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Intermittent Loss of Connectivity

Featured Replies

UnRAID Version: 6.11.2

Plugins: Unassigned Devices, CA Auto Update Applications, CA Backup/Restore Appdata, CA Cleanup Appdata, Community Applications, Dynamix S3 Sleep, Dynamix System Information, Fix Common Problems, Nerd Tools, Open Files, User Scripts
Dockers: binhex-Radarr, binhex-sabnzbd, mylar3, radarr, binhex-sonarr, EmbyServer

Hardware:

  • Case: Lian-Li PC-A77F
  • Motherboard: SuperMicro X9SCM-F
  • Processor: Intel Core i3-2120 Sandy Bridge Dual-Core 3.3 GHz LGA 1155
  • RAM: Kingston 8GB
  • SATA Extender: Supermicro AOC-SASLP-MV8 SATA Extender
  • Hot-swap Bays: SuperMicro CSE-M35T-1B (x 2)
  • Power Supply: CORSAIR Enthusiast Series TX750M
  • USB (unRAID): Lexar JD Firefly 8GB
  • Hard Drives:
  • Parity    WDC_WD80EFAX-68KNBN0_VDHBX7VD - 8 TB (sdb)
  • Disk 1    WDC_WD20EADS-00R6B0_WD-WCAVY5374796 - 2 TB (sdf)
  • Disk 2    WDC_WD30EZRX-19D8PB0_WD-WMC4N0J7D8TT - 3 TB (sdd)
  • Disk 3    WDC_WD20EARS-00MVWB0_WD-WCAZA9034298 - 2 TB (sde)
  • Disk 4    WDC_WD80EFAX-68KNBN0_VDH2MGVD - 8 TB (sdh)
  • Disk 5    ST4000DM005-2DP166_WGY0E53A - 4 TB (sdj)
  • Disk 6    ST3000DM001-1CH166_W1F23145 - 3 TB (sdm)
  • Disk 7    WDC_WD30EZRX-00SPEB0_WD-WCC4E0NP7NLR - 3 TB (sdl)
  • Disk 8    ST8000DM004-2CX188_ZR128XVM - 8 TB (sdk)
  • Disk 9    ST4000DM005-2DP166_WDH2S61F - 4 TB (sdg)
  • Disk 10    ST4000DM004-2CV104_ZFN0BNMN - 4 TB (sdi)
  • Disk 11    ST8000DM004-2CX188_ZCT3VH40 - 8 TB (sdc)    
  • Cache INTEL_SSDPEKNW512G8_PHNH929303YD512A - 512 GB (nvme0n1)
  • Flash JD_FireFly - 8 GB (sda)

 

Issue: Last night, my internet became very flaky; dropping out every 5 minutes or so. So for the evening, I unplugged my router and just worked off of my cellular hotspot (just Netflix, not unRAID). Before I went to bed, I plugged the router back in.

 

Overnight, the issue with the internet connection was resolved, however, when I tried to access unRAID through the GUI, I was getting "This site can't be reached". I would leave it for a few minutes, and unRAID would then load properly, then it would lock up again with "This site can't be reached".

 

This is also happening with all dockers and when I try to SSH into the server; intermittent responses.

 

So I set the system up to ping the server for a few minutes. There was only one packet lost in that time, however, during that time, I was continuing to experience the intermittent error of being unable to reach it.

 

I did a clean shutdown and restart from the tower itself (shutdown -r now). It boots properly, but the problem persists.

 

What is the next thing I can look at to try to figure out what is going on?

 

Thanks.

cantreach.png

ping.png

putty.png

tower-syslog-20230409-1359.zip

tower-diagnostics-20230409-1332.zip

Edited by Netbug
typo

Solved by Netbug

3 hours ago, Netbug said:

What is the next thing I can look at to try to figure out what is going on?

Perhaps post diagnostics so someone can look into details

  • Author

Update: I have replaced the ethernet cable and switch. No change.

  • Community Expert

Try booting in safe mode, if that doesn't help create a new Unraid stock flash drive, no key needed, and see if you can access the GUI booting that.

  • Community Expert

Also make sure you update, that release has a major bug formatting new disks.

  • Author
3 hours ago, JorgeB said:

Try booting in safe mode, if that doesn't help create a new Unraid stock flash drive, no key needed, and see if you can access the GUI booting that.

I've successfully updated to 6.11.5.

 

If booting into safe mode works, what would be the next step? Also, do you have a link to instructions on how to create an unRAID stock flash drive?

 

Thanks.

  • Author

Safe mode did not help. Issue persists.

 

How does one create an unRAID stock flash drive?

  • Community Expert

Just use the USB tool.

  • Author

Ordered a new USB drive. Hopefully arriving today. Will update once transferred.

  • Author
  • Solution

Oh FFS. I figured it out.

 

I set up a constant ping to the unraid system and had it running in a window. Then when I went to mess around with the cables, I happened to glance up and see that I was still getting no packet loss.

 

Long story short, somehow the DHCP reserved range on my router was wiped so two devices (unraid and a chromecast) had the same IP address.

 

Fixed the reserved range and it seems to be working (fingers crossed).

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