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Problem using Time Machine with Synology DS218+
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<blockquote data-quote="jhmiii" data-source="post: 1880331" data-attributes="member: 378087"><p>I've had a Synology DS218+ for a few years. It is used to back up two computers via Time Machine. The only problem I have experienced is when the power goes out and the Synology reboots. Sometimes it arrives back on the network with a new address. In the past the addresses only varied between 192.168.0.2 and 192.168.0.4. I was able in these cases to reset the DS218 address back to 0.2 and then Time Machine would find the drive and all was well. The power went out two weeks ago and now the DS218 has an address of 192.168.4.44. I've been unable to change this successfully to 0.2. When I attempt to change it the DS218 can no longer be found by either the Synology app or via their web service. (Is the third number the gateway? Maybe it can't be changed? Clearly, I don't really understand these addresses!)</p><p></p><p>So I decided to just change the disk that Time Machine uses. Time Machine preferences sees the new disk and also recognizes the backup file on the disk. It correctly asks me if I would like to use this file as a replacement for the file at the previous address. I say yes and it asks for a password. The password for this sparsebundle is in Keychain, so I enter it. Of course it is not recognized!! I realize that without the password I can't access this old sparsebundle and must begin backups from scratch. </p><p></p><p>Finally, I am getting to my question. What is the best way to keep this from happening in the future? Is there some way to get Time Machine to recognize the disk and not the address of the disk? Is there a way to more effectively control the assigned address? Should I just purchase a UPS and hope it keeps the DS218 from rebooting?</p><p></p><p>I appreciate any and all input.</p><p></p><p>John</p><p></p><p>Mac Book Pro 15" 2016</p><p>OS 10.14.6</p></blockquote><p></p>
[QUOTE="jhmiii, post: 1880331, member: 378087"] I've had a Synology DS218+ for a few years. It is used to back up two computers via Time Machine. The only problem I have experienced is when the power goes out and the Synology reboots. Sometimes it arrives back on the network with a new address. In the past the addresses only varied between 192.168.0.2 and 192.168.0.4. I was able in these cases to reset the DS218 address back to 0.2 and then Time Machine would find the drive and all was well. The power went out two weeks ago and now the DS218 has an address of 192.168.4.44. I've been unable to change this successfully to 0.2. When I attempt to change it the DS218 can no longer be found by either the Synology app or via their web service. (Is the third number the gateway? Maybe it can't be changed? Clearly, I don't really understand these addresses!) So I decided to just change the disk that Time Machine uses. Time Machine preferences sees the new disk and also recognizes the backup file on the disk. It correctly asks me if I would like to use this file as a replacement for the file at the previous address. I say yes and it asks for a password. The password for this sparsebundle is in Keychain, so I enter it. Of course it is not recognized!! I realize that without the password I can't access this old sparsebundle and must begin backups from scratch. Finally, I am getting to my question. What is the best way to keep this from happening in the future? Is there some way to get Time Machine to recognize the disk and not the address of the disk? Is there a way to more effectively control the assigned address? Should I just purchase a UPS and hope it keeps the DS218 from rebooting? I appreciate any and all input. John Mac Book Pro 15" 2016 OS 10.14.6 [/QUOTE]
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