuration on your part, but sometimes you might need to adjust your firewall settings, especially after a CrashPlan upgrade or an operating system update. Connecting to CrashPlan Central and Troubleshooting Connections Between Computers review these settings in detail.
If you are a CrashPlan For Home user, yes. The backups go directly to your own computers but they need our service to find each other and establish the connection. This is not user configurable. A connection can persist if one or both computers cannot connect to CrashPlan's servers, but this is not guaranteed. For example, if one computer's IP address changes while its Internet connection is down (and therefore can't connect to CrashPlan), the other computer may not be able to find it.
If you don't want to rely on our servers for the connection, use CrashPlan For Business.
“Destination unavailable. Backup location is not accessible” means that the location of the archive on the destination computer is not valid. This could be because the drive is not currently mounted or because permissions do not allow access. See Destination Unavailable for more details.
CrashPlan tries to open random ports for listening as part of the rendezvous connection process. At this time there is no way to stop that. It won't happen if CrashPlan is able to connect to the other CrashPlan computer directly on TCP 4242 (by port forwarding, etc.). We recommend allowing all CrashPlan connections in your firewall.
In lay terms, if the destination computer is across the Internet, it is considered a WAN connection and the WAN bandwidth limits apply.
The technical definition is this:
If the computer you're trying to connect to has a routable IP address, then it is considered a WAN connection. If the computer you're connecting to does not have a routable IP address, it is considered a LAN connection and LAN bandwidth throttling settings are applied. Setting the bandwidth to None means no throttling.
The speed you see is the “effective speed” and not the raw speed. The effective speed takes into consideration data de-duplication, compression and incremental backup. So if you are sending (or receiving) a lot of duplicate data that compresses really well (e.g. lots of revisions of Word documents where “save as” was used frequently), it's possible to see very high numbers for speed.
CrashPlan works extremely well and remains quite usable on high latency networks. There are many reasons for this, but it is mainly because:
We've been used on cellular networks (1G, 2G, 3G, 4G), satellites, DSL, Cable, Wireless and wired ethernet – all with great success.
Things you may notice in a high latency situation:
It won't give up in these situations, it just keeps trying.