# Troubleshooting

Instrumentation > NextSeq 1000/2000 > Troubleshooting

* [Failure to find fiducial errors on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000003549)
* [Flow cell is not detected error on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000006639)
* [How To Power Cycle NextSeq 1000/2000 Video](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000005552)
* [How to change passwords and unlock accounts on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000003297)
* [How to resolve an error occurred while populating NextSeq 1000/2000 data in SAV](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000007427)
* [Humidity warning during pre run check on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000003527)
* [Internal network issues on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000003638)
* [Manually stopping and restarting Universal Copy Service (UCS) on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000003515)
* [NextSeq 1000 and 2000 Run Quality and Best Practices Support Webinar Video](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000007987)
* [NextSeq 1000/2000 Control Software upgrade from 1.7.0 to 1.7.1 system integration error](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000009011)
* [Pre Run check failed with an alignment check failure on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000003529)
* [Pre run check failed at Fluidics stage on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000003528)
* [Pre run check failure due to "I/O error" on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000005170)
* [Recommendations for using external hard drives on the NextSeq 1000/2000 platforms](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000006528)
* [Resolving issues with Process Management on NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000006526)
* [Sample Sheet Import Errors on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000003521)
* [Single tile drop outs affecting metrics on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000002723)
* [Troubleshooting "An error occurred while checking requeue availability" on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000006285)
* [Troubleshooting "Error performing Sequencing\_ProtocolName\_Safestate" error on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000007458)
* [Troubleshooting "Failed to send WATCHDOG=1 notification message:" on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000007809)
* [Troubleshooting "Initialization failed on Integrated Imaging Module" error on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000003548)
* [Troubleshooting 'libminizip.so.1 not found' errors when trying to start TeamViewer QuickSupport on NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000010194)
* [Troubleshooting 'mount' Errors when Networking NextSeq 1000/2000 Instruments](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000006964)
* [Troubleshooting DRAGEN version warnings and errors after the NextSeq 1000/2000 Control Software upgrade to version 1.7](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000008688)
* [Troubleshooting Failed to execute connectivity check input parameters on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000005227)
* [Troubleshooting Filesystem type exFAT not configured in kernel message on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000007105)
* [Troubleshooting NextSeq 1000/2000 Control Software failure to initialize with cartridge error](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000007029)
* [Troubleshooting NextSeq 1000/2000 eject cartridge prompt remains after ejecting the cartridge](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000006554)
* [Troubleshooting NextSeq 1000/2000 low read 1 intensity](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000007095)
* [Troubleshooting System File errors during pre run checks on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000009048)
* [Troubleshooting a black screen after a power cycle on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000003863)
* [Troubleshooting an Unexpected Shutdown on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000003637)
* [Troubleshooting install package integrity check failed during NextSeq 1000/2000 upgrade to v1.7](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000008890)
* [Troubleshooting keyring prompts on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000006152)
* [Troubleshooting network output directory issues after updating to NextSeq 1000/2000 CS v1.5](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000007572)
* [Troubleshooting no DRAGEN License after installing DRAGEN BCL Convert 4.2](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000008923)
* [Troubleshooting pre run check failure due to "Imaging test failed" on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000009854)
* [Understanding loading and percent loading concentration on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000003121)
* [Universal Copy Service failed to validate the Output Folder error on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000003547)
* [Updating the system time on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000006790)
* [Why is NextSeq 1000/2000 control software update not available from the Software Update menu?](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-troubleshooting-list/000007335)