Network fragmentation on Ropsten?

[5chdn]

• Parity Ethereum version: 2.0.5, 2.1.0
• Operating system: Linux, Ubuntu
• Installation: built from source
• Fully synchronized: no
• Network: ropsten
• Restarted: yes

I can't sync ropsten with either beta or stable, looks like a peering issue, I can only find 3-4 Parity peers and sync is stuck at block 599_264, list of unique peers after two days running from two different clients on Ropsten:

• Parity-Ethereum/v2.0.5-stable-f7c9c27-20180911/x86_64-linux-gnu/rustc1.28.0
• Parity-Ethereum/v2.1.0-beta-f59ba3d-20180911/x86_64-linux-gnu/rustc1.28.0
• Parity/v1.10.6-stable-bc0d134-20180605/x86_64-linux-gnu/rustc1.26.2
• Parity/v1.11.5-beta-0487c5b-20180629/x86_64-linux-gnu/rustc1.27.0
• Parity/v1.11.7-stable-085035f-20180717/x86_64-linux-gnu/rustc1.27.1
• Parity/v1.9.2-beta-0feb0bb-20180201/x86_64-linux-gnu/rustc1.23.0

See also https://ropsten-stats.parity.io/

[5chdn]

might be introduced by #8771 and confirmed fixed by #9526